A Basic Guide to Sanding Sponge

Progress has been made in the types, backing, bonding agent, and techniques of the abrasive substances – abrasive paper. Waterproof sand paper, dry sand paper, sanding sponge have been widely used in the furniture manufacture and achieved good results in workpiece surface with high efficiency and low costs. The quality of finished household products is inseparable from grinding techniques. Sanding sponge is a major tool in grinding process.

Sanding sponge is a kind of banding tool that attaches abrasive substance to paper backing and cloth backing for grinding and polishing. sanding sponge with paper backing is harder than cloth backing and is used in precision grinding to achieve bright and clean surfaces. While sanding sponge with cloth backing has a stronger intensity and is less sensitive to temperature and humidity, it is much more durable. Abrasive grains that are frequently used in furniture are aluminum oxide, silicon carbide, zirconia alumina, garnet, etc. While handmade sand paper uses glass sand as abrasives. All these abrasives have their distinctive features.

Generally speaking, choice of the abrasive substance – sanding sponge is based on the area, hardness, and grinding types of grinding surface. The bonding agent that attaches the abrasive grains is intense, elastic, heat-resisting, and waterproof. So far, two kinds of bonding agent have been used frequently, namely, animal glue and synthetic resin. Waterproof sanding sponge adopts synthetic resin that is water-repellent. Depending on the joint efforts of backing, abrasives, and bonding agent and proper choice, an ideal grinding effect can be achieved.

Author: Liwei Chu
Copyright: iAbrasive.com--Abrasives & Diamond Tools Market