Sanding Questions, Wet/Dry Grits [Archive] - Chevelle Tech

: Sanding Questions, Wet/Dry Grits


feedphillipnow
Jul 1st, 04, 4:43 PM
Just wondering What grit wet/dry should be used before paint, 1500? Also what should be used on the clear coat, and how long to wait? Any tips on wet sanding the clear would be really helpful.

What is better with buffing/ polishing pads? The foam ones or the wool ones? Should I use it on my drill or my angle grinder? Not sure what a reccomened RPM is for this.

BowtieAaron
Jul 1st, 04, 4:49 PM
i think when we did my car we did 220 wet for the primer,and then we painted it. i belive u just spray the clear over the base and you are set. then u use i think 1500-2000 grit wet and buff out, and it should look awesome.

we just used a single stage on the velle, and i will be re-painting it again because there are so many spots that were missed.

hope this helped.

aaron

feedphillipnow
Jul 1st, 04, 5:12 PM
Thanks Arron, Ive read alot of old posts. Sounds like what I was thinking. This is going to be a long weekend :D

BowtieAaron
Jul 1st, 04, 5:26 PM
no problem, just remember, take your time. also u want to spray your base and your clear the same day.

btw, ur velle is looking badass man.

aaron

JohnC
Jul 1st, 04, 5:28 PM
Not an expert my any means, but I've heard most people wet sand with 400 just before paint. I've heard a few say 600, but not too many go less than 320 grit.

Got_CID?
Jul 1st, 04, 5:36 PM
Used 1500 grit with a little soap in the water to color sand mine (after clear) and its working great. Switched to 2000 grit on some of the tricky areas like the pinstripes on the hood and trunk so I wouldn't burn through the clear.

feedphillipnow
Jul 1st, 04, 6:21 PM
Thanks! smile.gif Ive almost got everything on my list. It seems neverending sometimes for last minute stuff.

When color/wet sanding with 1500/2000 on the clear what kind of pattern is best to go in? back in fourth by hand, circles? Make a diff?

MO_chevelle
Jul 1st, 04, 7:18 PM
For the buffing, go with a foam pad, wool can be too rough.

BowtieAaron
Jul 1st, 04, 8:57 PM
you would want to go in a back and forth motion w/ a block, dont sand w/ your finders, because you will leave ripples from where you sanded and where it missed (mainly between fingers).

aaron

Got_CID?
Jul 1st, 04, 10:01 PM
Definatly get a block for the flat surfaces, although you may need to use your hand for the more contoured surfaces. 3M also makes a small 2x2 black squeege(sp?) that works great to remove the water from a surface quickly to see if you've sanded enough.