PDA

View Full Version : Dust nib solution


TheCoatingStore.com

laldog
09-02-2010, 06:25 PM
What's the best strategy for getting ouy dust nibs??

I resprayed with 3 coats of clear (some kind of PPG, NOT Ceramiclear) it relatively speaking, came out pretty good. A few dry spots, a bit of peel, but nothing of the magnitude of my first attempt. 45444545

I focused my attention on one of the doors, wet sanding with 1000, 1500, 2000 and then buffed out using some clear coat polish and a wool pad. I used a 2 inch hard rubber squeegee. and although I couldn't feel the dust nibs when I finished they were very visible in the finished door.

So obviously, I need to take a more aggressive approach.

Do I hit the nibs with a rougher grit (say 1000), focusing on the individual nibs, or do I have to sand the whole panel with the rougher paper?

Of course I'm scared to death because I don't want to sandthrough the clear coat (again), but the amount of dust nibs and the resulting high spots (for lack of a better term) force me to do something different.

Thoughts/suggestions ??

Thanks.

Len
09-02-2010, 07:39 PM
It's usually best to chop off the nibs before you start sanding. If you try sanding the nibs they will usually leave high spots in the finish. We use a fine Nib File for nibs and a coarse Nib File for Runs. Use NO PRESSURE on the file then sand with ultra-fine sandpaper before buffing.


http://autobodystore.net/Merchant2/graphics/00000001/NibFile.jpg
Nib File Link (http://autobodystore.net/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=PSH)

style
09-04-2010, 01:41 AM
It's usually best to chop off the nibs before you start sanding. If you try sanding the nibs they will usually leave high spots in the finish. We use a fine Nib File for nibs and a coarse Nib File for Runs. Use NO PRESSURE on the file then sand with ultra-fine sandpaper before buffing.


http://autobodystore.net/Merchant2/graphics/00000001/NibFile.jpg
Nib File Link (http://autobodystore.net/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=PSH)


Do those things really work I've been lazy on prepping on account that these. People in this town only want to pay 75bucks a panel lately and get all kinds of dirt from the jambs usually I wait a day to dry then da any imperfections with 500 then any fish eye or anything fill it with a needle and clear wait an hour then da the panel with 800 then 1500 then buff to look like a mirror I'm averaging 15mins a panel after paint.. including paint 30mins a panel with out drying time just da 800 cover car with plastic thencut out panel/s base then clear spray clear wet to wet..

Serge
09-04-2010, 11:59 AM
Mine are getting old......

Use it like a file, like Len said, no pressure...just scrape and the nib or run goes away...when flat switch to sand paper. Saves a lot of trouble...and time. Make sure the clear is cured though...

jaak
10-17-2010, 10:25 AM
Can you use nib files on SS urethane. I got a few dust nibs I need to get out before buffing.

Jason

Len
10-17-2010, 11:37 AM
Can you use nib files on SS urethane. I got a few dust nibs I need to get out before buffing.

Jason

Yes, I'd recommend the Fine Nib File for that and sand a little after removing the nibs with a file.