What grit sandpaper is good for sheetrock?

Answer 1

i'm not sure if you mean for the sheetrock itself or to sand the joints after mudding them. if you mean the joints, try one of those bone-shaped car washing sponges. keep a big bucket of water nearby and wet the sponge and use it much the same way you would use sandpaper. rinse it and wring it out frequently to keep it's porous surface unclogged. it's much less dusty and does a really good job smoothing the surface of joint compound. it will also work well for patched holes in walls.

Answer 2

Sandpaper will clog much to fast. Go and get the sanding screen they sell especially for sheetrocking applications

Answer 3

I prefer even a dull or slightly used 220. If it is a fresh sheet of 220 then use gingerly or you may over sand the joint and expose the paper - not good.

And if you want your walls to have a smooth finish vs. 'knock down' then finish the sanding with 320 if you are putting a skin coat on the entire wall. The wall takes the primer best this way.

And I sand between every coat of paint if you want a high end finish.

Answer 4

Use 120-160 for rough sanding and finish it off with 220 grit.

Answer 5

To smooth up the cut edge or what? For that I don't know but if you need to clean up some excess tape and bedding compound then fine grit is the way to go at least 220.

Answer 6

100 or 80 grit will work fine I have done drywall for 12 yrs just don't over sand it.

Answer 7

Try using medium grade sandpaper.

Answer 8

use the black open grid stuff,

make sure you use a sanding block so you don't add hand waves

if the mud is applied "right" not much sanding needed

(less is best)

Jewells
30 months and still here

Answer 9

120 or180

Answer 10

320 sanding screen to smooth joints.If you use a 10in knife you take your time you shouldn't need to sand at all