3M Acryl-Marine Putty Product no. 05962 White, 21 oz. Tube Designed specifically for the boat repair market. Recommended for filling pinholes, scratches and other surface defects on hulls. Its white color minimizes the possibility of color showing through the final coat as can happen when using colored putties beneath white paint. Other advantages include easy sanding, fast drying, spreads easily, and has low shrinkage.