I'm looking for sandpaper to add tooth to slick surfaces, as well as to smooth down rough parts of paint for touch-ups. What's the best for this?

I know Testor's makes a pack that includes extra and ultra-fine is that the best? Where can I get it without ordering? (A.C. Moore and Michael's don't have it)

Thanks!

 

Local hobby shop? The finest grit i've found in home depot was 800 or 1200, the stuff you're talking about, I've only seen in hobby shops.

 

Try an auto parts store! I believe you can find 3M brand there up to 2400 grit I think. Definitely finer than 1200 available. It comes in big sheets you can cut down and was around $5 if I recall correctly. 

 

Good old hardware store 220 & 320 wet/dry has always worked for me.

 

I'd be interested to know what grits Superquad7 uses. He hand paints all his work with several wet-sanding steps in between! His paint always looks flawless!