Best sandpaper for auto body filler

[WarnerConstCo.]

Time to increase my sandpaper stash.  I need to do a bit of sanding of auto body filler.  I use a few different variety's in my filling process. 

Some requires a lot of hand sanding too.  I had some Titan at one point and time that was pretty good. 

Maybe it is time to try out some of that Garnat, or whatever it is called.

 

[Peterm]

Granat. Great stuff, works very well with the 2-pack car body type fillers. I think someone here (Shane?) mentioned that it was developed for use in the auto industry, so I guess that's no surprise

 

[Frank-Jan]

I used the granat paper that came with my rotex 90 to sand autobody filler. When I sand the stuff by hand I use 120 gritt and get good results, but I found that with the rotex 90 I had to use the 220 gritt to get decent results (otherwise I would get swirlmarks) (I use the "easy sand" type of filler)