color sanding [Archive] - Chevelle Tech

: color sanding


67RAT
Aug 21st, 00, 3:53 PM
help,
I know some of you know better than me!
can a dime size sag on a cowl be sanded and buffed to get rid of it?,of course after a good week of drying,I know the steps but can you give me some Ideas,guess I hammerd the cowl a little to hard with the gun!
the paint is one step ppg urethane,help please!thanx 67rat member #199

drptop70ss
Aug 21st, 00, 5:21 PM
thats a lot of sanding! I color sand with 2000, which is ultra fine. The hard part will be trying to sand the drip without over sanding the surrounding areas. I wouldnt do it unless you plan on repainting the hood, cause if you sand too much thats what you will have to do...maybe if you protected the surrounding area with masking tape or something you could do it.

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Dave (NY)
70 chevelle ss396 conv
66 chevelle ss396 hdp/conv
55 chevy prostreet
69/71 camaros
TC member #493

Hot66ss
Aug 21st, 00, 7:20 PM
If its a drip you need a nib file. It files off the heavy paint of the run and brings
it down to (almost) level. Then you allow the vehicle to sit for a day or two then using a
run with some 400 or 600 wet then switch to 1200/1500 then buff. These products are quite inexpensive compared to other tools ($15.95 ea.) but are a must if you want to remove the runs properly. If you just sand you'll find that you'll end up goingthru the top coat before the run is leveled.

Have not tryed it this was on a so I hear basis

Good luck

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Thomas (AKA Hot66ss)
66 Super Sport
67 Malibu Daily Driver
Aces Member 2380
Team Chevelle member #262
members.aol.com/chvellss (http://members.aol.com/chvellss) <-- Under Temporary Permanent Construction Just Like My 66

70isfine
Aug 22nd, 00, 3:13 PM
try sanding with a flexible block or rubber squeegie.that should help to sand only the high spot,but be prepared to repaint the area. if you sand thru

Glenn Kent
Aug 23rd, 00, 12:26 AM
Use a razor blade in a scraping motion to get it down some and then use 500 (wet)on a FLAT straight board (I'm sure you have something that will work)When you're close to flush, finish with 1200 or finer, then polish. It works, trust me.

MARTINSR
Aug 25th, 00, 1:53 PM
As has been pointed out the hardest part is not to cut the surrounding paint. Years ago I cut a rubber sanding block in two pieces. Leaving one that is about 1/3 of the width and the other of course 2/3's This little 1/3 block works great for these projects. Use 600 grit to hut the majority and then go down to 800 when it is getting close and down to 1200 then 1500 and finally the 2000. The trick is to not wait till the run is gone when you switch to the 800. Switch BEFORE you are done with each grit.