Any pics of the bondo/pigment on a part?
I don’t have any.
So the wing is finally done. The question i have though, is if you spray a clear coat over the surface, like a Spray Max 2k, will it cover up all the pin holes or just fish eye bad? Any suggestions?
Yes and no… Numerous very light coats and most will fill. Then wet sand and buff
Any suggestion on what grit to start with? Do i need to lightly sand the surface prior to applying the clear coat?
Sand it with at least a 600 grit. When you sand it with with less it is possible you see it in your clear coat. For polish clear start with 1500 or 2000 and finish with 3000.
Any updates on this project? Curious how his clear coating steps came out.
Those molds are beautiful! I’d like to hear more about those but don’t want to derail your post.
Awful, crap, garbage… those all apply.
I could never get the parts to look right out of the mold. I tried to get a super nice finish too make them shiney, nope. I tried the GAC IMC and they came out horrible (in the trash that went). I also tried to use the wonderfill stuff and that didn’t work. I tried a few epoxy flood coats and lots of sanding in between. I tried everything but applying a 2k to the surface of the mold (i am hesitant since the IMC came out so bad)
on the last parts i made, i had a body shop try to clear coat them and that came out bad. It really sucks when you put tons of time into this stuff and it still looks like crap in the end. I have given up and will either wrap everything (which may have issues with the pin holes) or just paint them.
Don’t give up man. Try the 2K clear in mold and see how that is. The second picture you posted is similar to the results I was getting. I’m in the process of looking into in mold coatings. Coming from years of body and paint work, I’m leaning towards just trying a 2k clear, since thats what I have on hand already. If you try it, keep us posted.
Cool car btw!
Very sorry about your results. They do look typical though. Those look like pinholes from the weave and the clear is sinking in. Before clearing I went to wiping the part with water after sanding. Then blowing the surface with compressed air. The water would stream out from the holes and tell me where they were. I’d circle the problem areas with a grease pencil and blade in 5minute epoxy. Sand and repeat. Then clear coat.
I’ve had alot of problems with IMC so this became my best practice for small run one off parts that needed to work first try.
Duratec sunshield works good for this problem (much better than clear coat). Apply a medium coat, take a brush over the surface to remove the pinholes. Follow up with one or two more medium coats, waiting a few minutes between coats to allow for solvent to evaporate. After sand surface down and either do a thin down sunshield coat (harder surface than clear coat), or clear coat surface as normal. Shouldn’t have any pinholes after…