EPDM (NSF 61) O-ring, Size AS568-009 I.D 7/32, O.D. 11/32, Width 1/16
Ethylene-propylene compounds are prepared from ethylene and propylene (EPM) and usually a third monomer (EPDM). These compounds are used frequently to seal in brake systems, and for sealing hot water and steam. Ethylene propylene compounds have good resistance to mild acids, detergents, alkalis, silicone oils and greases, ketones, and alcohols. Ethylene Propylene has gained wide seal industry acceptance for its excellent ozone and chemical resistance properties and is compatible with many polar fluids that adversely affect other elastomers. The NSF 61-Standard is used to establish minimum requirements for the control of potentially harmful contaminants leaching into drinking water as a result of water interacting with the faucet components. Rubber compounds submitted to the NSF go through rigorous testing to determine if these standards are met. For more information on this standard refer to the NSF Web Site.	Temperature Range (dry heat)
	low	high
	-60 F -51 C	300 F 149 C
	Application Advantages
	excellent weather resistance good low temperature flexibility excellent chemical resistance good heat resistance
	Application Disadvantages
	poor petroleum oil and solvent resistance
	Dimensions CS x ID
	» 1/16" X 7/32" » 0.070" X 0.208" » Metric 1.780 X 5.28 (Millimeters)
Primary Uses	Specialized Applications
O-rings, rubber seals and custom molded rubber components for: Water system seals, faucets, etc. Brake systems Ozone exposure applications Automotive cooling systems General Industrial Use	glycol-based brake system seals FDA approved applications NBR NSF standard 61 for potable water applications NBR WRc, KTW water applications