Question

what happens to sand after after adding pyranic solution into it.​

Answer 1

Answer: Are you supposed to sand after polyurethane

Allow each coat to dry fully. To give the subsequent poly layers something to bond to, sand lightly between coats with 320-grit sandpaper wrapped around a hard block. Note: The first coat needs the most sanding to appear smooth; don't worry if it doesn't look as flawless as you'd like at first.

Explanation:

Hope that helps :)