What are the differences in the application of sandpaper rolls in surface treatment of different materials?

1. Wood processing
Application features: In wood processing, sandpaper rolls are often used for the surface treatment of wood products like furniture and flooring. Wood is relatively soft, so when choosing sandpaper rolls, you need to pick the right grit to avoid damaging the wood surface by over-sanding.
Grit selection: Usually start with a coarser grit, like #80, to quickly get rid of burrs and uneven parts on the wood surface. Then move on to finer grits, like #120 and #180, for fine sanding to make the wood products' surface smoother and look better.
2. Metal processing
Application features: Metal materials are harder, so sandpaper rolls need to be more wear-resistant and have stronger cutting power. When processing metal, it's often necessary to remove oxide scale and burrs and stuff like that. So, the sandpaper rolls need to have good cutting performance and be able to last.
Grit and material selection: For metal processing, you can choose sandpaper rolls with fine grit but strong cutting power, like the ones made of brown corundum or white corundum. Also, since high temperatures might come up during metal processing, you need to think about the heat resistance of the sandpaper roll.
3. Plastic processing
Application features: Plastic materials are relatively soft and easy to get scratched. So, you need to be more careful when using sandpaper rolls in plastic processing. In plastic processing, it's often necessary to remove mold release marks, fix flaws and scratches and such.
Grit and operation techniques: For plastic processing, you should choose sandpaper rolls with fine grit, like #240 and #400, to avoid scratching the plastic surface. At the same time, when sanding, you need to keep the force even and move in a straight line. Don't over-sand in one place.
4. Glass processing
Application features: Glass materials are hard and fragile. So, when using sandpaper rolls for glass processing, you need to be extra careful to avoid scratches and breakage. In glass processing, it's often necessary to do edge grinding and chamfering.
Grit and operation techniques: For glass processing, you should choose sandpaper rolls with very fine grit, like #800 or above, to make sure the glass surface is smooth and has no obvious scratches after sanding. At the same time, during sanding, keep the sandpaper roll wet to reduce dust and lower the risk of glass breakage.
5. Other materials
Ceramics, stones, etc.: These materials are hard and also need sandpaper rolls that are wear-resistant and have strong cutting power. When choosing sandpaper rolls, you need to consider the specific material and processing needs all together.
Special materials: Like composite materials, coated materials, etc. These materials have special requirements for choosing and using sandpaper rolls. When choosing sandpaper rolls, you need to know the features of the material and the processing needs to make sure the sanding effect and quality are good.