1956 (universal) Paint solvent compatibility

[knuckle47]

I am not a painter but have painted my motorcycles with stock vintage enamels and some urethanes and they've always come out beautifully by luck I may guess.. I'm familiar with solvent incompatibility causing issues BUT, I am painting the smaller steering wheel red using a PPG enamel.... when the 2nd coat after 4 days dry time, wrinkled the finish to the point where it will need to dry and then get sanded for re-coat. Anyone with experience wish to chime in on what may have happened with this? I have seen this happen when unknowns are mixed and the solvents react...however these are the same products on the same surface
Thanks in advance.

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[74 Harley]

Either the base coat was not dry enough, or it was too dry. Some paints must be second coated within a very short time so they don't absorb the reducer. Research your paints and get the proper recoat time.

 

[knuckle47]

Said 2 hours or 4 days. They lied 😉

 

[Ward 57]

Said e hours or 4 days. They lied 😉

I used Rustoleum Gloss protective enamel in Canvas White to paint mine. It's a dead ringer for Colonial White. It's a pretty heavy paint and almost put it on too heavy. Had a couple of small runs I had to sand down after I let it dry for a couple of days. It took that long to get it to the point it was not tacky to the touch. Came out great.

 

[knuckle47]

Hey @Ward 57 , I have used that Rustoleum and Rustoleum commercial grade and it always comes out great. It is a heavy solids paint but can hold up to a bunch of hard use. I had painted a hydraulic press I made with the commercial grade paint that holds up great now 3 years and used a 2 part urethane to paint a 26’ boat and it is so durable that banging against a dock for 5 seasons has not marred it anywhere. I wanted to go that route but I have no red and the stuff is very pricey. Cleanup is a big PITA for a small steering wheel. Next time I’ll take the easy way out….lesson learned. Another lesson learned

 

[57tbird57]

I am not a painter but have painted my motorcycles with stock vintage enamels and some urethanes and they've always come out beautifully by luck I may guess.. I'm familiar with solvent incompatibility causing issues BUT, I am painting the smaller steering wheel red using a PPG enamel.... when the 2nd coat after 4 days dry time, wrinkled the finish to the point where it will need to dry and then get sanded for re-coat. Anyone with experience wish to chime in on what may have happened with this? I have seen this happen when unknowns are mixed and the solvents react...however these are the same products on the same surface
Thanks in advance.

 

[57tbird57]

DID YOU USE A PLASTIC PREP? GREASE AND WAX REMOVER? THE PART AND PAINT SHOULD BE ROUGHLY THE SAME TEMPERATURE

 

[knuckle47]

Surprised you bring that up… yes I did “Choice One plastic adhesion prep”.I believe it’s Also a PPG product.
Frankly, the first coat was nearly perfect and I should have just left well enough alone. I may want to give up this perfectionist thing

 

[CSPIDY]

I always use a urethane primer sealer before topcoat on all my painting

 

[knuckle47]

I question the fact that maybe it just was not dry enough…. It had been over 4 days, in my very dry northeastern house, the coverage was glossy as heck, depth of color was perfect but I had been a bit thin at the top of The wheel on the underside. In other words, you’d not see it unless the top of the steering wheel was at the 6 o’clock position so you’d be looking at the inner circle. This bugged me though.

The prep was proper, epoxy primer on top of the plastic adhesion coating ….and the red was fine. Within 15-20 seconds i see it crinkled in 3-4 spots. My enthusiasm shot. Now I know it’s either a thinner wipe down or let it dry for a week and sand it. I was deflated mentally so…it sits til next weekend when it will be either raining or windy and freezing cold ! I’m sure all of us have been there in one way or another

 

[Ward 57]

Surprised you bring that up… yes I did “Choice One plastic adhesion prep”.I believe it’s Also a PPG product.
Frankly, the first coat was nearly perfect and I should have just left well enough alone. I may want to give up this perfectionist thing

I think there is a saying that 'Perfect is the enemy of good.' But OCD people have done amazing things as curiosity and determination are gift if you can control them.

 

[knuckle47]

Never thought OCD was something to concern my self with but several people mentioned …so, I put it to good use today. Man, it was 63 degrees outside felt like 70. Decided not to waste a week , let it harden and resand ….so it’s done and came out good.