Typical Properties of Style RE42EPT Closed Cell EPDM Sponge

Description: Style RE42EPT closed cell EPDM sponge can be utilized in many indoor and outdoor gasketing applications that require a temperature range of -70°F to 220°F and has a high intermittent temperature of 250°F. Closed cell EPDM sponge offers excellent resistance to acid, alkali, ozone, and oxidation. RE42EPT closed cell EPDM passes the flammability specification of FMVSS-302 at .188" or thicker. RE42EPT EPDM meets the physical property requirements of ASTM D 1056-07 2A1/2A2.

Style RE42EPT closed cell EPDM is a medium density material, which is also available in a soft density (RE41EPT). Style RE42EPT can be supplied in rolls ranging from, as narrow at 1/4" wide, up to 48" wide. Atlantic Gasket has the ability to supply RE42EPT with or without pressure sensitive adhesive. Style RE42EPT EPDM closed cell sponge can be die-cut or waterjet cut to your specific requirements.

Polymer
EPDM

Specifications
ASTM D 1056-68 RE41/42
ASTM D 1056-07 2A1/2A2
ASTM D 1056 Suffix’s C1, F2, M
ASTM D 6576-07 TYPE II B, C SOFT/MEDIUM
MIL-R-6130C II-B/C SOFT MEDIUM
MIL-C-3133C MIL STD 670 B RE3
GMW 15473 CLASS I TYPE IV
WSK-M2D419-A TYPE 2 / 3
TSM 1501G 2A1 /2A2

Physical Property Test Method Unit of Measure Result
COMPRESSION DEFLECTION ASTM D 1056 psi
kPa		 6 +/- 2
41.3 +/- 13.8
DENSITY ASTM D 3575 pcf
g/cm3		 5 +/- 1
.08 +/- .016
COMPRESSION SET ASTM D 1056 % (MAX) 40
WATER ABSORPTION ASTM D 1056 % (MAX) 5
TENSILE STRENGTH (AVERAGE) ASTM D 412
(DIE A)		 psi
kPa		 60
413.7
ELONGATION (AVERAGE) ASTM D 412
(DIE A)		 % 150
TEAR STRENGTH (AVERAGE) ASTM D 624
(DIE c)		 lb/in
kN/m		 6.8
1.2
CD CHANGE AFTER OVEN AGING ASTM D 1056 % +/- 30
RESILIENCE ASTM D 2632 % 45
LOW TEMPERATURE N/A °F
°C		 -70°F
-56°C
HIGH TEMPERATURE N/A °F
°C		 220°F
104°C
HIGH INTERMITTENT N/A °F
°C		 250°F
121°C
COLOR N/A N/A BLACK

Unique Features:
  • Has a Thermal conductivity of .30 BTU-in/hr-FT2 F
  • Meets the physical property requirements of ASTM D 1056 RE41/42

CLOSED CELL NEOPRENE RESISTANCE TO
ACID EXCELLENT
ALKALI EXCELLENT
GASOLINE AND OIL POOR
AROMATIC HYDROCARBONS FAIR
OZONE EXCELLENT
KETONES GOOD
CHLORINATED SOLVENTS POOR
OXIDATION EXCELLENT












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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