Rubber washer

RUBBER WASHER

 

Square rubber washer, rubber seals , rubber gaskets

 

Normally flat rubber gasket size will are specified by ID, W, and H as below , or ID, OD(ID+2W), and H.

 

 

Square rubber gaskets size could be standard or be customized .

Pls leave your specification of rubber washers and quantity for quotation if you have any request , thank you.

 

RUBBER MATERIAL PROPERTY

 

Topseals's fluorocarbon (FKM, FPM) rubber gaskets are compatible with oils and gases, hydraulic oil and fuels. 

 

Topseals's hydrogenated nitrile (HNBR, HSN) rubber gaskets are very compatible with oils and gases. 

 

Topseals's ethylene propylene rubber (EPM, EPR, EPDM) rubber gaskets are compatible with solvents and other chemicals. 

 

Topseals's silicone (VMQ) rubber gaskets are very compatible with PFPE, cold water, and ozone. 

 

Topseals's polychloroprene rubber (CR) rubber gaskets are compatible with oils and gases.

 

Topseals's perfluoroelastomer ( FFKM) rubber washers are very compatible with hydraulic oil and fuels.

 

Topseals's nitrile rubber (NBR) rubber gaskets are very compatible with oils and gases. 

 

Topseals's fluorosilicone (FVMQ) rubber gaskets are very compatible with oils and gases.

 

 

RUBBER RAW MATERIAL PROPERTY COMPARISON

 

 

 

FFKM perfluoroelastomer compounds are has excellent high temperature resistance and chemical resistance as PTFE, but also retains the relevant properties of rubber elastomer. It can be used continuously at 260 ° C to 300 ° C and at a high temperature of 325 ° C in a short time. Such excellent performance makes it widely used in military industry, aerospace, semiconductor, medicine, electronics, chemical industry and other fields.

 

FKM compounds are widely used in chemical, automotive, aerospace and industrial applications, Fluoroelastomer (Viton®, FKM) offers a wide range of resistance to chemicals, oil and heat, with situational service life above 200°C, with Excellent mechanical properties. Good extrusion resistance. Chemical and heat resistant.

 

NBR offers relative low cost, good mechanical properties, and resistance to many common oils, fuels and lubricants. NBR has poor resistance to weathering, sunlight and ozone so it is best used in enclosed environments where parts are not exposed to the elements.

 

HNBR Hydrogenated versions of NBR (HNBR) have enhanced mechanical properties as well as greater thermal and chemical stability. Specific physical properties and chemical resistances vary by compound formulation.

 

Silicone are excellent seal materials for extreme temperature in static applications. Outstanding flex and fatigue life, very good for ozone and UV radiation, insulating properties, and physiologically neutral. silicones can be synthesized with a wide variety of properties and compositions.

 

PTFE with Best chemical compatibility, low friction, meets FDA, USDA and 3-A dairy requirements, excellent moisture resistant and good cryogenic capabilities down to -350° F. Could be applied in Seals, bushings, back-ups, guides, pads, plugs, rollers, spacers, o-rings, wear rings, washers.