CEJ’s Elastomers used in expansion joints and rubber pipe

Note: This listing is only a general guide. Specific elastomer compounds produced by specific manufacturers may have different properties.

Rating Scale code: A: Excellent B: Good C: Conditional D: Poor X (Contact Manuf.)
Material Designation		Common Name (Chemical Group Name)	Elastomer physical and chemical properties comparison
ASI/ASTM D1418-77	ASTM D-2000 SAE J-200	Common Name (Chemical Group Name)	Alkali Conc. Animal & Veg. Oil, Chemical Water	Oxygenated Hydro. Lacquers, Oil & Gasoline, Alkali, Dilute	Acid, dilute acid, Conc. Aphtic Hydro. Aromatic Hydro	ELE Insulation Water Absorp Radiation Swelling in Oil	Rebound-Cold Comp.Set Tensile Strength Dielectric Str.	AbrasionImpermeability Dynamic Rebound-Hot	HeatCold Flam Tear	Ozone Weather Sunlight Oxidation
CR	BC, BE	Neoprene Choloroprene	BCBD	BBDD	BBDD	BBBC	BBCB	BCBB	BBBB	BBAB
NR	AA	Gum rubber Polyisoprene, Natural	BCXX	XDDB	XDDB	DABB	AABA	AACA	BDBC	BDCD
IR	AA	Natural Rubber Polyisoprene, Synthetic	BCXX	XDDB	XDDB	DABB	AABA	ACCA	BDBC	BDCD
IIR	AA	Butyl Isobutene-isoprene	BABB	BDCB	BDCB	DBBB	BBCD	BCAB	BDBB	ABBA
CIIR	AA, BA	Butyl, chloro Chloro-Isobutene-Isoprene	BABB	BDCB	BDCB	DBBB	BBCD	BCAB	BDBB	ABBA
NBR	BF, CK, CH	Buna-N/Nitrile Nitrile-Butadiene	BCBD	BBCD	BBCD	BBBD	DBBB	BBBB	CDCB	BDCC
SBR	AA	SBR/GRS/Buna-S Styrene-Butadiene	BCXC	BDDB	BDDB	DABB	BBBB	BBCB	CDCB	CDCD
CSM	CE	Hypalon* Chloro-sulfonyl-polyethylene	BABB	BBDD	BBDD	BBBC	BCCC	BCBB	CBBB	AAAA
FKM	HK	Viton/Fluorel*	BAAD	BADD	BADD	ABBC	BBAC	BBBB	CACA	AAAA
EPDM	BA, CA, DA	EPDM Ethylene-propylene-diene-terpolymer	BABA	ADCA	ADCA	DAAA	ABBA	ABBB	BDBA	AAAA
AFMU	————-	Teflon/TFE/FEP Fluoro-Ethylene-polymers*	AAAA	AAAA	AAAA	ACAX	XXXX	XXXB	XXXA	AAAA
SI	GE	Silicone	BBBD	CXDC	CXDC	CBBA	BDCA	ADCD	CCAA	AAAA

*Registered trademark of E.I. DuPont de Nemours & Co.

**Registerd trademark of 3M companies