SEALING MATERIALS

Operating Temperature : -30°C to +100°C

Commonly known as NITRILE or BUNA-N. Nitrile rubber is the sealing material most frequently used in Hydraulic & Pneumatic tems because of its excellent resistance to mineral oil based fluids, greases, water & hydrocarbon fuels. It has good physical characteristics such as abrasion resistance and good compression set. NBR is not suitable to Aromatic hydrocarbons, chlorinated hydrocarbons, automotive brakes fluids, and some fire resistant hydraulic fluids. Special Grades of NBR is withstand at -50°C

Operating Temperature : -30°C to +100°C

An improved version of nitrile butadiene rubber (NBR) is carboxylated nitrile butadiene rubber (XNBR). In this execution there are beside the sulfur bridges also carboxyl groups R-COO- on the double bond of the butadiene part. XNBR properties are similar to those of NBR polymers but they are characterized by improved abrasion behaviour in applications subjected to dynamic stress.

Operating Temperature : -30°C to +150°C

Hydrogenated nitrile butadiene rubber (HNBR) is widely known for its physical strength and retention of properties after long-term exposure to heat, oil and chemicals. HNBR has good heat resistance, oil resistance & resistance to number of aggressive chemicals. The material exhibits high mechanical strength and improved abrasion resistance. It also has superior resistance to weathering, ozone and hot air and very good resistance to technical oils, even in the presence of hydrogen sulphide and amines. HNBR elastomers have excellent resistance to common automotive fluids (e.g., engine oil, coolant, fuel, etc.) and many industrial chemicals.

Operating Temperature : -40°C to +220°C

FKM Rubber is commonly known by DUPONT trade name VITON. The main characteristics of FKM are that they are resistant to high temperatures & their chemical stability. They also display minimal weight loss in high vacuum & also, its permeability to gases is low. VITON is compatible to fire resistant Hydraulic fluids, hot oils, greases, hydrocarbon, chlorinated hydrocarbons & most organic acids, even at high concentrations and with / against a number of organic compounds. It has excellent resistance to hot water and to steam. FKM, however is not resistant to methanol, keytones, esters and ethers.  (ketones such as acetone and organic acids such as acetic acid.)

Specialty types include GLT and GF : automotive, oil exploration and special sealing.

Operating Temperature : -10°C to +300°C

Perfluoroelastomer (FFKM) is a very broad chemical resistance in a wide variety of media including acids, caustics, ketones, aldehydes, esters, ethers, methanol, solvents, sour gases, hydrocarbons, steam, hot water and mixed process streams along with excellent thermal resistance.

Operating Temperature : -10°C to +200°C

Aflas is a excellent heat resistance with continuous service temperature of 200°C It is outstanding chemical resistance with no or little deterioration even in contact with strong acids and bases at high temperature and high electrical resistivity of the order of 1015 to 1016 ohm cm. AFLAS is used in industrial fields where rubber components come into contact with harsh environments.

Operating Temperature : -55°C to +200°C

SILICON Rubber is characterized by high thermal resistance, good cold flexibility, good dielectric properties, and very good resistance to oxygen and ozone attack. The main advantage is that it retains flexibility at very low temperatures and can withstand continuous heating without hardening, making it suitable for low and high temperature applications. SILICON Rubber is characterized by high thermal resistance, good cold flexibility, good dielectric properties, and very good resistance to oxygen and ozone attack. The main advantage is that it retains flexibility at very low temperatures and can withstand continuous heating without hardening, making it suitable for low and high temperature applications.

Operating Temperature : -70 °C to +220°C

Fluorosilicone rubber is the common name for fluorovinylmethyl silicone (FVMQ) rubber. Fluorosilicone having a good high- and low-temperature properties of silicone with limited fuel and oil resistance and High tear strength. It is Improved resistance to compression set.

Operating Temperature : -20°C to +100°C

CR is commonly known as NEOPRENE Rubber. CR based compounds are characterized by excellent resistance to chemicals, ageing, weathering effects and ozone attack. Its resistance to swelling in mineral oils, greases and water is moderate. CR compound are not resistant to aromatics compounds such as benzene, toluene, chlorinated hydrocarbons, esters, ethers and ketones.

