Help with rattle can spray paint

[Jerry Bruette]

This past summer I was making some toys to give for Christmas. The wheels were to be painted with gloss black paint. The wheels are made from birch and were sprayed with primer and then top coated with black. You'll be able to see the problem I had by looking at the pictures. first two are the problem and the third is after I sanded them with 220 paper.

Primer and topcoat are both Rustoleum products. Some wheels were primed with white and some with black. While spraying the black the paint was acting odd. It was almost like the propellent was dissolved in the paint and was bubbling out after the paint was applied.

Has anyone had this happen to them and what was the fix?

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[Tom M King]

It looks like incompatible finishes but I wouldn't think so being all Rustoleum. I'm not sure, but I would use one of those shakers made to go on a Sawzall. I have some really old cans of spray paint that have worked fine after a such severe shaking.

[Maurice Mcmurry]

Some spray paint has instructions that say "Apply a 2nd coat within 1 hour or after 72 hours". I have tried to cheat the timing a few times and ended up with that problem.

[Carroll Courtney]

One problems with that paint is curing time, If can days 24 hrs wait 36 hrs. I had that same problem but when I waited several days problem went away. But guessing both are compatible.

[Jim Becker]

Rustoleum makes a lot of products and some are not "compatible". Time and temperature also matter. For priming, I like their grey "automotive" primer and have found it to work well with a wide variety of top coats including the waterborne finishes I typically use as well as with various brands of rattle can paints.

Back when I was a teen and involved with model cars (local competitions, even) I intentionally mixed incompatible spray paints a few times to get some pretty interesting effects. LOL

As an aside, that "can shaker thing" thing for a reciprocating saw that Tom mentions is a pretty kewel device that I'm seriously considering getting myself.

[Lee Schierer]

By any chance did the wheels get exposed to sunlight after they were sprayed? If so the heating of the sun can caused the air in the wood to form bubbles and a crinkled finish.