06-25-2008, 12:50 PM
Having been involved in the boat industry as far as I'm concerned the best substance you can possibly use for that sort of application would be one of the 2 part l-polyurethane finishes. My favorite is "Bristol." You will get 10 times, no exaggeration, the UV resistance with one of these type finishes, and you'll be able to put on multiple coats in a day. They stink like toxic waste, but that's the price you pay.
It MUST be a 2 part. 1 part polyurethanes are usually just alkyd enamels.
The only trouble with the two part finishes like this is that you must be very wary of punctures in the skin coat, as water under the impermeable finish will cause it to lift in time.
You most likely will have to order this stuff, but if the sun is beating on your project it's the best you can come up with by far.
It MUST be a 2 part. 1 part polyurethanes are usually just alkyd enamels.
The only trouble with the two part finishes like this is that you must be very wary of punctures in the skin coat, as water under the impermeable finish will cause it to lift in time.
You most likely will have to order this stuff, but if the sun is beating on your project it's the best you can come up with by far.