Moderated Discussion Areas
ContinuousWave: Whaler Repairs/Mods
|Author||Topic: Hull paint|
posted 09-03-2002 05:41 PM ET (US)
Can anyone recommend a paint that an amature can spray with reasonable success? I would like to spray above the water line and brush below the water line.
posted 09-03-2002 08:03 PM ET (US)
What kind of equipment do you have ?
Compressor, spray gun ?
Being an amateur (like me) I would first get a decent gun, air line dryer/filter and at least a 2HP, 20 gallon compressor. Get some paint in small quantities and start practicing on some test pieces (like a big sheet of plywood, plastic laminate, an old car door, you get the idea).
You have homework to do. Get some books about car spray painting. Once you are comfortable and have good success, then try on your boat. Be safe too and wear the proper respirator with the proper cartridges. No dust masks!!!!
posted 09-03-2002 09:12 PM ET (US)
Last winter I restored a 1963 13', I paid my dues in repair and prep time. I decided to finish off the interior and exterior with a single part marine paint made by Pettit called easypoxy (easy availability). I custom color matched the blue interior and sprayed on two coats (thinned with the correct thinner) with my small automotive detail gun at around 40 lbs pressure, I played with the thinning and pressure to get the right flow out with minimal overspray, it layed down beautifully. The finish is easy, tough, and can be touched up as necessary. I did the same on the exterior with Pettit easypoxy off white. Light sanding between coats 320#, vaccuum with a brush tip before spraying and let it sit a good 7 days. Also only around $100 total cost. Also watch that humidity.
posted 09-04-2002 01:45 AM ET (US)
Just be sure that you do not use topside paint below the waterline! If you want to use paint below the waterline you would need to use an epoxy paint designed for this. Polyurethanes like Easypoxy will blister off if left submerged for more than a couple of days. Easypoxy is a good choice for the topside as it is easy to get good results with.
posted 09-04-2002 06:17 AM ET (US)
I have seen easy epoxy at the West Marine. Thanks for the information. It looks like I will have to practice with a spray gun and do some homework.
posted 09-04-2002 11:12 AM ET (US)
If you want it to hold up to a "dropped anchor", use a 2 part epoxy. Single is ok but 2 part is tough.
posted 09-06-2002 12:54 AM ET (US)
Depending on how classic you want your
whaler to be, I decided to use single part, it was cost effective, $24 a Qt compared to $80 a Qt for two part, I was looking at around $500 for two part paint and thinner, just was not cost effective for my old 13'. If I had a larger boat that had a much higher cost/value I probably would be looking at a professional two part job or re-gelcoat, but then again I probably would have bought the best original condition classic that I could find in the first place. Using single part on the hull is not really any different than having gel coat as far as leaving the boat in the water. If the boat is to be trailered and used on a on a daily basis, the concern about blistering/peeling is really not a factor. Pettit has no problems with their paint sitting for a couple of days constantly submerged. I was even steered away from two part by the technical paint rep. for Interlux, which I thought was interesting.
posted 09-06-2002 12:50 PM ET (US)
I used Imron on my 1964 Nauset for above the water line. It's a 2 part, 1 quart with 1 pint activater covered my boat with 3 coats. I had some runs on one side and did it over with 3 coats and still have a little left over. It's hard to work with in high humidity. As I mentioned before if I did it over again I would use gel coat due to the amount of work I put in.
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