Aaargh! Krylon Clear Flat (Matte) "Dandruff?"

Lt. Z0mBe · Post by **Lt. Z0mBe** » Wed Apr 20, 2005 1:44 pm

Wise and Sagely Modelers,

I applied the first flat coat to a model last night using Krylon clear matte. I made sure I hit it with a tack cloth and the whole nine yards. After I was finished, it had what looked like dandruff flakes all over the model. No, it wasn't from me, lol.

I think it came from the Krylon, and the "flakes" seem to respond to gentle persuasion from a cotton swab. I know that model was absolutely spotless when I sprayed it, and I don't have dandruff - I went in the other room and checked.

Anyone else have this experience with Krylon or any other spraybombs?

Thanks in advance for the advice.

Z0mBe

publiusr · Post by **publiusr** » Wed Apr 20, 2005 4:10 pm

No Idea where that came from- (scratch, scratching my head)

Owen E Oulton · Post by **Owen E Oulton** » Wed Apr 20, 2005 9:05 pm

This happens occasionally with Testor's Dullcoat as well.

Essentially, matte clearcoats are simply a gloss clearcoat with a dulling agent (like talcum powder) mixed in. Various factors like temperature and humidity cause the powdered matting agent to clump on the surface, cause either white specks or a whitish "blush." The standard measures are to make sure the can is properly shaken (at least 1 minute of vigourous shaking), that the humidity is low, and that the temperature is warm - warming the can by placing it a bowl of water as hot as you can place your hand in also helps.

Lt. Z0mBe · Post by **Lt. Z0mBe** » Thu Apr 21, 2005 11:31 am

Owen E Oulton wrote:This happens occasionally with Testor's Dullcoat as well.

Essentially, matte clearcoats are simply a gloss clearcoat with a dulling agent (like talcum powder) mixed in. Various factors like temperature and humidity cause the powdered matting agent to clump on the surface, cause either white specks or a whitish "blush." The standard measures are to make sure the can is properly shaken (at least 1 minute of vigourous shaking), that the humidity is low, and that the temperature is warm - warming the can by placing it a bowl of water as hot as you can place your hand in also helps.

Thanks, Owen! Any thoughts on a fix for it, other than manually removing all of the flakes with an eraser or cotton swab?

Z0mBe

Owen E Oulton · Post by **Owen E Oulton** » Thu Apr 21, 2005 5:14 pm

Nope. Once they're there, they're there. The olny solution is to physically remove 'em, either by the methods you mention, or by simply stripping the model and repainting.