KPM Plasto Rubber

KPM Plasto Rubber is a leading manufacturer of rubber sealing products like grommets, rings o, rubber seals, rubber gaskets, o rings, EPDM gaskets, sealing rings, neoprene gasket etc

PRODUCTS

• Anti-vibration rubber mounts
• Hard Rubber parts
• Bakelite Parts
• Bellows
• Rubber Bushes
• Profile Rings
• Reinforced Diaphragms
• Rubber Pipe joints
• Rubber Seals
• Rubber Gaskets
• Trolley Wheels
• Valve Parts
• Rubber to Metal bonded parts
• O-Rings
• Custom rubber parts
• Grommets

MATERIALS USED:

Natural rubber, SBR, Neoprene, Nitrile rubber, XNBR, HNBR, NBR-PVC, ECO, Hypalon, EPDM, Silicone rubber, flurosilicone rubber, Viton, AFLAS, FFKM, Polyurethane, Butyl rubber, bakelite etc

QUALITY:

• ISO 9001:2015 certified
• NSF / ANSI / CAN 61 certified products
• Best in class manufacturing facilities
• State of art testing lab
• In-house compounding facility
• 100% quality assured parts
• Advance tooling technology
• REACH and RoHS compliant materials
• Test certificates

APPLICATIONS:

• Agriculture
• Automotive
• Electrical industries
• General Engineering
• Oil and gas
• Potable water
• Textile
• Valves

ANTI-VIBRATION RUBBER MOUNTS

Anti-vibration rubber Mounts / Vibration Isolators are designed to reduce the level of vibration transmitted to, or from machinery and equipment. Vibration isolation mounts manufactured in rubber with a variety of bonded metal components.

The Design of anti-vibration rubber mount is according to the application, as well as KPM is equipped to manufacture such vibration isolators and having a wide range of polymers and metal parts to bond the same.

Anti-vibration rubber mount for machine tool

In addition, mechanical vibrations and impact stress are the biggest problems for the equipment. KPM can produce mounts to the specific vibration isolation and noise reduction systems.

Moreover, KPM can design special-purpose rubber mountings offering high deflection being able to absorb shock loads. KPM rubber mounts are designed for better rebound control features to reduce excess movements under shock loads.

Similarly, AV mounts will lower maintenance costs and increase lifetime and reduce downtime of the machinery.

BAKELITE PARTS

Bakelite is a material based on the thermosetting phenol-formaldehyde resin. Bakelite products have unique properties of low density with high dimensional stability, surface hardness, gloss heat resistance to corrosion and electrical insulation properties.

Bakelite is phenol-formaldehyde resin binder mixed with fillers like wood flour, fibrous cellulose, graphite, mica and glass fibre. Against the properties, the fillers are selected. KPM has the facility to mold Bakelite parts for specific products made to bond with the rubber

With a team of experts and decades of experience, KPM has been excelling in Bakelite molding for 2 decades now. KPM has incorporated its facility and a skilled team of technicians to manufacture bakelites with 100% inspection and on-time delivery.

Bakelite is a material based on the thermosetting phenol-formaldehyde resin binder mixed with fillers like wood flour, fibrous cellulose, graphite, mica and glass fibre. Due to their unique properties of low density with high dimensional stability, surface hardness, gloss heat resistance to corrosion and electrical insulation properties, they are in demand to every sector.

In addition to assuring the technical stability of bakelite parts, KPM has installed the automation technique to bond the bakelite to rubber and other compatible composites. We have an expert team of chemists develop parts where the adhesive is precisely applied and certified of its desirable properties. Against the properties, bakelite bonding can also be applied to rubber as well as the other substrates as desired.

Being known for its non-conductivity and extraordinary resistance to heat, and chemical action, they are widely used in non-conductive parts for electrical parts, automobile parts and electronic devices. Having a rich history of usage in early machine guns, wireless telephone and etc., Bakelite is still irreplaceable in most of its applications.

