I'd do one coat on the tub. Dry. Then a coat on the rim just before mounting.
This on a rim with lose bits of glue removed. But otherwise uncleaned. I consider the old glue to act as my first coat.
2 thin coats on rim and one on tub should be more than enough?
@Smallfurry started
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I'd do one coat on the tub. Dry.
Then a coat on the rim just before mounting.
This on a rim with lose bits of glue removed. But otherwise uncleaned. I consider the old glue to act as my first coat.