How to Choose sand paper

Matrix, abrasives, coated abrasives adhesives called three elements, and the most widely used base paper substrate, the largest amount of material. Paper is mainly used to produce waterproof sandpaper, dry abrasive paper, wood sandpaper, paper-based belt and so on. Coated abrasives manufacturing process, the matrix direct impact on product quality, because  zirconia flap disc each production enterprise manufacturing equipment and technology to deposit a big difference, so choosing the right paper for stable product quality is of great help. First, the paper manufacturing enterprise status
Because sand paper A specialty industrial paper, relatively narrow market, the amount of small, less than 20,000 tons per year in the domestic market, with the country's industrialization process accelerated in recent years, a big increase, but because of the special requirements of sand paper, market profits little space, state of the paper is almost no research and development and technical support, the original state-planned economy when several paper manufacturers completely disintegrated, closure or conversion, so the paper manufacturer depleted The base paper production enterprises can basically meet the needs sanding paper production enterprises to choose, especially heavy abrasive paper, latex paper, the original all rely on imports, domestic production can now, some products can basically import substitution. But the production of ultra-precision grinding sand paper belt super heavy paper base paper, due process equipment with foreign countries there is a gap, we can not meet the requirements of coated abrasives manufacturing enterprises, the grinding disc  need to accelerate innovation, enhance research and development capabilities and manufacturing standards.
Second, the paper selection errors
A coarse grained sandpaper use the same paper. A coarse sandpaper plant detail the amount of sand, primer, complex glue on both larger difference between the substrate requirements are not the same. Generally coarse mesh to choose quantitative emphasis paper, quantitative detail to choose lighter paper. Two paper smoothness, the coarse grained sandpaper requirements are not the same. Breakdown due sand small amount of glue on the little paper smoothness to be high, especially surface can not have paper hair, coarse mesh requires relatively loose some.
2, the paper does not match with the binder. Because paper papermaking process for coated abrasives production enterprises of different quality sandpaper with a corresponding adjustment process. For example: A grade paper papermaking, B grade paper, paper craft latex raw material  thin cutting wheel selection are not the same, so the sandpaper manufacturing production process to choose a suitable binder, to coincide with the base paper. Generally speaking: A grade paper is mainly used for the production of silicon carbide sandpaper transparent epoxy resin binder to do; B grade paper production ordinary waterproof sandpaper to do with the alkyd resin binder; latex coated paper production super dry grinding sandpaper then with an epoxy or phenolic resin as binder, there are companies to reduce production costs, A grade paper is also used alkyd resin latex paper urea-formaldehyde resin as binder, these two paper papermaking process, the use of process is not the same, is not suitable for Materials with high bond strength is not as sandpaper binder, otherwise it will affect the wear durability. If not properly controlled production process also appears brittle, cracks, mortar and paper peeling.