RUBBER BELLOWS

KPM is one of the largest rubber products manufacturers in India based in Coimbatore.
Being known as industry-leading rubber bellow manufacturer in India, KPM produces bellows against the customer drawings and specifications.
Bellows are expandable or collapsible components to refrain from foreign particles. The round rubber bellows prevent the escape of the lubricant at shaft joints to protect the joints against soiling.
KPM work with the customer (technical input) while developing a new bellow during its design stage. Our supply ranges include silicone rubber, neoprene, industrial rubber and any kind of custom-made products.
Types:

• Single-ended
• Double-ended
• Bellow with ribs & without ribs
• Telescopic Bellows
• Tapered
• Convoluted
• Rubber Gaiter bellows

The molded bellow material should be well suited with outside (exposed to atmosphere & ozone resistance) & inside conditions (oil, grease & lubricants).

CUSTOM RUBBER PARTS

Need close tolerance with desired chemical and physical property for a rubber part in an intricate design without compromising quality?
KPM can vouch for it because our forte is manufacturing of custom rubber moldings and We are the best at what we do.

KPM considers bespoke rubber molding parts are criticality and application dependent, hence we incorporate our strong knowledge in the chemistry behind rubber formulation and latest techniques to assure you the custom-made rubber product.

KPM’s industry-leading technological set up for rubber molding is well equipped to manufacture any types of rubber parts in any complicated form. The molding process in KPM as follows,

• Rubber Injection molding
• Vacuum Compression molding
• Transfer molding
• Compression molding
• Bakelite molding

Being one of the top custom rubber manufacturers in India, KPM also has tailor-made formulations to provide coloured custom parts.

HARD RUBBER

Hard rubber parts commercially known as ebonite are manufactured by vulcanizing from a specific compounding technique. The hardness of ebonite rubber parts is measured in the Shore D scale.
KPM produces black ebonites, coloured ebonites and marbeled ebonites in different polymers against its applications.KPM can supply the ebonites also known as hard rubber washers, after machining, as precise as customer drawing.

Different chemistry is used for ebonite / hard rubber manufacturing, they combine and turn out to be less flexible and with a poor elongation percentage close to zero. Hard Rubber provides excellent electrical insulation performance, durable and good machinability.

When resistance is the only required property, Hard rubber parts can serve the need beyond expectations. Hard rubber parts commercially known as ebonite are used. The inertness of the vulcanised rubber literally resists to many oxidative chemicals and other conditions. Considering the fact that the service life of the hard rubber parts is remarkable, they are too hard to be replaced.

They are manufactured by vulcanizing from a specific and a laborious compounding technique. With an inhouse testing facility of the Shore D scale and expertise in the same, we can certify the hard rubber products as well.

KPM can supply the ebonites also known as hard rubber washers, after machining, as precise as customer’s prints. The structure of the part and the criticality is as per customer’s prints as well as the properties. With an experienced team of chemists and the skilled technicians, KPM formulates the hard rubber parts as per specification against application environments. KPM has the facility and the techniques to produce

• Black ebonites
• Coloured ebonites
• Marbeled ebonites

Custom molded hard rubber parts in different desired polymers against its applications.
A diligent chemical practice is required to mold the ebonite / hard rubber manufacturing, they combine and turn out to be less flexible and with a poor elongation percentage close to zero. Hard Rubber provides excellent electrical insulation performance, durable and good machinability. Having a rich history hard rubber parts find their application in meticulous parts like musical instruments, batteries, cosmetics, sports products as well as research parts in physics. Due to their chemical property of resisting the foreign media they are used in lining in tanks and vessels.

GROMMETS

Rubber Grommets with a hole to protect or insulate a rope or cables and wires. Its selection based on:

• Hardness
• Rubber Materials
• Atmospheric conditions
• Engineering design

Rubber grommets are used to protect objects from sharp corners and edges. In addition, the inherent functions such as flared or collared on each side allow it to be press-fit into an application without adhesive or any additional fasteners to hold them in position. When a wire or tube needs to pass through metal or another material it holds wires at their point of contact to avoid damage to connection points.

Being known for the quality and precision, KPM is considered as one of the best grommet manufacturers in the South of India.

In addition, the primary uses for custom rubber grommets are vibration control, protecting defensive edges of a hole, climate seal around a wire or tube. Some of the different types of grommets are:

• Tapered grommets
• Silicone grommets
• Custom grommets
• Flanged grommets
• Blind grommets
• Cable grommet
• Custom rubber grommet

Based on the base polymer selection the properties like high pressure, high temperature, insulation can be achieved eg., EPDM grommets, Nitrile grommets.

The self-sealing grommets are particularly susceptible to abrasion or to breaking after repeated flexing at its point of entry through a surface.

