Full definition
A flat slab of vulcanized elastomer produced by calendering (passing between heated rolls for thin gauge, 0.5-6 mm) or compression press curing (for thicker gauge, 6-50 mm) in continuous or batch processes. This is the most versatile form of industrial rubber, serving as raw material for die-cut gaskets, fabricated parts, flooring, linings, and protective covers. Material options: NR (best abrasion/tear), SBR (most economical), NBR (oil-resistant), EPDM (weather/steam-resistant), neoprene CR (balanced properties), silicone VMQ (extreme temperatures), and PU (maximum abrasion). Standard thicknesses: 1.5, 2, 3, 4.5, 6, 8, 10, 12, 15, 19, 25, and 50 mm. Standard roll widths: 1,000, 1,200, and 1,500 mm. Surface finish: smooth (standard), textured (diamond, coin, ribbed — for anti-slip), or fabric-impressed (from the mold release). Optional: fabric reinforcement (1-2 ply nylon, polyester, or aramid for dimensional stability and higher tensile). Insertion type: fabric layer between rubber layers. Hardness: 40-80 Shore A typical. Per ASTM D2000 material classification. Quality: verify hardness, thickness tolerance (±0.2-0.5 mm), and tensile/elongation at incoming inspection.