Premium Grade NR/SBR Washer

SKU: WASHER-SM101

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PROPERTIES	TEST METHOD	VALUES FPS UNITS	TEST METHOD	VALUES METRIC UNITS
SPECIFIC GRAVITY	DIN 53508	1.35±0.05	ASTM D297	1.35±0.05
HARDNESS	DIN 53505	40 ± 5 SH A	ASTM D2240	40 ± 5 SH A
TENSILE STRENGTH ( MIN )	DIN 53504	713 PSI	ASTM D412	40 KG/CM2
ELONGATION AT BREAK ( MIN )	DIN 53504	250%	ASTM D412	250%
COMPRESSION SET (70ºC/24 HRS/25% COMPRESSION) (MAX)	DIN 53517	40%	ASTM D395 METHOD B	40%
TEAR RESISTANCE ( ANGULAR ) MIN	DIN 53515	112 LBS/INCH	ASTM D624	20 KG/CM
CHANGE IN PROPERTIES AFTER
HEAT AGEING FOR ( 72 HRS. AT 70 ºC )			ASTM D573
— HARDNESS (PTS)		+ 5 (MAX)		+ 5 (MAX)
— TENSILE STRENGTH (%)		+ 10 / -25		+ 10 / -25
— ELONGATION AT BREAK (%)		+ 10 / -25		+ 10 / -25
VOLUME SWELL : AT 70ºC FOR 72 HRS			ASTM D 471
IN IRM OIL NO.1		NOT RECOMMENDED		NOT RECOMMENDED
IN IRM OIL NO.2		NOT RECOMMENDED		NOT RECOMMENDED
IN IRM OIL NO.3		NOT RECOMMENDED		NOT RECOMMENDED
CHEMICAL RESISTANCE
— OZONE		NOT RECOMMENDED	ASTM D 1149	NOT RECOMMENDED
— DILUTE ACIDS AND BASES		NOT RECOMMENDED		NOT RECOMMENDED
— CONCENTRATED ACIDS AND BASES		NOT RECOMMENDED		NOT RECOMMENDED
— OILS		NOT RECOMMENDED		NOT RECOMMENDED
— SOLVENTS		NOT RECOMMENDED		NOT RECOMMENDED
TEMPERATURE RANGE		-20º TO + 70 ºC		-20º TO + 70 ºC
COLOUR		BLACK

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