Answer
Between cured epoxy tabletop coats, scuff with 220 or 320 and clean completely before recoating.
Why it happens
Cured epoxy needs a clean, evenly scuffed surface when recoating outside the recoat window.
Recommended grit
Use 220 or 320 to scuff cured epoxy before the next coat.
Wet or dry
Dry.
Success check
The epoxy surface is evenly dull and clean before recoating.
What to do
- Let the epoxy cure enough to sand.
- Scuff the surface with 220 or 320.
- Remove all dust and residue.
- Apply the next coat according to the epoxy instructions.
Avoid: Do not pour over glossy cured epoxy without prep.