try looking into Sikkens brand of stains and paints, cost is high but most likely best on the market today.

What is she painting, inside, outside? wood, concrete? I'm no paint expert but unfourtunatly I've done alot of painting. I would think an expoxy based paint is the toughest. Then there is always stain. That would take the extreme expansion and contraction of materials better then a paint. Might be alot of us outh here that would like to know if there reallly is an extreme paint like that.

hello there, i'm a painter and i used to run a paint department… exterior paint is designed to withstand freezing temperatures and then bounce back to extreme summer conditions. and of course the better the paint, the longer it will last. my favorite is benjamin moore, but i'm not sure what will be available in mongolia. price is usually a good indicator of quality. someone mentioned sikkens, a very good brand, but i don't believe that they have much in the line of paint, mostly stain.
hope this helps
lj

Olympic makes a paint/stain that resists fading from UVB/UVA rays, heat and cold. Lowes carries it and it comes in a lot of colors. Consumer Reports recently rated it as one of the best for extreme conditions.

Go on the site of Dennis Lee, he's got that kind of paint, it even insulates!

what is the noise of one hand painting