schuurpapier

Schuurpapier, also known as sandpaper, is an abrasive material used for smoothing, shaping, and finishing surfaces. It consists of a backing of paper, fabric, or film, onto which abrasive grains such as aluminum oxide or silicon carbide are bonded by resin or glue. The abrasive layer is designed to wear away gradually as it abrades the workpiece.

Grit size determines coarseness. Lower numbers are rougher and remove material quickly, while higher numbers are finer and leave smoother finishes. Common ranges include coarse (around 40–60), medium (80–120), fine (180–400), and very fine (600–1200). European and international standards (including P-numbers in some products) indicate grit size, though exact measurements can vary by manufacturer.

There are various types of Schuurpapier. Dry or standard variants use a paper backing and are suitable for general woodworking and metalworking. Wet-and-dry or waterproof variants have resin-bonded grains and a waterproof backing, allowing use with water or oil to reduce dust and clogging and to achieve a smoother finish.

Backings and forms vary: paper backings for flexibility and light-duty work, cloth backings for durability in heavy-duty tasks, and sanding sponges for contoured surfaces. Applications span woodworking, metal fabrication, plastic finishing, and automotive refinishing.

Usage tips include sanding with the grain for wood, using appropriate grit progression, and employing lubrication or water for wet sanding when needed. Safety considerations include eye protection, dust masks or respirators, and good ventilation. Proper storage and disposal of used sheets help minimize dust and environmental impact.