Rubber Grades

S.No	Type of Rubber Compound	Code	Shore Hardness
1	Natural Soft (White Rubber)	ARPL 535	35± 5° " A"
2	Natural Soft Rubber	ARPL 555	55± 5° " A"
3	Natural Semi Ebonite	ARPL 565	65± 5° " D"
4	Natural Ebonite	ARPL 580	80± 5° " D"
5	Neoprene Hard-NSH	ARPL 575NSH	75± 5° " D"
6	Super Neoprene Hard-SNH	ARPL 670SNH	70± 5° " D"
7	Neoprene Hard-Special	ARPL 570NH	70± 5° " D"
8	Neoprene Soft	ARPL 565NS.	65± 5° " A"
9	Butyl Soft	ARPL 555BS	55± 5° " A"
10	Hypalon	ARPL 560 H	60± 5° " A"
11	Nitrile Soft	ARPL 560 N	60± 5° " A"
12	EPDM	ARPL 560 E	60± 5° " A"
13	TRIFLEX Rubber	ARPL 560 T	60± 5° " A"
14	Natural Soft Rubber-Pulley Lagging	ARPL 565 PY	65± 5° " A"
15	Natural Ebonite-ACC	ARPL 565 ACC	65± 5° " D"
16	Low Ca,Mg,Si Ebonite	ARPL 575 CM EB	75± 5° " D"
17	Neoprene –ACC	ARPL 565N ACC	65± 5° " D"
18	Chloro-Butyl	ARPL 560 CB	60± 5° " A"
19	Bromo-Butyl	ARPL 560 BB	60± 5° " A"
20	Silicon Food Grade	ARPL SI 5060	55± 5° " A"