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DISASTER! What causes this?!

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  • Member since
    January 2007
Posted by the doog on Sunday, November 15, 2009 11:58 AM

Thanks for your responses, guys, but I don't think either of those issues is it. Fort, the plastic was primed with Tamiya Fine White primer, one o fthe best there is, and then accpeted the paint just fine--in fact, painting was finished; all I had to do was clear coat it. Why it attacked BOTH the Krylon AND the Tamiya paint is beyond me!

Secondly, there was no residue of anything as far as I know on the finish. I washed it with dishwashing detergent (grease cutting) before painting, and rinsed thoroughly.If I don't figure this out, it's going to be a sincere problem if I paint this body again and have this happen. 

 

  • Member since
    April 2008
  • From: Ventura (at the beach) in California
Posted by *INDY on Sunday, November 15, 2009 11:53 AM

Man, that sux Doog ! Warming the cans is always a good way to improve flow, as far as I've ever heard, no problems attached. Maybe that Tam clear is a bit different. I don't guess it's a prep issue as your color-coats looked fine, but clearly they reacted with each other.......Hey you've discovered crackle-finish ! ok, not funny.    If you start all over I would go with the above advice and lightly sand the whole deal, prime, re-paint and use a totally diffferent clear-coat, as I suspect the formula is off in that can you have(best guess)

 

"Well...you gunna pull them pistols, or just whistle Dixie?"

  • Member since
    May 2005
  • From: Left forever
Posted by Bgrigg on Sunday, November 15, 2009 11:40 AM
Did you wash the bare plastic, or prime, before painting? I had a similar issue happen on an older AMT kit where the plastic just repelled the paint. Just wouldn't stick, no matter how carefully I cleaned it. Even wiping it down with straight alcohol didn't get the release agent off the plastic. I ended up doing a light sanding and primed with Tamiya grey before the paint would adhere.

So long folks!

  • Member since
    January 2007
DISASTER! What causes this?!
Posted by the doog on Sunday, November 15, 2009 11:15 AM

Hey guys,

Well, I'm sitting here just about broken-hearted and frustrated in the extreme. Ijust tried to clear coat the my Modified's body here, using Tamiya Clear, and here's what happened;

A light sanding of the part shows that it has indeed attacked the paint beneath...

The same thing has happened to themain body, although not as extreme. And though the body was painted in Krylon (the pink hue) and Tamiya (the Black and the Gold) the results were the same on both surfaces--but only in certain areas. I had washed the bodywith dishwasing liquid  last night before going to bed, and set it out to dry. So I don't think there are any oils or contaminants on it?

Strangely, the same thing happened THREE TIMES with just the Krylon when spraying it. I am still wondering if it has to do with heating the spray bottle before spraying it? It's about 60 degrees in the house, and I heated up the Tamiya spray can for about 3-4 minutes in warm water.

I can't figure this out. It's heartbreaking and really p***ing me off! If the rest of the body underneath hadn't turned out so well, I'd be tempted to give this a "flat" finish--as in under my boots! As it is, it's in the ol' "Simple Green" bath again....Banged Head [banghead]

Anyone have any clue as to what is going on here? 
Sigh [sigh]

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