baking paint to cure it

[randywebb]

Does anybody know for sure if baking rattle-can spray paint to cure it will make it "stronger"??


(Don't have time to take it out for powdercoating; not enough material to make it worthwhile & don't want the powder coat finish either).

[KCPSG]

I can't tell you if it will make it "stronger" but I did it to my valve covers about 3 months ago and it looks great so far.

I baked the covers w/the primer 1st then applied the paint and baked them for about 30 min. then took dremel tool to remove paint off of the Porsche lettering. NO complaints so far.

[Dave Nordhoff]

I'm not a chemist but I have found most paints like to be baked. In the aerospace and automotive industries most finishes are baked. When ever I rattle can something at work I always put it in a warm room @ 140 F. I have always had good results.
Dave

[widebody911]

I did my outside door handles in rattle can (Rustoleum) and baked them - they've held up fine. I also do my VW bus wheels and front emblems this way.

[Hetmann]

I believe this process is called Japaning. Google that term and you will find several articles about it.

[asphaltgambler]

Good tip. Put the spray can under the faucet and run hot water over the top (plastic cap off) for @5 mins. This will raise the internal temp as well as the pressure and the paint will lay down better, dry faster and give a much nicer finish.

[anthony]

Can you bake spray painted stuff at a low temp in the house? (What I'm getting at is whether the wife or girlfriend complain about the smell?)

[89911]

I think some are mistaking "baking" with accelerated curing. No difference. Heating up the paint is effectively causing an acceleration of paint cure. One of the most effective ways I've found it placing the painted item in direct sunlight on a low humidity sunny day. This will accelerate the initial cure. The final curing is dependent on many factors, mainly how light of coats you used and how many of them. Make to thick of a coat and you can greatly increase the final curing time. The true test is to take an object like your fingernail and push hard on the painted object. It may feel fully cured, but if there is still an indent, it has more curing time to come.

[oneblueyedog]

Originally posted by asphaltgambler
Good tip. Put the spray can under the faucet and run hot water over the top (plastic cap off) for @5 mins. This will raise the internal temp as well as the pressure and the paint will lay down better, dry faster and give a much nicer finish.

This is true. Used the technique on my fan shroud. Looks like base coat clear coat.

[RSBob]

back to Randy's original question - durability. Does it help? I need to strip and paint the wiper arms.

[Early_S_Man]

Anthony,

Yes, the WIFE or GF will complain about the smell!!! You may want to buy yourself an old $40 stove for the garage ... lest her old stove [that you stunk up] become the next major appliance to be replaced in HER kitchen!!!

Best to keep the baking temp at or slightly below 80°C, or 176°F.

PPG DP40/401 epoxy primer works extremely well when baked at 180°F for two hours and followed up with Plasticote or other rattle can paint [also baked for two hours] on aluminum.