INSERT MOLDED PARTS

What is metal bonding? Why do we need them?

Rubber has to be bonded to a substrate for functional requirements for various applications in static as well as in dynamic conditions.

Chemical and physical bonding strength have to be developed in the required quantum to withstand the various types of shocks, vibrations and sealing.

Bonding the rubber to the metal instead of utilizing it as an assembly provides a more consistent and technically superior solution.

To achieve a strong bond much of the value lies in the tooling design, surface preparation, primer selection,

And similarly curing configuration (temperature, pressure and duration) and the rubber to substrate adhesive.

One of the best suppliers and manufacturers of rubber to metal bonded parts in India, KPM has also established the facility to bond rubber to Bakelite, fabric and other substrates as per requirement.

They are dynamically useful for products requiring retaining the strength of the metal along with remaining flexible as rubber.

Moreover, KPM having integrated automation recently, and have in-house facilities to validate adhesion properties.

Our technical staff can assist with product development, design and select the right rubber to metal bonding agents for the performance necessities of the application.

KPM’s area of expertise is rubber to substrate bonding for producing rubber to metal bonding parts,

KPM proves its performances by getting repeated orders from its customers for excellence in bonding techniques.

KPM more specialized to produce following rubber to metal parts processes,
Rubber to Stainless steel bonding (CF8M, 200 series, 300 series, 400 series & etc.,), Brass bonding, Copper bonding, Aluminium bonding.

Mild steel / WCB bonding, Carbon steel bonding, Cast Iron and SG Iron bonding, Hast alloy bonding, Monel alloy bonding.

And In addition rubber to alloy bonding, Bakelite bonding, Fabric bonding (Nylon, Polyester, Cotton), Silicone to metal bonding

Above all, Rubber to metal bonded parts comes in a wide variety like rubber-metal isolators mountings, rubber-metal bushings (metalastic bushes).

metal seal rings (metal-clad rod seal, metal c seal), shock absorbers (rubber dampers), buffers.

Metal-cased oil seals, metal o rings, metal gasket (soft metal gasket, flat metal gasket), rubber grommet with metal insert, rubber bonded metal washer etc.

O- RINGS

An O – Ring seal is a circular band with a circular or rectangular cross-section to arrest leakages between two faces or over shaft and hole. They are designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

The selection is based on chemical compatibility, service temperature, sealing pressure, lubrication requirements and working atmosphere. O-Rings such as UV Resistant O-Rings, Oil resistant O-Rings, heat resistant O-Rings are obtained using the base material selection

Here is the list of O-Ring types are,

• Silicone O rings, EPDM O rings, Neoprene O rings, Viton O rings, Polyurethane O rings, FVMQ O rings, Nitrile O rings etc.,
• Hydraulic O rings, Pneumatic O rings
• Rectangular cross-sectional O rings, D cross-sectional O rings
• Piston O rings
• Static O rings, Dynamic O rings
• Metric O rings
• Toroidal seals
• Bonded O rings
• Encapsulated O rings

As a prominent rubber O-Ring manufacturer in South India, KPM has facilities to manufacture custom O rings and non-standard O rings. KPM can manufacture any seal, in any material, while you wait, and can also manufacture custom parts for all seal applications. Our continual investment and development of product, personnel and customer satisfaction ensure we remain unrivalled in our field for quality and service.

KPM has the potential for failure mode and effect analysis to ensure the best quality industrial O rings. We offer O rings ranging from micro-O rings to large diameter O rings for your demanding application

Quad Rings have an advantage over standard O Ring by providing two sealing points due to its four-lobed configuration resulting in a more stable seal. It is to be noted that the parting surface of the Quad Ring is away from the sealing surface, thus providing a more uniform seal. KPM offers highly precise metric X rings with remarkable quality.

PROFILE RINGS

A polymer-based ring with custom cross-sections to solve the specific sealing requirements. KPM has the facility to produce the thinnest from 0.65mm to 850mm size profile rings.

The material selection and the property selection can be against the custom requirement. Although the geometric configuration of the seal is critical, it is also very important to select the most appropriate compound for the specific application.

