Nasty Browning Crud - MicroSol / MicroSet?

FatherRob · Post by **FatherRob** » Tue Jun 26, 2012 1:17 pm

Last fall, I finished my Weefit model... I am starting to notice several areas (usually in the deflector grids) where a brownish crud is forming. I wallpapered it, so I am assuming it is the Decal solution that caused it.

The decal solution also rusted out my hobby knife almost instantly.

I can replace the knife, but I don't want to toast my models months after they are completed.

Any hints on what I did wrong, and how I can prevent it in the future?

Mr. Badwrench · Post by **Mr. Badwrench** » Wed Jun 27, 2012 4:51 am

Decal setting solution is mostly vinegar, so maybe something is growing in it. Mold or rot. Did you put a clearcoat on top of the decals once they dried?

FatherRob · Post by **FatherRob** » Wed Jun 27, 2012 7:20 am

Mr. Badwrench wrote:Decal setting solution is mostly vinegar, so maybe something is growing in it. Mold or rot. Did you put a clearcoat on top of the decals once they dried?

Yes, I did two layers of clear coat (dull).

Rob+

Kylwell · Post by **Kylwell** » Wed Jun 27, 2012 11:15 am

As the acetic acid (the active ingredient in vinegar) solution in the MicroSol (or is it MicroSet?) dries out it gets more concentrated. I've had a bottle near the end of it's life go a bit brown and tossed it. That's my only guess it that the solution is oxidizing giving you a brown stain. You could have most likely wiped it off it it hadn't been clear coated. Not sure how to fix it now.