Answer
Do not sand finished laminate countertops for scratch removal. Only scuff lightly with 320 or 400 for coating prep.
Why it happens
Laminate has a thin decorative wear layer. Sanding can remove or visibly damage that surface.
Recommended grit
Do not sand visible laminate countertop surfaces for scratch removal. Use only very light 320 or 400 scuffing when preparing for a compatible coating system.
Wet or dry
Dry for coating prep only.
Success check
The laminate is either left undamaged or lightly dulled only for coating prep.
What to do
- Identify whether the goal is repair or coating prep.
- For visible scratch repair, avoid sanding the finished laminate face.
- For coating prep, scuff lightly with 320 or 400.
- Clean thoroughly before primer or coating.
Avoid: Do not use coarse grit on finished laminate countertops.