Having paint issues

[bruce69camaro]

I'm trying to build a model of my personal Camaro. I purchased an outlaw cowl hood made from resin and I can't get the paint to finish right. The paint wrinkles. I use 1000 grit sandpaper and rough it up, then primer it. I'm using Krylon spray paint that I used on the body, with success. I contacted the maker and he told me maybe the resin was bad so he sent me another one. Same thing happened. What am I doing wrong? 

Thanks

[showrods]

Are you double/triple washing it?

[Dpate]

Have you tried letting the hood sit in dawn soap for a little while? That should clean it up pretty good. 

[bruce69camaro]

Actually haven't done either of your suggestions. I just wipe it off with cold water. Should have known to use a soap.

Thanks 

[Bainford]

Use an aggressive soap and warm water. Give it a thorough scrub with a soft bristle brush. Toothbrushes are great for this, but not a used one. Splurge for a new one just for the bench. And not one with funky bristles, but one with straight cut bristles. 

[peteski]

Is the hood resin cast, or 3D printed? Can you post a photo of what the paint looks like?

Yes, dishwasher detergent and warm water should be used. I would even go as far as using 91% isopropyl alcohol (it will not damage plastic or resin).  But I would also not expect wrinkling on contaminated surface - instead I would expect fish eyes or patchy coverage.

[bruce69camaro]

Thanks for all the advice. The description said the hoods are resin. I just ordered another one and will follow the above advice. 

Now who are the pro street model builders on here....

Thanks

[espo]

Another thing to consider with a resin part, you may want to prime it with a good automotive type of sealer/primer before painting. Regular model type paints don't seem to adhere well without a good primer first. 

[Shark]

I usually soak any resin parts in Westley's Blech White tire cleaner for a day, than soft tooth brush and cold water scrub. Never have any paint issues.