Carbonoxylated Nitrile
(XNBR)

Trade Name(s):

Carboxylated Nitrile

XNBR

ASTM D1418 Designation

XNBR

Standard Colour

Black

Description

Carboxylated Nitrile is Nitrile with a carboxyl group added to the formulation.

Key Uses(S):

XNBR is mainly used for the following applications: Hoses, rubber belts, sealing parts, special purpose articles in oil well and reciprocating oil seals. This material is also ideal for rubber seals, gaskets, O-rings, roll covers, shoe soles, varieties moulded parts for shoe heels. It is specifically used for modification of the adhesives and epoxy resin.

Temperature Range:

Standard Compound: -30°C (20°F) to 150°C (302°F)

Hardness (Shore A):

50 TO 90

Features

The carboxyl group is added to significantly improve the abrasion resistance of NBR while retaining excellent oil and solvent resistance. XNBR compounds provide high tensile strength and good physical properties at high temperatures.

Limitations

is often specified for dynamic applications. However, for new applications Hydrogenated Nitrile is preferred over Carboxylated Nitrile. Not suitable for Brake fluids, Ketones, Ozone or weathering, Phosphate esters or Strong acids.

Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals (UK) Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.

Key Information

ES REF	Colour	Temp Range	Shore	Notes	Data Sheet
XNBR70	BLACK	-30°C to +150°C	70	Mostly used for hoses, rubber belts and sealing parts. It can be used for special purpose articles in oil well, reciprocating oil seal, rubber seal, gaskets, O-rings, roll covers, shoe soles, varieties moulded parts for shoe heels. XNBR is ideal for modification of the adhesives and epoxy resin.	XNBR70