Fixing a burn through/ Blending solvent

[jeepermat]

Amateur painter here, if you haven't already figured that out!

I painted a Mustang about 6 weeks ago with UV Clear, and have been slowly getting around to cutting/buffing. I burned through on a tight corner where the polisher got away from me. I sanded it down to the base, then hit it with some epoxy, then sanded with 1500 to get it smoothed out.
I am now trying to put base back over it and am having issues with the epoxy bubbling.
It is bubbling up where the epoxy was laid over clear, not where I broke through to the basecoat.

I also picked up some blending solvent (915-4). As per the instructions I followed behind the basecoat with a pretty light coat, I believe this is when the epoxy bubbled on me.
The epoxy had cured for 20hrs, and was easily sanded, so I dont think cure time was an issue.

Any recommendations how to proceed here? Am I using the blending solvent correctly?
Paint color is a dark metallic.

 

[Jorge M.]

Amateur painter here, if you haven't already figured that out!

I painted a Mustang about 6 weeks ago with UV Clear, and have been slowly getting around to cutting/buffing. I burned through on a tight corner where the polisher got away from me. I sanded it down to the base, then hit it with some epoxy, then sanded with 1500 to get it smoothed out.
I am now trying to put base back over it and am having issues with the epoxy bubbling.
It is bubbling up where the epoxy was laid over clear, not where I broke through to the basecoat.

I also picked up some blending solvent (915-4). As per the instructions I followed behind the basecoat with a pretty light coat, I believe this is when the epoxy bubbled on me.
The epoxy had cured for 20hrs, and was easily sanded, so I dont think cure time was an issue.

Any recommendations how to proceed here? Am I using the blending solvent correctly?
Paint color is a dark metallic.

I think you're putting very hot solvents (915-4) on a sensitive substrate and it's getting you in trouble.

A dark metallic color shouldn't even need blending solvent, chances are your blend will never show up under the clear coat. Is just not one of those colors that calls for the perfect spraying technique for blending.

Just my two cents, hope you sort it out.

 

[Chris_Hamilton]

Jeepermat: Blending solvent is mainly used for burning in clear on clear. Leave the blending solvent alone. It is not meant for nor is it needed for what you are doing. Prep the repair area as normal. If you are trying to blend your color in the repair area simply get coverage with your sealer in the repair area only. Then spray how ever many coats to get coverage with your base. When you do this extend each coat a little farther out and try and feather it off with gun at the beginning and ending of each pass. Idea is to blend the color into the existing color. Seeing you are using the same paint that you initially sprayed the base with it should be no problem. Then re-clear that section. Carry it out so that you are reclearing the entire panel. If the repair is on the door clear the whole door if it's on the 1/4 clear the 1/4.