Having a team of experts with decades of experience, KPM can accurately mold the profile rings as per the criticality in every section. Profile ring is a polymer-based ring with custom cross-sections to solve the specific sealing requirements. KPM has the facility to produce the thinnest from 0.65mm to 850mm size profile rings with strict adherence to the close tolerance as per prints

KPM has the tear trim technology providing minimal flash parts and flash free parts reducing the scrap rate. The molding processes in KPM molding shop includes

• Compression molding
• Vacuum compression molding
• Transfer molding
• Vacuum transfer molding
• Injection molding.

In addition to delivering parts on time, we provide the parts with 100% inspection and zero PPM. Our in-house testing has the facility to perform a non-contact measuring system to ensure you of the dimensional stability. Our laboratory is equipped with industry-leading technology to reassure you of the quality and performance of our parts.

Although the geometric configuration of the seal is critical, it is also very important to select the most appropriate compound for the specific application. The material selection and the property selection can be against the custom requirement.

RUBBER BUSHES

Rubber lining for a hole enclosing revolving shaft with or without face profiles. The rubber bushings can be manufactured with or without metal bonded. These bushes are used in both static and dynamic conditions. The selection of materials for the product is based on its working environment. It should have good mechanical, ageing, and swelling properties.

Few bushes’ functions to isolate the vibration of the shaft when it’s in drive. They are designed with grooves to lubricate the shafts, sometimes the grooves are used to pump from the highly viscous mud like aggressive media.

KPM has been supplying Rubber bushes and Rubber to metal bonded bushes since the day we began our industry. One can say, it’s our expertise from decades of experience. The selection of materials for bushes is based on its working environment considering the good mechanical, ageing, and swelling properties. KPM is one of the notable rubber bush manufacturers in south of India, we can supply the parts along with the following qualities

On-time delivery for local and export lots
Custom quality services for each product line
100% Inspection on delivery

Being majorly used in critical area, we have a team of meticulous employees who reassure you with 100% inspected parts. We can supply bushes that are used in both static and dynamic conditions.

The molds are designed with close tolerances that can mold rubber lining for a hole enclosing revolving shaft with or without face profiles. Provide any type of rubber bushings with or without metal bonded or any other substrate bonded, KPM can assure you of its properties and performance.

Understanding the critical functionality of a few bushes to isolate the vibration of the shaft when it’s in drive, KPM has the in-house testing facility to certify the parts. Some of the bushes are designed with grooves to lubricate the shafts, sometimes the grooves are used to pump from the highly viscous mud like aggressive media, in cases like that our team undergo a media compatibility study to provide the parts functioning beyond its expectation.

RUBBER BUSHES

Rubber lining for a hole enclosing revolving shaft with or without face profiles. The rubber bushings can be manufactured with or without metal bonded. These bushes are used in both static and dynamic conditions. The selection of materials for the product is based on its working environment. It should have good mechanical, ageing, and swelling properties.

Few bushes’ functions to isolate the vibration of the shaft when it’s in drive. They are designed with grooves to lubricate the shafts, sometimes the grooves are used to pump from the highly viscous mud like aggressive media.
KPM has been supplying Rubber bushes and Rubber to metal bonded bushes since the day we began our industry. One can say, its our expertise from decades of experience. The selection of materials for bushes is based on its working environment considering the good mechanical, ageing, and swelling properties. KPM is one of the notable rubber bush manufacturers in south of India, we can supply the parts along with the following qualities:

On-time delivery for local and export lots
Custom quality services for each product line
100% Inspection on delivery

Being majorly used in critical area, we have a team of meticulous employees who reassure you with 100% inspected parts. We can supply bushes that are used in both static and dynamic conditions.

The molds are designed with close tolerances that can mold rubber lining for a hole enclosing revolving shaft with or without face profiles. Provide any type of rubber bushings with or without metal bonded or any other substrate bonded, KPM can assure you of its properties and performance.

Understanding the critical functionality of a few bushes to isolate the vibration of the shaft when it’s in drive, KPM has the in-house testing facility to certify the parts. Some of the bushes are designed with grooves to lubricate the shafts, sometimes the grooves are used to pump from the highly viscous mud like aggressive media, in cases like that our team undergo a media compatibility study to provide the parts functioning beyond its expectation.

REINFORCED DIAPHRAGMS

Fluid, when pressurized into the cylinder, exerts a force on the piston head, creating motion on the mechanical device or assembly. To maintain the pressurized fluid from leaking beyond the transferring piston, Diaphragm acts as a motion tolerant seal.

