The ability of Unsaturated Polyester Resins to wet and bond with various fillers allows for diverse reinforced applications. When mixed with glass fibers, these resins form strong, lightweight fiberglass reinforced plastics (FRP) used in boating, corrosion-resistant tanks, and bathtubs. Continuous filament winding creates pipe assemblies while sheet molding creates automotive body panels.

Carbon fiber and Kevlar reinforced unsaturated polyesters offer high strength-to-weight ratios for aerospace and marine components like propeller blades and radomes. Fiberglass hulls and decks for small ships can be sprayed or hand-laid. Aluminum, copper, or zinc particles impart conductivity for radar stealth applications.

Corrosion Resistant Laminates and Coatings

Unsaturated polyester resins form impervious, abrasion-resistant laminates and coatings with good chemical resistance. Tools, tanks, and processing equipment can be lined with these materials to prevent corrosion from acids, alkalis, and salts. Pigmented gel coats provide an attractive, glossy surface finish on FRP products.

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