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View Full Version : Dipping VS. Blasting



88 Turbo Coupe
02-22-2004, 11:22 AM
Has anyone had a good experience with dipping metal parts vs. media blasting? I thing blasting would remove metal which would weaken the metal.

x.system
02-22-2004, 12:34 PM
That depends on the material you use to blast with. Walnut shell and polly beads will remove paint only. Aluminum oxide is a little rougher material but its still aluminum so it shouldn't damage metal at all. I blast with fine sand all the time and the parts always turn out really good. I use a heavyer sand if theres alot of rust but these are usually really thick metal parts so if it takes off a little metal I'm not worried about it. I don't know of any place around me to try metal dipping so I'm stuck with blasting.

88 Turbo Coupe
02-22-2004, 01:34 PM
I'm considering blasting a old chrome moly frame. I just don't want to mess it up. Once the metals gone, it's gone. And don't want to weaken the frame at all. I have a 80gal 2stage comp. rated at 28cfm and a 100lb vessel sandblaster. I know first hand what damage i can inflict when using a 0 grit sand. I now only use a triple 0 for all blasting unless its real heavy rust. Maybe i'll try some other media??

x.system
02-22-2004, 02:14 PM
If your worried about the fine sand maybe try silicon carbide, aluminum oxide or glass bead. The cheapes of these is the glass bead, about $35 for 50lb bag and the most expensive being silicon carbide at $80 for a 50lb bag. Aluminum oxide is about $40 for a 50lb bag depending on where you buy it.

84250r
02-22-2004, 05:28 PM
Heres some pics of my parts that have been sandblasted with fine sand. The guy that sandblasted them does an excellent job,i might say. ;)

http://images.cardomain.com/member_images/2/web/518000-518999/518973_3_full.jpg

http://images.cardomain.com/member_images/2/web/518000-518999/518973_4_full.jpg

http://images.cardomain.com/member_images/2/web/518000-518999/518973_5_full.jpg