Infinity Bond POLYFILL 1050 Low Shrink Polyester Marine Putty

Low Shrink Polyester Marine Putty & Radius Compound for Bonding Applications Infinity Bond POLYFILL 1050 is a low shrink polyester marine putty and radius compound engineered to reduce air voids, minimize print-through, and improve laminate consistency in demanding marine bonding applications. Its low exotherm formulation helps reduce shrinkage and gel coat stress during curing, making it ideal for tight radii, transitioning style lines, and fiberglass reinforced plastic (FRP) assemblies where reliable bonding performance and cosmetic quality are critical. Designed for boat builders, marine fabricators, and composite manufacturers, POLYFILL 1050 provides reliable adhesion, excellent vertical stability, and efficient processing for marine assembly and production environments. Key Features of POLYFILL 1050 Marine Putty & Radius Compound Low Shrink Formula: Minimizes shrinkage and print-through for smoother, more consistent laminate finishes. Low Exotherm Performance: Reduces heat buildup during curing to help minimize gel coat stress, cracking, and surface blemishes. Excellent Radius Compound Performance: Flows smoothly into tight radii, corners, style lines, and complex marine contours. Strong FRP Bonding: Provides reliable adhesion for fiberglass reinforced plastic (FRP) bonding and composite assembly applications. Vertical Surface Stability: Maintains excellent hold on vertical surfaces without excessive sagging or movement. Reduces Finish Work: Helps minimize sanding, repairs, and production rework for improved manufacturing efficiency. Technical Specifications Series: POLYFILL 1050 Type: Marine Putty Chemistry: Polyester Liquid Adhesive Gel Time: 18 - 24 Minutes Reaction Time: 16 - 30 Minutes Fixture Time: 34 - 54 Minutes Viscosity: 720,000 - 960,000 cps @ 2 RPM 90,000 - 140,000 cps @ 20 RPM Peak Exotherm: 200 - 250°F (93.3 - 121.1°C) Color: Tan Odor: Styrene Texture: Smooth Weight: 10.2 lbs/gallon Tensile Elongation: 2% Tensile Strength: 1,620 psi Flexural Strength: 2,160 psi Heat Deflection: 165°F (74°C) Shore D Hardness: 75 - 85 Package Size: 5-Gallon Pails Shelf Life: 6 Months Note: Typical physical properties @ 75°F (24°C). Recommended Applications Filling tight radii, corners, and transitioning style lines in boat molds and fiberglass laminates Bonding fiberglass reinforced plastic (FRP) components and composite assemblies Bedding marine core materials and structural laminate sections Vertical surface bonding and radius filling applications General marine bonding, assembly, and fiberglass fabrication Marine laminating applications requiring low shrink and low exotherm performance