We all know that the sponge sandpaper sanding process has the characteristics of good surface quality, production efficiency, and low production cost. Therefore, sponge sandpaper is widely used in furniture production, among which 3m sponge sandpaper is favored by consumers. Below, we will introduce what 3m sponge sandpaper is and its strengths.



1、 What is 3m sponge sandpaper


3M sponge sandpaper is made with a special sponge as the substrate and coated with a layer of mineral sand on the surface, which can maintain the original grinding effect and make the product more elastic. It is easy to use and has the characteristics of dry and wet dual-use. It is mainly used for polishing Mobile phone case, digital camera shell and Bull polishing of electronic products, which can achieve good results regardless of hand grinding.


3M sponge sandpaper is a strip of abrasive bonded to flexible materials such as paper and cloth for grinding and polishing. Paper tape is relatively hard and can produce a high gloss surface. Sponge sandpaper, a paper tape based grinding material, is used in both precision and ultra precision grinding. Fabric based tape has higher strength than paper based tape, and is less sensitive to temperature and humidity than paper based tape. It will not lose stability due to increased temperature and humidity, and the durability of fabric based sponge sandpaper is much higher than that of paper based sponge sandpaper. In furniture production, the commonly used abrasives for 3m sponge sandpaper are alumina, silicon carbide, zirconia aluminum oxide, garnet, and craft sandpaper use glass sand as the abrasive, each with its own characteristics.


2、 What are the strengths of 3m sponge sandpaper


The final surface quality of furniture products is closely related to the sanding process. Sponge sandpaper is the main component of sanding technology. Its quality is stable, wear-resistant, and can handle both high and low convexity and concavity. Can handle slip marks and burrs on the surface of injection molded products, and can also be polished. In the injection molding industry, it can achieve twice the result with half the effort.


Generally speaking, 3m sponge sand has coarse grinding, high plasticity, large grinding area, and coarse particle size to avoid chip embedding and softer workpieces; Fine grain size is selected for precision 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. Currently, the commonly used adhesives are animal glue and synthetic resin. Animal glue is not water resistant, while synthetic resin has good water resistance. Water resistant sponge sandpaper uses water resistant synthetic resin as the base adhesive and composite adhesive for strict waterproof treatment. Based on the functions of tape base, abrasive, and binder, combined with the processing object and process technology requirements, suitable tape base, abrasive particles, and binder can be selected to meet the requirements of sand grinding processing.