Originally Posted by
Colnago Mixte
I suppose it does, but when I used it, I had a gray primer underneath, white paint white over it, and when I sanded, I kept sanding through to the primer, and finding spots where the primer showed through, which was extremely irritating.
This is one of the reasons pros use a sealer between the primer and color coat. Not only does it make the top coat stick better but it also provides an even undercoat color so the top coat is an even color. This is a time sensitive application. You have to wait a certain amount of time after sealing before color coating but not too much time for maximum adhesion.
As mentioned in my previous post I use House of Kolor primers that come in the primary colors that can be mixed in some combination to get the approximate color of the top coat color. This provides the additional advantage of makes chips less visible. Thinned with the appropriate temperature related reducer they also work well as a sealer.