Operating Temperature : -40°C to +120°C

EPDM (ethylene propylene diene monomer rubber) elastomer has very good resistance to ozone, ageing and weathering. Hence it is best suited for extruded profile sections and sealing strips. It has good resistance to swelling in hot water, steam, washing liquids, oxidizing media, acids, bases, polar organic media, ketones, fire retardant hydraulic fluids & hydraulic brakes fluids. EPDM is not suitable for use in mineral based oils or hydrocarbons. But in non-mineral automotive brake fluids and phosphate esters, the swelling is minimal.

Operating Temperature : -40°C to +120°C

IIR elastomer’s permeability to gases and water vapour is low and it has good electrical insulation properties. It has good resistance to break fluids based on glycol, organic / inorganic acids / bases, hot water and steam up to 120°C It has very good resistance to weathering and ageing. Butyl Rubber is not suitable for use with mineral based oils and aromatic solvents.

Operating Temperature : -30°C to +80°C

NATURAL Rubber exhibits high mechanical strength and elasticity with very good low temperature characteristics. Because of its high mechanical strength, NR is frequently combined with fabric reinforcement for seals in applications where water is the hydraulic fluid. It has good resistance to acid and bases at low concentrations as well as alcohols.NR is not resistant to mineral oils and greases, fire resistant hydraulic fluids, aromatic, aliphatic, and chlorinated hydrocarbons.

Operating Temperature :  -50°C to +100°C

SBR has good resistance to inorganic and organic acids, as well as alcohols and water, and brake fluids based on glycol. SBR is not resistant to mineral oils, lubricating greases, petroleum, and aliphatic, aromatic and chlorinated hydrocarbons.

Operating Temperature : -10°C to +170°C

The properties of POLYACRYLIC Rubber are midway between nitrile and fluorocarbon rubber. They have excellent resistance to mineral oils, hypoid oils and greases up to 125°C They are resistant to ageing & flex cracking. ACM is characterized by poor mechanical strength and its resistance to water is poor.

Please Contact Our Technical Team.

Please Contact Our Technical Team.

Please Contact Our Technical Team.

Please Contact Our Technical Team.

Operating Temperature : -30°C to +100°C

Polyurethane material has extremely good mechanical properties such as high tensile strength, abrasion resistance, tear strength, extrusion strength and above all, good flexibility. . It performs well as a base material for Wiper seals, Flat rings, non-sealing products, Food grade, General purpose and custom moldings. PU has good resistance to swelling in mineral oils and greases, water, oil mixtures, and aliphatic hydrocarbons. PU is not resistant to polar solvents, chlorinated hydrocarbons, aromatics, brake fluids, acids and alkalis.

Operating Temperature : -40°C to +150°C

PU-X is a broad range of thermoplastic polyurethane (TPU). It can be extruded or injection molded to create a range of products. It performs well as a base material for hydraulic seals, Sealing product, U-seals, O’rings, Especially Earthmoving seals. PU-X having Very good hydrolytic stability, High heat resistance, low compression set at 100°C Low oil absorption, including good resistance against bio hydraulic oils, Good burst pressure properties even at high temperatures. PU-X is excellent rebound resilience and good oil and abrasion resistance. Capable of withstanding aggressive chemical substrates it can be used in a wide range of applications. PU-X is good all-round performer thermoplastic polyurethane (TPU).
VICAT Softening Point of PU-X is 175°C

Operating Temperature : -40°C to +130°C

PU-H is an Polyether Based Thermoplastic Polyurethane (TPU). It is Excellent hydrolysis resistance, low temperature performance, clarity and wide processing window for extrusion. It is used in Blown and flat die/cast film extrusion, Injection and blow molding; cable jacketing and profile extrusion. It performs well as a base material for Pneumatic seals, Hydrolysis (any items which come in contact with water), Pneumatic tubes that need to perform at high operating temperatures with good hydrolysis and heat resistance properties. PU-H is excellent hydrolysis resistance over a long period of time. VICAT softening point of PU-H is 145°C

Polypropylene is recommended for used in Injection molding processes where high impact strength is required. It is an ideal material to use in Industrial parts. Heat deflection temperature of polypropylene is 95°C Polypropylene contains antistatic agents that reduce static charge build-ups in products. It is used in contact with foodstuff, pharmaceuticals and drinking water.