Diaphragms functions are:

Transfers pressure from either side but not the material being contained
Works under different pressures (liquids/gases)
Separates the different medium of fluids

As a diaphragm manufacturer, we would recommend the criteria while selecting the diaphragms is their contact medium, working atmosphere, frequency of deflection and its engineering design.

KPM offers the rubber molded diaphragms with the highest compatibility as it’s the most required property while operating with varying pressure, frequency and fluids.

KPM also offers the industry-leading fabric reinforced diaphragms resulting as an excellent sealing solution.

Diaphragms are also used to protect a process fluid from the pressure sensor. They are widely used whenever an accurate, reliable response to hydraulic or pneumatic pressure changes is needed.

RUBBER PIPE JOINTS

It is a flat ring of rubber inserted at a joint to tighten and prevent leakage. KPM makes close tolerances to match the customer specifications. KPM uses good quality raw materials and makes good quality washers to meet customer requirements. In some cases, we produce rubber bonded with metal washers for pressure applications.

Pipe joint is a flat ring of rubber inserted at a joint to tighten and prevent leakage. Our team of expert chemists study the environmental compatibility of the pipe joint and design a custom formulation to meet your desired specification.

Instead of utilizing as a subassembly, the rubber and the substrate part can be bonded to provide the collection of both properties. KPM has incorporated the automation facility to ensure the precise bonding on the parts thus improving the repeatability.

KPM’s molding facility – compression molding, vacuum compression molding, transfer molding, vacuum transfer molding and injection molding.

Our scope of materials includes from NR, EPDM, NBR, HNBR, XNBR, FKM, FFKM, CR etc.,

The state of art machinery and well-equipped instruments are proof that KPM sticks to nothing but quality and performance. We strictly adhere to the close tolerances of the customer’s prints to match the same. Our raw materials are from reputed manufacturers, which are handled and consumed as per the design of the formulation.

RUBBER SEALS

O Ring and seal are almost the same except that rubber oil seals vary from O-rings such that external pressure/force is used for effecting sealing actions. The seal construction will consist of a sprung main sealing lip which has a point contact with the shaft.

Rubber Seals also may have additional dust lips to avoid entry of foreign particles. Seal selection is based on sealing pressure, service temperature, lubrication requirements and cleanliness of the environment.

KPM could offer any type of rubber oil seals with remarkable quality achieving its working properties as specified by the customer.

Custom molded rubber seals and rubber oil seals:

• Reciprocating Seals
• (Metric) Piston Seals
• (Metric) Oil seals
• Rod Seals
• Labyrinth Seals
• Bodok Seals
• Wiper Seals
• V ring Seals
• Chevron Seals
• Lip Seals
• Single lip Seals
• Double lip Seals
• Shaft Seals
• Axial Shaft Seals
• Radial shaft Seals
• Rotary shaft seals
• Flat round seals
• Dowty seals
• Silicone rubber seals, Viton (fluorocarbon seals)
• Polyurethane seals
• (Metric) Hydraulic seals (hydraulic cylinder seals & hydraulic ram seals)
• (Metric) Pneumatic seals
• Vacuum rubber seal

RUBBER GASKETS

A gasket is similar to the seal that prevents leakage between the two objects while under compression to seal high pressure under static conditions and to fill the void.

A lip seal gasket creates and retains a static seal amongst two relatively stationary parts. To prevent the passage of fluid, the gasket must be able to flow into and fill any irregularities within the mating surfaces being sealed, simultaneously being sufficiently resilient to resist extrusion under operating conditions.

As a custom gasket manufacturer, KPM offers all kinds of industrial gaskets applications. We have the in-house capability to test and have entire control over all aspects of gasket quality.

KPM has the certification for watertight gaskets used in drinking water applications commonly known as NSF 61 Gaskets.

Depending on the base properties such as high-temperature gasket or fire-resistant gasket the changes are made on the selection of the polymer, e.g., silicone rubber gasket, fluorosilicone gasket etc., Gasket materials are as diverse as the gaskets themselves, KPM can furnish from Natural Rubber to FKM for the global standards.

TROLLEY WHEELS

A polyurethane wheel tread reduces the force and vibrations during rolling, providing a well smooth steer. This wheel decreases the maintenance cost due to its self-cleaning ability.

