MATERIAL

Expanding polyethylene closed cell, cross linked. ( V Grade )

Density		33Kg/m3
Water Absorption by weight (max)	1 Day 7 Days 14 Days 28 Days	< 0.1% vol < 0.3% vol < 0.4% vol < 0.5% vol
Recommended operating temperature range (dc)		- 70 min +105max
Compression stress-strain characteristics.	25% 40% 50% 60%	40 kPa 75kPa 115kPa 175kPa
Elongation of break		135%
Tensile strength		455 kPa
Thermal Conductivity	Tested mean temp of 10' C	0.040 W/m.k
Chemical Resistance	Weathereing Ozone Ultra Violet Fuels Acids Alkali Ageing Solvents	V.Good Good Good Not Good Good Good Good Good

Compression Set s/s thickness

72hrs 50% compression 23'C 1/2 hr recovery 48hrs 20% compression 23'C 1\2 hr recovery

27 % set 7 % set

 

POLYMER BASIS.

EPDM/Neoprene closed cell, cross linked. ( R1025 )

Specification:	ASTM D-1056-84 ASTM D-1056-91 SAE J-18 NF-R 99-211	RE42-B2,C 2A2-B2,C   2CO8,B3,C2
Density	Kg, m3 average	100-150 Kg
Water Absorption	by weight (max)	10%
Temperature range	Low-High C: High Intermittent	-56 +70 +95
Compression deflection	25% compression kPa	35-63
Compression set (average)	ASTM D-1056 13mm sample compressed 50% 22hrs at 20'C and 24 hrs recovery.	15-25%
Elongation to break %		150%
Tensile strength	KN/m3	300mm
Heat ageing	7 days at 70'C lineal shrinkage (max)	5%
Chemical resistance	Weathering Ozone Ultra Violet Oils Acids Alkali Ageing	V Good Excellent V Good Not Good Good Good Good
Flammability		MVSS-302