Polishing Linear Polyurethane Imperfections

[GSouth]

So I have done a few tests, thinning the mixture all the way to 1:1 with laquer thinners, so basically the consistency of milk if I would need to describe it. And the result is MUCH better, still not perfect, it still keeps some broad brush stroke marks, but if it came out like this the first time, it would have been good enough for me not to go through all the effort to try and get it better.
I tried foam brushes, but found that they just absorb all of the baint and immediately become mushy, not sure if its a problem with the brand, but its all I can find.
I am going to test again with a foam roller and see how that goes.

One question though, is there any way the integrity of the paint can be affected by thinning it by this much?

Thanks for the help so far.

Originally Posted by Thumbs Up

You have to thin it. I see now that you only thinned 10%. Awlgrip products (same company different line) call for a different hardener and a different thinner for roll and tip. If you are working in hot weather you have to thin even more. The stuff goes on water thin. It is worth trying again but thinned more. Jen brand foam brushes work best for tipping but start to fall apart after ten minutes so you need several. If you do spray you need a proper respirator. Try to find someone who knows how to spray cars and have them shoot it.