Black Natural Rubber Gasket

Black Natural Rubber Gasket

Black natural rubber gaskets are cut from rubber sheets or mould pressing. Any sizes and shapes can be produced. The hardness of natural rubber gasket ranges from 40 to 60 durometer, Shore A. Die cut natural rubber gaskets are generally tan or black in color with the exception of our premium grade “red” gum natural rubber, which is used when an optimum combination of tear and abrasion resistance are required. Natural rubber gaskets are available with or without pressure sensitive adhesive backing.

Model:KXT 1700

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Product Description

Style KXT 1700N Pure Natural Rubber Gasket

Black natural rubber gaskets provide superior dynamic sealing. They have a low level of damping and good low temperature properties,

and mate well with metal surfaces. Natural rubber (NR) seals also resist tear and abrasion, and can resist shear and compression

for long periods in the absence of tension



 Have good resistance to moderate chemicals, dry organic acids
 Excellent water resistant and tear resistant

 Good abrasion resistance, high elasticity
 High tensile strength

 High elongation

 Good recovery., etc



 Alcohols, ketones and aldehydes

 Moderate chemical industries

 Wet or dry organic acids

 Weak acid and alkali

 Chemical tubing

 Shock absorber

 Ammonia., etc


Natural rubber Properties


Natural rubber

Test Method




Specific gravity




40°-80° Shore A

ASTM D2240

Tensile strength

18 MPa (min)


Elongation at break

500 % (min)



Normal or custom


Tear strength

15 N/mm

ASTM D 624

Low temperature resistance


ASTM D1329

Temperature range

-40°C to +70°C

ASTM D2000


Key:  = Excellent ,  = Good,  = Fair, X = Not Recommende

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