Natural Rubber “Dust Cloth” Washer

SKU: WASHER-SM157

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PROPERTIES	TEST METHOD	VALUES FPS UNITS	TEST METHOD	VALUES METRIC UNITS
SPECIFIC GRAVITY	DIN 53508	1.10±0.05	ASTM D297	1.10±0.05
HARDNESS	DIN 53505	40 ± 5 SH A	ASTM D2240	40 ± 5 SH A
TENSILE STRENGTH ( MIN )	DIN 53504	2350 PSI	ASTM D412	165 KG/CM2
ELONGATION AT BREAK ( MIN )	DIN 53504	600%	ASTM D412	600%
ABRASION RESISTANCE ( MAX )	DIN 53516	120 MM3	ASTM D5963	120 MM3
COMPRESSION SET (70ºC/24 HRS/25% COMPRESSION) (MAX)	DIN 53517	30%	ASTM D395 METHOD B	30%
TEAR RESISTANCE ( ANGULAR ) MIN	DIN 53515	224 LBS/INCH	ASTM D624	40 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 / – 15		+ 10 / – 15
— ELONGATION AT BREAK (%)		+ 10 / – 15		+ 10 / – 15
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		FAIR	ASTM D 1149	FAIR
— DILUTE ACIDS AND BASES		GOOD		GOOD
— CONCENTRATED ACIDS AND BASES		NOT RECOMMENDED		NOT RECOMMENDED
— OILS		NOT RECOMMENDED		NOT RECOMMENDED
— SOLVENTS		NOT RECOMMENDED		NOT RECOMMENDED
TEMPERATURE RANGE		-30º TO + 70 ºC		-30º TO + 70 ºC

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