blast or dip - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kris's66lwb · 03-16-2007, 08:48 PM

i have a rusted cab on my 66 lwb and i have a pretty good spare cab and i want to get it dipped in an acid bath but the chems could leak from the cracks in the cab after paint so i was gonna sand blast it what are you experiences and recfomendations for a place that does dippind im in san diego

**Captainfab** · 03-17-2007, 12:05 AM

I would highly recomend to NOT acid dip your cab or any other body part. Just like you said the acid gets into the seams and every little nook and cranny and seeps out over time and will definitely ruin your paint job. When looking for someone to blast it for you, don't take it to someone that uses silica sand. The reason for that is the silica becomes imbeded into the metal and can react with some primers, resulting in a ruined paint job.

I have a good friend who has an abrasive blasting business that does blasting for all the big restoration shops in this area. What he uses for his blast media is copper slag....it's black in color, and doesn't leave any residue to react with the primer. Also it isn't as hazardous as silica sand.....breathing too much airborne silica can kill ya!

Sorry I can't help you with finding someone in your area, but I thought I'd let you know what I know about the two processes.

03-16-2007, 08:48 PM	#1
kris's66lwb resident wrencher Join Date: Dec 2006 Location: ramona california Posts: 720	blast or dip i have a rusted cab on my 66 lwb and i have a pretty good spare cab and i want to get it dipped in an acid bath but the chems could leak from the cracks in the cab after paint so i was gonna sand blast it what are you experiences and recfomendations for a place that does dippind im in san diego

03-17-2007, 12:05 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: blast or dip I would highly recomend to NOT acid dip your cab or any other body part. Just like you said the acid gets into the seams and every little nook and cranny and seeps out over time and will definitely ruin your paint job. When looking for someone to blast it for you, don't take it to someone that uses silica sand. The reason for that is the silica becomes imbeded into the metal and can react with some primers, resulting in a ruined paint job. I have a good friend who has an abrasive blasting business that does blasting for all the big restoration shops in this area. What he uses for his blast media is copper slag....it's black in color, and doesn't leave any residue to react with the primer. Also it isn't as hazardous as silica sand.....breathing too much airborne silica can kill ya! Sorry I can't help you with finding someone in your area, but I thought I'd let you know what I know about the two processes. Last edited by Captainfab; 03-17-2007 at 12:06 AM.



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