Amazingly, this thread does not exist yet.
I damaged my coatings while replacing perfectly good diaphragms with identical newer diaphragms.
Can we discuss how we should repair saildrive
coatings for saltwater use?
I'll start with a proposition:
1. Clean the area with the antifoul solvent to get as much of the antifoul paint
out of the way;
2. Clean with acetone to remove oils and possibly other contaminants;
3. Sand the area, feathering over the layers of original or hardened paint
, and further backing up the antifoul paint from the repair area;
4. Without recleaning, dust sanded area;
5. Spray or paint bare, abraded aluminum
with zinc chromate, and allow to cure/dry;
6. Paint with acceptable primer over zinc chromate;
7. Paint over primer with two-part epoxy
8. Paint over epoxy
paint with tin-based anti-foul paint.
How would you improve that, what would you change, and/or what are the favoured (by you) sources for each product?
After we get this out of the way, maybe we can move on for those who want to repair any pitting they have.
We're all in this together (Red Green)