EPDM Peroxide-Cured O-Rings and Gaskets NSF-61

NSF-61 Approved Peroxide-Cured O-Rings and Seals

Ge Mao Rubber Industrial Co., Ltd.
Tel: +886-4-7810288 Fax: +886-4-7810289
https://www.fdao-ring.com
ask@gmors.com
No. 15, Kung Yeh East 4th Rd., Lukang, Chang Hua 505, Taiwan, R.O.C.

EPDM Peroxide-Cured O-Rings and Gaskets NSF-61 Peroxide-Cured NSF 61 O-Rings

Peroxide cured EPDM compounds exhibit a greater resistance to heat and chemicals as compared to EPDM compounds that are sulfur cured. Temperature tolerance of up to 150 degrees Celsius or 300 degrees Fahrenheit can be achieved with peroxide cured compounds. On the other hand, sulfur cured EPDM compounds allows for service temperatures of not exceeding 120 degrees Celsius. Peroxide curing for EPDM is undoubtedly the preferred option servicing in extended temperature environments.

Other benefits of peroxide cured EPDM compounds include stability at higher temperatures, lower compression set and resistance to aging.

Benefits of peroxide-cured epdm:

1. Greater tolerance for high temperature applications. Outstanding heat ageing.

2. Improved ageing resistance.

3. Compression set is lower.

4. Ability to resist oils and chemicals is improved.

5. Better resistance to discoloration.

Approval	Certification Authority	Certified Temperature Range	Compound Reference	Elastomeric Compound	Shore Hardness	Colour
BS6920	WRAS	Maximum 85°C	E6053AA	EPDM Peroxide Cured	Shore A (60±5)	black
BS6920	WRAS	Maximum 85°C	E7053AA	EPDM Peroxide Cured	Shore A (70±5)	black
BS6920	WRAS	Maximum 85°C	E9053AA	EPDM Peroxide Cured	Shore A (90±5)	black
BS6920	WRAS	Maximum 85°C	E7083AA	EPDM Peroxide Cured	Shore A (70±5)	black
BS6920	WRAS	Maximum 85°C	E8083AA	EPDM Peroxide Cured	Shore A (80±5)	black
BS6920	WRAS	Maximum 85°C	N8018AA	NBR Peroxide Cured	Shore A (80±5)	black
BS6920	WRAS	Maximum 85°C	N7018AA	NBR Peroxide Cured	Shore A (70±5)	black
ACS	CARSO		E7083AA	EPDM Peroxide Cured	Shore A (70±5)	black
KTW	DVGW		E7083AA	EPDM Peroxide Cured	Shore A (70±5)	black
W-270	DVGW		E7083AA	EPDM Peroxide Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	E7083AA	EPDM Peroxide Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	N7018AA	NBR Peroxide Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 60°C	N7041AA	NBR Sulfur Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	E7041AA	EPDM Peroxide Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	E7051AA	EPDM Sulfur Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	E7042AA	EPDM Peroxide Cured	Shore A (70±5)	black
NSF-61	NSF	Maximum 82°C	S7031AB	VMQ	Shore A (70±5)	rust