... price Foam rubber products mainly including foam rubber pipe(rubber foam tube,rubber foam tube)foam rubber batt,foam rubber board(foam rubber sheet),foam rubber pipe etc ... permeability perm-in (kg/m·s·pa)0.08 (1.16×10-13)ASTM E96 Procedure A DIN 52615Flame spread and ... /4", 1", 1-1/4", 1-1/2", 2" (6, 9, 13, 19, 25, 32, 40, 50)-Inside diameter, tubular formin ...