just had my boat painted, they shop did the sides and the back where the drives are. he used some kind of base coat then clear coat auto paint. my question is that this paint goes below the water line and i do leave my boat in the water for 2-3 weeks at a time. Am i going to have a blistering problem? if so is there anything I can do to protect this so i have no issues? thanks

Unfortunately no automotive paint is recommended below the water line. I have seen some with sucess such as Standox but even then I only left it in the water 4 days or so. I have even seen Imron fail. If you can pull out more in the evenings you will be better off. Good luck.
Bob

We have used this under the waterline with some success. We have not had one come back and have been using it for 10 years.

Billy

can i put the diamonte over whats there

Many automotive clear coats are aliphatic acrylic polyurethane composition, by there very nature then want to absorb water, thus the blisters. You will have a lower risk using aliphatic polyester polyurethane. This is a product that is often used in industry and usually is slightly amber in color when compared to an automotive clear. Check out the paint systems offered by the marine paint industry. You may find a clear epoxy that is immersion rated, you will have much better luck fining an epoxy with color than clear. Epoxy will chalk when exposed to sunlight so be sure when the vessel is not in the water it is not in direct sunlight. And most importantly since you have a combination of paint systems going on DO A TEST - you have all winter. Make several mock up of your existing system then apply the new paint or clear over the top. Allow the samples to cure a minimum of 14 days @ 77 degrees. Then immerse the samples in water @ room temp. Allow the sample to be under water for double the period you think you boat will be in the water.

Your best solution will be to top coat the wetted surfaces with an immersion rated colored epoxy.

any product that has been installed. You could 80 grit and install interlux 2001 barrier coat. you can roll or spray it on and then tool it down like primer, after all it is primer. Then seal off and get it to 320. Shoot the base and clear and it should turm out.

hope this helps.

Billy

sikkens hb was used for clear. is this stuff any good ?