What kind of sealant for custom background?

[leet13]

Hi all. Some of you have seen my background progress thread and I am about to start painting over the grouted background. I am going to use acrylic paint (plus windex so i can use it in my airbrush)-- I need some kind of sealant to cover over all of this and NOT make the paint bleed or run. I also would like something with a matte finish or slightly glossy finish. Is there a specific one I can get at Lowe's or Home Depot?

The only experience I have with anything close to this is using Silmar 249 resin over carbon fiber for some stuff I did for my Corvette. I certainly cannot use that one over my background because it will not be safe for my panther.

Thanks.

 

[Turningdoc]

You can use plain clear acrylic sealant. It is animal safe when dry.

 

[leet13]

Thanks!!!!! :d

 

[nightanole]

http://www.minwax.com/wood-products...hes/minwax-water-based-helmsman-spar-urethane

ive been using this for over a decade. It doesnt yellow like some stuff, and its water clean up for the kids or "beauty rings" that the cans leave during amateur hour.

 

[leet13]

Thanks for the link!

 

[leet13]

Found a non toxic one at home depot for 30 bucks! I had no idea sealants could cost so much per bottle or gallon (one was 98 bucks a gallon)!

 

[spawn]

Grout or drylock are used in dart frog vivariums.

 

[EvilLost]

@spawn: he's referring to a sealant to go over the grout.

Drylok is a latex-based "paint". I would VERY strongly recommend against it for being used directly on foam.

However, I highly recommend drylok if you are working with wood....