Full definition
Polychloroprene compound specifically formulated for harsh marine environments: continuous saltwater exposure, intense UV radiation, ozone from sea air, and wide temperature cycling. Formulation includes enhanced UV stabilizers, increased antiozonant protection, and marine-grade adhesion promoters. Properties: hardness 40-70 Shore A, excellent ozone/UV resistance (no cracking after 1,000+ hours accelerated exposure), good saltwater resistance (minimal swelling/degradation), inherent flame retardancy, and good abrasion resistance. Per MIL-R-6855 (military rubber sheet), MIL-C-19656 (marine cable), or equivalent marine specifications. Temperature range: -30 to +100°C. Applications: boat fender strips and bumpers, hatch and porthole seals, underwater camera housing gaskets, offshore equipment gaskets, dock fender pads, marine cable jacketing, buoy construction, and deck/engine room flooring. Available as solid sheet (1.5-25 mm), foam (closed-cell for buoyancy and insulation), and die-cut parts. Marine-grade CR outperforms NR and SBR in saltwater longevity by 3-5x. Must be bonded with marine-grade adhesives (water-resistant, UV-stable).