Re: Clear coating, a couple of questions...

Posted by Clooney on November 12, 2002 at 16:51:52 from (172.175.232.128):

In Reply to: Clear coating, a couple of questions... posted by Karl Bader on November 11, 2002 at 03:56:36:

Karl, the answer is a maybe. Depending on the type of clear you want to use. Deere enamel is a synthetic enamel & doesn't take kindly to urethane clear over it. I have clear coated Deere synthetics but have also had problems doing it.
~If you have a real nice paint job now you might be real unhappy if you clear it & it lifts or checks.
~The safest would be to use a synthetic clear but that won't gain you much as it is still pretty soft & scratches easily.
~If you are willing to risk a paint problem or need to wet sand previous problems out [Deere synthetics don't wet sand & come back to a good shine like acrylic enamel],, I will share what I have learned [the hard way]..
~First the Deere synthetic paint needs to dry for about 3 weeks or more, more is better, [if you didn't use hardener in the Deere paint it might not ever be hard enough to hold urethane clear], then use nothing coarser than 1000 grit paper to wet sand [DO NOT use a scotch pad as it opens the base paint up too deep], after wet sanding put it in the sun for a day or so to let as much of the trapped reducer evaporate off as possible, then after wiping down, shoot a fairly thin first coat of urethane clear & let flash off to the maximum allowed [don't rush the second coat], then shoot a fairly thin second coat & let it flash for about as long as allowed [if the clear doesn't react with the base coat at this stage it will probably be good to go], then lay on a fairly heavy 3rd coat & that should be it. If you plan on wet sanding the finished project then a 4th coat would be a good idea so you don't break through when sanding. Don't rush the follow up coats as you want the solvent to evaporate off & not get trapped under the clear.
~I have a couple of urethane clear coats over Deere paint going on 3 years now & it is holding up good even after being in 100� direct sun. I have also had my share of problems trying to get a clear coat over Deere synthetic enamel. You will be hard pressed to find any paint manufacturer that will recommend their urethane clear over synthetic enamel & I agree. I have made it work but not without a fight ..

Follow Ups:

• Re: Re: Clear coating, a couple of questions... Karl Bader 20:33:10 11/12/02 (1)
  • Re: Re: Re: Clear coating, a couple of questions... Jerry B 07:06:17 11/13/02 (0)

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