DAP Waterproof Patching Compound White Exterior He

Updated October 15, 2026

Model: 18787 DAP Weatherproof Patching Compound is formulated with innovative Weather Max Technology for long-lasting, all weather protection. Patching compound provides exceptional weatherproof protection that prevents discoloration, cracking and crumbling. Tough hydrophobic surface provides a waterproof repair that won't swell, soften, blister or breakdown. Weatherproof Patching Compound is mold, mildew and algae resistant making it perfect for areas with continuous exposure to the elements. Strong multi-material adhesion to tough porous and non-porous materials making it ideal for exterior applications such as the installation, finishing or repairing of fiber cement siding, PVC trim board, vinyl siding, metal, composite, concrete, brick, wood and more. Weatherproof Patching Compound provides superior strength and adhesion for exterior repairs and projects.

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