Due to the multi-fold tread life, it can avoid the withering issue with the usual plastic wheel. The wheel tread possesses the noise-dampening ability along with its superb flow protection.

.
The NR based trolley wheel is used for high friction applications which will have better braking efficiency for heavy load and high-speed applications. The antistatic properties are enabled which will reduce the cotton or the dust deposition over the wheel which helps better productivity in textile equipment. Wheels can be produced in any material according to the requirement generally NR and PU casting is preferred the other materials are also possible for specific applications.

VALVE PARTS

KPM produces knife gate valve seats, wedge gate valve seats, butterfly valve seats, butterfly disc lining, loose liners, rubber-lined, butterfly bodies.

A butterfly valve seat is a type of flow control device, typically used to regulate o fluid flowing through a section of pipe. It requires good quality of resilient rubber seat. The rubber seat may either reinforced or without reinforced (loose liners)

KPM makes butterfly valve seats, bonded with steel, aluminium and bakelite. Other types are directly bonded with the body. The resilient seats should satisfy high mechanical properties, ageing properties, good swell properties and resilience with the higher end of purity to improve its working performance.

We have a wide range of elastomers/compounds to meet international standards. The other valve parts are knife gate valve seats, wedge gate linings, butterfly valve disc lining (disc encapsulation).

KPM’s Butterfly valve seats are having the following advantages,

Outstanding operational performance
High reliability
Extended service life
Low operational torque values.
Excellent sealing functions
Wide temperature range

NSF-61

ANSI-NSF-61 certified rubber gaskets and seals

Every gasket/seal application requires the right material, but those utilized in water treatment or processing and/or handling, and those that come in contact with, have undeniably more stringent requirements than most.

NSF / ANSI / CAN 61 (NSF-61) is a set of American standards founded by National Sanitation Foundation a global independent public health and environmental organization measures the amount of lead and other heavy metals and organic materials that are released into the water when the product is used.

NSF-61 material confirmation related to sanitary and potable water industry incorporates:

1) Section 6: Joining and Sealing Materials:

This includes O-rings, gaskets and various custom molded parts in materials such as EPDM, Silicone, NBR and more.

The American National Standards Institute (ANSI), that relates to water treatment and establishes stringent requirements for the control of rubber seals and ANSI-NSF-61 certified rubber gaskets that comes in contact with either drinking water or products that support the production of drinking water.

All components in contact with drinking water must meet the correct standards to ensure dangerous toxins are not leached. One of these benchmarks is chloramine resistance.

The standard includes many critical safety tests, including a tensile strength and elongation test, an accelerated aging test, a compression set test, a low temperature test, a hardness test, an immersion test.

In addition, a detergent/cleaner test, a bursting strength test, and several others at a continuous 60°C in different pH levels of water, to the more challenging chemical certification.

In all cases, KPM’s rubber part/compound is tested before and after exposure to a given fluid to determine whether anything has been leached out or extracted from the part.

KPM is one of few companies in India that works with NSF 61-rated materials.
Currently, we have certified our two of the mostly consumed compounds namely EPDM and NBR. Upon certified,

Similarly, our products are safe and cause no wellbeing-related harm on usage with contact to any drinking water applications.

Most importantly this standard certification is mandatory for supplying ANSI-NSF-61 certified rubber gaskets, seals and custom rubber parts to the USA and Canada in drinking water applications.

To learn more/To get our best quote on drinking water management applications, where our NSF/ANSI 61 certified gaskets, seals, wedge gate valves and other products can help with your next venture, contact our team today.

Proven In potable water-related applications

KPM’s certified NSF 61 NBR and NSF 61 EPDM serve well in numerous applications such as,

• Irrigation Seals
• Pump Diaphragms, Seals, Valves and Assemblies
• Wedge gate valves
• Water Filter Seals
• Faucet, Shower and Cartridge Seals
• Ballcock Diaphragms and Seals
• Valve Seats
• Flow Controllers
• Check Valves
• Spray Formers

RAW MATERIALS

Natural rubber (NR)

The only non-synthetic elastomer in wide use. Characterised by flexibility, strength, resilience and low-temperature resistance as well as excellent physical properties. Possessing good abrasion properties, NR is ideal for bonded rubber/metal products. Not suitable for petrol, grease, oil, and ozone.

