How To Choose Sponge Sandpaper？

Sponge sandpaper consists of a base material, an abrasive, and a binder. The basic materials for a sponge sandpaper roll for furniture production are Velcro and paper. The paper tape base uses specially treated high-strength paper as sponge sandpaper. Paper-based sponge sandpaper is 1/3-2/3 lighter than fabric-based sponge sandpaper. The paper base is relatively stiff and can be buffed to give it a high-gloss finish. Paper-based sponge sandpaper for fine and ultrafine grinding. Velcro tape bases have higher strength than paper tape bases and are less sensitive to temperature and humidity than paper tape bases.

Coarse grinding, large plasticity, large grinding surface, coarse grain size, avoiding chipping, soft workpiece, etc. Fine grinding is used for fine grinding and hard workpieces. The abrasive is bonded to the tape base by an adhesive. The adhesive should have strength, elasticity, heat resistance, water resistance, etc. Commonly used adhesives are animal glue and synthetic resins. Animal glue is not water-resistant, and synthetic resin has good water resistance. The waterproof sponge sandpaper uses water-resistant synthetic resin as the base rubber and composite glue for strict waterproof treatment. According to the effects of the tape base, abrasive grains, and binder, the appropriate tape base, abrasive grains, and binder can be selected in combination with the processing objectives and process technical requirements.