Gerko Double-Sided Sanding Sponges are perfect for manual sanding and matting edges and contours that can't be handled by machines. Ideal for contoured surfaces, these sponges prevent edge sanding through and deliver an excellent surface finish. The thick foam texture absorbs hand pressure, preventing marks and deep scratches common with harder abrasives. Types and Uses: Sponge FINE - BROWN (Grit P320-500): Ideal for sanding electrophoretic coatings and old paintwork Perfect for sanding and primer preparation Sponge SUPERFINE - GREEN (Grit P600-1000): Best for sanding electrophoresis coatings and old varnish layers Ideal for sanding primers before basecoat application Sponge MICROFINE - BLUE (Grit P1000/1500): Perfect for preparing varnished surfaces Excellent for matt finishing of clear coats Key Benefits: Long-lasting: Lasts 3x longer than conventional scouring pads. Extra Durable: Saves money in the long run. Variety: Available in 3 versions for different fine sanding needs. Uniform Finish: Ensures a smooth, clog-free sanding appearance. Versatile: Can be used wet or dry, with the best results from dry use. Flexible: Follows surface irregularities and contours. Upgrade your sanding game with Gerko Double-Sided Sanding Sponges for a flawless finish every time.