What caused this?

sscuda said
From what I can see the root cause could be a number of issues.

(1) Primers and top coats have different surface tensions. Did you mix the products? List the types of product and manufacturer of each layer. It's not good to intermix brands. Using the wrong primer such as a lacquer primer with a BC/CC system is a no -no.

(2)Primers vary widely as far as technology goes but all are moisture absorbent - moisture will become trapped in the primer and eventually migrate to the surface after a period of time. Lacquer primer is famous for this and in my professional opinion should never be used.

(3) Failing to allow enough tack time between coats or layers will cause this problem. Do you remember the wait times between layers?

(4) You didn't force dry (bake oven) the paint job I assume???

Answer these questions and I'll try my best to help you find the root cause(s).

sscuda

The primer and base/clear were all from the same manufacturer and meant to be used together. There was no force drying at any time. This is cheap paint but I have no problems with the other vehicles I have painted with it.

Number 3 could be a problem. I did spray the clear fairly thick and I was in a hurry and may not have waited long enough between coats. I was waiting 10 to 15 minutes. I probably should have waited longer.

Jack