Paint Issues

[gilby4runner]

I am in the middle of restoring an old Defender Cabinet.  I have painted the base coat ( rustoleum gloss black). My  red and yellow are krylon spray paint.  I put my red coat down and let it dry over night.  This afternoon I couldn't resist doing the front of the cabinet.  When the yellow went on top of the red it had a crackle effect.  What's the deal?  Did I not give the red enough time?  Any ideas would  be appreciated!!  Thanks!

[southpaw13]

Spray paint is very tricky.  Sounds like a drying problem, check the can.

[mytymaus007]

any pics did you sray inside or outside and how was the weather
Also what material are you using  for your cab and how many coats of primer do you have on!! preperation is the key before painting put a few coats of this on and youll be Golden of course add some elbow grease (sand sand sand) PAINT http://www.rustoleum.com/CBGProduct.asp?pid=11

[gilby4runner]

I will post up some pics.  It was painted inside my basement.  I primed it with 3 coats of primer, sanded and applied 3 coats of rustoleum. (roller).  The red paint (spay krylon) went on well and looks great.  The reaction I had was with the yellow when it went on top of the red.

[Richard_Nixon]

Did you re-sand the areas where you sprayed the yellow?

[jennifer]

     It would be my guess here that since you didn't let the base fully cure, the solvent of the krylon reacted. What this means is the paints
are incompatible, possibly would have done this even if you would have let the base dry. Very light coats of krylon over a dry base may work,
if you allow everything to dry between coats. To fix what you have there, Jennifer would let it dry completely than wipe the krylon off the base
with a wet thinner rag.... drying immediately after saturation [wipe,dry] move to different area [wipe,dry] let dry repeate as nessary.
      If the curdle extends into the base color, your bet would be strip the cabinet and start over, or scape off curdle re prime that area lightly
sand and try again.

[gilby4runner]

Thanks for the info.  I believe I didn't let the base coat fully cure.  I am going to let it sit for a week or so before I attempt the second color on the sides. I have also considered rolling the yellow coat with rustoleum safety yellow.

[elkameleon]

Make sure you don't have too much moisture in your basement as well, as that could affect your curing times significantly.

[Afterburner]

If this isn't already resolved, check to make sure your paints are the same types.  Are they all acrylic?  Enamel?  Polyurethane?  If you have different types, that can cause the crackle effect you saw.

If they are all the same brand and type of paint, then as others have said, you likely didn't allow the coats to dry well enough between coats.  Latex and Acrylic cure up fairly fast.  Both Enamel and Polyurethane based paints can take several days to fully harden even after they have dried to the touch.

[gilby4runner]

Thanks for the info guys!

[Spacedueler]

Yes  - sounds like a cure issue. Some of the Rustoleum sprays say "recoat within 2 hours or AFTER 40." After 2 hours the paint is only partially cured. The solvent in the fresh paint will cause the prior coat to wrinkle if it is partially cured (basically the first coat isn't tough enough, and the second coat is acting like a paint stripper). I found out the hard way myself thinking 24 hours was enough - I won't make that mistake again.

[apfelanni]

some spraycanpaints have very aggressive solvents , especially car paintings / fillers / primers. some resin paintings take weeks or even months to harden , depending on the weather conditions and the thickness . rule number one is to make sure all paint and varnish is compatible , best from one producer. rule number two is be patient and dont rush anything when it comes to painting . if the temps or humidity doesnt match ,  u better dont even try the paintjob.