EPDM

Versatile in use, very good flexibility, resistant to abrasion, resistant to wear and tear, Excellent weatherability, good high and low-temperature resistance, low gas permeability. Resistant to ozone, steam, water, alcohols, brake fluids. Can be used to protect against washing and spraying agents. Poor resistance to petroleum oils, solvents and mineral oils.

Temperature Range: -15°C to 135°C

Chloroprene Rubber (CR; Neoprene)

Good general-purpose elastomer, flame resistant to abrasion, robust dielectric strength with moderate oil, ozone, water, ageing and chemical resistance, good mechanical properties, Resistant to freons, high aniline points oils, mild acids. Not recommended for phosphate esters, ketones, and brake fluids.

Temperature Range: -15°C to 125°C.

Nitrile

Excellent resistance to petroleum products, excellent compression set; resistant to oil, water, silicone greases and oils. Highly resistant to abrasion and tearing, high temperatures. Not recommended for halogenated hydrocarbons, ketones, ozone and sunlight.

Temperature Range: -7°C to 107°C.

SBR

General-purpose elastomer, similar to natural rubber good adhesion to various substrates, good abrasion resistance, good resilience. Resistant to brake fluids, alcohols, water. Not recommended for solvents, oil/gas, sunlight.

Temperature Range: -18°C to 105°C.

Silicone

Best overall temperature Range of elastomers currently available. good insulation properties, odourless and tasteless, non-toxic, can be sterilized in accordance with foodstuffs regulations. Excellent resistance to dry heat, as well as, resistance to low temperature, brake fluids, high aniline point oils.

Resistant to seawater and corrosive salt solutions, not to be used in conjunction with steam, concentrated acids and alkali, swells strongly under the effect of aromatic solvents. Not recommended for some dynamic applications due to poor tensile strength, tear and wear resistance. Poor in petroleum oils and ketones.

Temperature Range: -23°C to 205°C.

Fluorocarbon (FKM; FPM; Viton)

Fluorocarbon has excellent resistance to high temperature and a broad range of chemicals. Permeability and compression set are excellent. Poor low – temperature properties, limited hot – water resistance and shrinkage.

Temperature Range: -50°C to 600°C.

Polyacrylate (ACM)

ACM (Acrylic rubber ) has good resistance to high temperatures, mineral oil, oxygen and ozone.

The water compatibility and cold flexibility are considerably worse than with NBR.

Temperature Range: – 15°C to +175°C.

Butyl rubber (IIR)

Butyl rubber (isobutylene – isoprene rubber or IIR) has a very low permeability rate, good electrical properties, poor short–term rebound, good resistance to heat, oxygen, ozone and many chemicals and solvents, good resistance to abrasion and tear propagation.

Temperature Range: – 20°C to +120°C.

Hydrogenated Nitrile (HNBR; HSN)

High resistance to heat, ozone and oil, good mechanical properties at high temperatures, excellent resistance to oxidation, wear and tear.

Temperature Range: -3°C to 150°C.

Chlorosulphated Polyethylene (CSM)

Flame–resistant, good electric strength, particularly recommended for exposure to sunlight, ozone, weather and oxidizing chemicals, poor tensile strength.

Epichlorohydrin (ECO)

Low gas permeability, very good low-temperature properties, good resistance to mineral oils, ozone and high temperatures.

Polyurethane (PU)

Polyurethane elastomers have excellent wear resistance and tear, high tensile strength and best flexibility with a high shore hardness of all the elastomers. Permeability is good and comparable with butyl, good resistance to oil, not resistant to hydrolysis.

Millable urethanes should not be confused with thermoplastic urethanes, which are generally harder, less flexible, and have slightly better wear resistance.

Temperature Range: -4°C to 80°C.

Fluorosilicone (FVMQ)

Fluorosilicone is silicone polymer chains with fluorinated side–chains for improved oil and fuel resistance. The mechanical and physical properties are very similar to those of silicone.

Temperature Range: -37°C to 175°C.

KPM Plasto Rubber Co.,
11/66 – E, Trichy Road, Ravathur Pirivu,
Kannampalayam (Post), Sulur,
Coimbatore – 641402,
Tamilnadu, INDIA

+91 422 268 0427
+91 422 268 0428
+91 98422 80429

info@kpmrubber.com

http://kpmrubber.com/

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