Unfortunately I pressed the post before I had finished the reply.
The two most important things to consider when fairing and painting a head/shower is to ensure that it is waterproof and that it is fair so that cleaning
To achieve this I believe the correct procedure is as follows
1. fill all of the coves and imperfections with a bog mixture of polyester/microballoons/cabosil
2. fair the entire area with 120 grit. (all coves should be sanded by hand using your palm to achieve a smooth transition)
3. spray 2 coats of 2-pac epoxy
high build followed by a disclosure coat of methylated spirit and food
4. re-sand the entire area with 240 grit trying not to cut through the highbuild ( repeat 3 if necessary )
5. if there are no blemishes spray a thinned coat of epoxy high build (if your painter is good at his craft he should be able to achieve this without runs etc. so that the top coat can go on with out further sanding)
6. spray 2 coats of 2-pac polyurethane
over the entire area. In my head/shower I rolled the floor after the rest was dry to minimise over spray.
The high build provides both the smooth surface for the top coat but also the waterproofing.
We have had a number of issues with marine
contractors and it is one of my pet hates.
If you can send us some photos via email
) or post them so that we may be able to help further.
Garry and Wendy
SV Spirit of Sobraon