6 replies to this topic

[dklawson]

I was painting today and put down both a 2-part epoxy primer... and a 2-component Urethane top coat.

I thought I had waited long enough for the epoxy to cure and off-gas but... apparently not. About an hour after the second color top coat I noticed that my previously smooth and shiny paint was suddenly starting to look like it had been showered with dust. I knew immediately that it's what (over here) we call "solvent pop". It's a careless mistake on my part.

The last time I had this happen it was on a rear quarter-panel and to make it look right I had to strip it back down and respray. This time I'm painting a bulkhead in an engine compartment. I really don't want to strip it again even though I know that's the right fix. Stripping the fresh paint will be messy and upsetting.

My question is... if I do nothing to the pin holes that are there but spray a third (perhaps extra thin) color coat tomorrow (while today's top coat is still "fresh" enough for more paint to adhere), will it cover the pin holes reasonably well ? This is an area that isn't seen often but I've gone to the trouble of cleaning it up so I want it to look "better" than it did, it doesn't have to look perfect though.

All comments are welcome.

[Element_01303]

...DK, I would think that a light sand to give some grip and a quick coat of hi build primer would sort the prob out quick, then color coat. Or possible a light coat of stopper or knifing putty to fill the holes, wipe the excess, then continue. Hope that helps.

[Frog]

I would leave it to go off fully then key it up, re-prime with a high build primer, scuff off & repaint, high build tends to cover up small mark very well.

[dklawson]

I checked the final, cured surface this morning, perhaps 10 hours after my first post here.

The problem is much worse than I saw as light was fading yesterday. I really don't have any choice but to strip and paint again. My hope is that the paint is still "soft" enough that chemical strippers will attack it quickly and lift it off without too much effort.

The lesson learned here is to have more patience and allow the primer to fully cure. Thanks for all the suggestions though.

[SolarB]

The problem is much worse

I really don't have any choice but to strip and paint again.

Chin up DK, you are not alone..........................

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[dklawson]

Thanks for the moral support.

I WISH my bulkhead looked 1/10th as good as the picture you posted. Picture a gloss red surface with what looks like it has fine sand sprinkled all over it... spread out. That's my bulkhead.

Tonight I got home and applied chemical stripper. The urethane was so fresh that after about 5 minutes it puckered, tore into strips, and curled up on top of the primer. I got 95% of it off before stopping for dinner. Tomorrow I'll get the rest of the red paint and go after some of the primer. As soon as time allows I'll sandblast all the surfaces to remove what paint is left.

Next time I'll be patient and allow the epoxy primer at least a day to cure!

[Surfbluegarage]

ive just had exactly the same happen yesterday. sprayed a set of miglia arches black and the thinners popped in it (was told by 2 professional sprayers) i sanded back to flat with 1200 then another coat of 2k gloss.. perfect.lol