Industry News

When using ceramic sandpaper for paint restoration, one concern many people have is "burning" — localized overheating of the paint surface that causes it to turn white, char, or even grind through the clear coat. While this concern is understandable, attributing the cause directly to the abrasive is inaccurate.

Backing softening and delamination in finishing abrasives is a common workshop issue. Most people blame the sandpaper first, but the cause is usually a mix of factors. The backing's waterproofing, the binder's water resistance, and conditions like slurry chemistry and soaking time can all contribute, alone or together.

When grinding shifts from hand work to high-speed machine operation, or when hard materials are processed continuously, standard rolls run into a familiar problem: heat buildup. Friction heat softens the bonding resin, and the abrasive grains lose adhesion. Cutting performance drops, and in severe cases the workpiece surface can be scorched. High-temperature-resistant automotive sandpaper rolls are built around this specific failure point.

Wavy marks on putty after pneumatic sandpaper sanding usually have more than one cause. Check pad and backing flatness, hole alignment, sanding technique and speed, putty layer condition, and abrasive distribution in that order, then compare a few samples to pinpoint whether the issue comes from the equipment, the technique, or the sandpaper itself.

These measures help, but they don't fix the source. Dust forms the moment sandpaper touches the workpiece. The way the abrasive cuts and clears debris decides whether dust stays in the air or gets captured. Eco-friendly ceramic sandpaper works on both ends of that process.

The fine-finishing process for automotive body and paint surfaces relies heavily on wet sanding. Wet sanding helps suppress dust and gently smooths out orange peel and dust spot defects on the paint surface, ensuring the paint surface achieves the desired level of smoothness. Wet sandpaper is the core consumable in this process.