Did you wipe it down with anything prior to spraying your base coat and what was it???
Jay D.

Wiped down with solvent born wax and grease remover and waterborne wax and grease remover, very thoroughly. Using new blue Scott towels , I have used for the last 30 years.
If the panel wasn’t clean wouldn’t there been a reaction with the basecoat?

I wiped the basecoat down with a tack rag that was new, retrieved it , was laying on the top of my trashcan. Well I use that tack rag and thoroughly wiped 2 little metal index cards ,sprayed two coats of clear, no contamination.
I am at a loss .

Polish Painter wrote:.
At this point I tried sanding with the 600 wet then 400 wet actually dropped down to 240 wet and did not break through the clear i .

if thats the case you had way too much clear on there. how many coats of clear?

4 coats Universal clear , last 3 coats reduced 5% .
I broke through on a few edges , I plan on slowly sanding each panel to get contamination out . It will probably be 10-14 days before spraying again.
Would you lightly base those areas until coverage and then apply 1 more coat of base over the entire car ?? That would probably defeat the purpose of flow coating ( which I didn’t intend to do in the first place) .
Or just apply 2-3 coats clear , after achieving coverage on the broke through areas?

I plan on sealing, base and clear Spoiler first which is off the vehicle. To see if I am still having a problem.
A hood I painted a few years ago. I have done some quality work in the past, LOL