Typical Properties of Style C43NBR Closed Cell Nitrile Sponge

Description: Style C43NBR closed cell Nitrile sponge is suitable for indoor and outdoor gasketing applications that require a service temperature of -40°F to 250°F. Closed cell Nitrile sponge offers excellent oil resistance and also has excellent UV resistance. C43NBR closed cell Nitrile sponge passes the flammability specification of FMVSS-302. C43NBR closed cell Nitrile sponge meets the physical property requirements of ASTM D 1056-67 SBE43.

Style C43NBR closed cell Nitrile is a firm density material, which is also available in a soft density (C41NBR) and a medium density (C42NBR). Style C43NBR can be supplied in rolls ranging from, as narrow at 1/4" wide, up to 42". Atlantic Gasket has the ability to supply C43NBR with or without adhesive. Style C42NBR Nitrile closed cell sponge can be fabricated by die-cutting or waterjet cutting to meet your exact requirements.

Polymer
NITRILE BUTADIENE (NBR)

Specifications
ASTM D 1056-67 SBE43
ASTM D 1056-07 2B3
ASTM D 1056 Suffix’s F1, M

FLAMMABILITY SPECIFICATIONS
FMVSS-302 PASS

Physical Property Test Method Unit of Measure Result
Compression Deflection @25% ASTM D 1056 psi
kPa		 11 +/- 2
75.85 +/- 13.75
DENSITY ASTM D 1056 pcf
g/cm3		 10
.160
WATER ABSORPTION ASTM D 1056 % (MAX) 5
TENSILE STRENGTH (MIN) ASTM D 412
(DIE A)		 psi
kPa		 175
1206
ELONGATION (MIN) ASTM D 412
(DIE A)		 % 175
SERVICE TEMPERATURE RANGE N/A °F
°C		 -40°F to 250°C
-40°F to 121°C
CD CHANGE AFTER OVEN AGING ASTM D 1056 % +/- 30
COLOR N/A N/A BLACK

Unique Features:
  • 100% pure Nitrile rubber closed cell sponge
  • Wide temperature range

This information is furnished as a guide for selecting materials. Atlantic Gasket Corp. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining suitability of material for a particular application.

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