Linear low-density polyethylene (LLDPE) is a narrow molecular weight distribution and optimum levels os antioxidants. It is an good flexibility, low warpage and good fluidity. It is used in contact with foodstuff, pharmaceuticals and drinking water.

Operating Temperature : Operating Temperature : -270°C to +80°C

UHMWPE is extremely resistant to a wide variety of substances. The material is almost totally inert, therefore it is used in the most corrosive or aggressive environments at moderate temperatures. Even at high temperatures, it is resistant to several solvents, except aromatic, halogenated hydrocarbons and strong oxidizing materials, such as nitric acid. Very high wear resistance, impact resistance, excellent resistance to internal pressure strength, resistance to environmental stress cracking, intrinsically self-lubricating, anti-adhesion, low temperature resistance and excellent chemical resistance. Compatibility tests between a product sample and the chemical environment are strongly recommended to verify satisfactory part performance, at the same conditions, for a period of time equal to the life time expected, at each new application. Even the substances classified with high attack or absorption frequently show good practical results.

Polyphenylene sulfide (PPS) is an organic polymer consisting of aromatic rings linked with sulfides.  Polyphenylene sulfide is an engineering plastic, commonly used as a high-performance thermoplastic. PPS has not dissolve in any solvent at temperatures below approximately 200 °C

Operating Temperature : -40°C to +140°C

Polyoxymethylene (POM), also known as acetal, polyacetal. Commonly known by DELRIN, KEPITAL.

Operating Temperature : -20°C to +220°C

A polyamide is a macromolecule with repeating units linked by amide bonds. Commonly known by DuPont trade name ZYTEL. Glass filled and MoS2 filled Nylon

Operating Temperature : Up to +315°C

Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures. PEEK have very high tensile strength is 90–100 Mpa. Because of its robustness, PEEK is used to fabricate items used in demanding applications, including bearings, piston parts, pumps, HPLC columns, compressor plate valves, and cable insulation. It is one of the few plastics compatible with ultra-high vacuum applications.

Operating Temperature : -200°C to +260°C

PTFE is commonly known by Du Pont trade name TEFLON. PTFE is characterized by its outstanding resistance to chemicals and low co-efficient of friction combined with a very wide working temperature range. Only liquid alkaline metals and some fluoride compounds can attack PTFE at high pressures and temperatures. Depending on the temperature and the load, PTFE has a tendency to creep or cold flow. For this reason, Max Spare does not use pure PTFE for sealing components in hydraulic systems, with the exception of back ups for O’rings. For the majority of sealing tasks, only filled PTFE materials are used, reinforced with materials such as Bronze, Glass, and Graphite & Carbons.

Operating Temperature :  -30°C to +100°C

Hytrel is a thermoplastic polyester elastomer of DuPont. Hytrel thermoplastic polyester elastomer include mechanical and physical properties such as exceptional toughness and resilience. Flexibility at low temperatures and good retention of properties at elevated temperatures. Special grades of Hytrel are heat stabilized, flame retardant, food contact compliant.

Operating Temperature :  -20°C to +120°C

The wear strip is manufactured using a polyester fabric reinforced polyester resin material addictive PTFE or graphite and proven to be compatible with a wide range of fluids, including mineral oils, water based fluids and phosphate esters, to provide wear strip is available in wide range metric sizes. Manufactured to very tight tolerance and providing bearing solutions for reciprocating, oscillating and slow rotary movement applications.

Operating Temperature : -200°C to +260°C

It is high compressive strength, excellent wear resistance, very low cold flow, and good thermal conductivity.

Operating Temperature : -200°C to +260°C

High compressive strength, better wear resistance & excellent chemical resistance.

Operating Temperature : -200°C to +260°C

High compressive strength, better wear resistance and good thermal conductivity.

Operating Temperature : -200°C to +260°C