mainor5251 Posted March 31, 2011 Share Posted March 31, 2011 I only buy used equipment and the best deals usually involves equipment that needs some TLC so I thought this might be a useful thread. My usual routine is sand machines using a combination between a orbital palm sander and a little hand sanding. Then comes cleaning, normally just by hand in the sink. Next prime, paint, and clear coat all with spray cans. Using this process the machines come out alright but I feel with the right equipment I could do a lot better, with a paint job that not only looks better but is also much more durable. So with that said I'm now in the market for a sandblasting cabinet and a high volume low pressure paint sprayer. Link to comment Share on other sites More sharing options...
Hillbilly Posted April 1, 2011 Share Posted April 1, 2011 I couldn't do without my mini air grinder. Or my 3- 1/4" ratchets and extensions. Yeah I actually have 3 I use cause I am always laying it down and losing it. I really like my set of flat files too. I use them a lot. And my rubber mallet. My wish list includes a really good pair of tin snips(started making my own chute covers), A good vise that I can mount to my bench, and a long flexible shop air hose. Link to comment Share on other sites More sharing options...
lak20019 Posted April 3, 2011 Share Posted April 3, 2011 I only buy used equipment and the best deals usually involves equipment that needs some TLC so I thought this might be a useful thread. My usual routine is sand machines using a combination between a orbital palm sander and a little hand sanding. Then comes cleaning, normally just by hand in the sink. Next prime, paint, and clear coat all with spray cans. Using this process the machines come out alright but I feel with the right equipment I could do a lot better, with a paint job that not only looks better but is also much more durable. So with that said I'm now in the market for a sandblasting cabinet and a high volume low pressure paint sprayer. I used my dads sandblasting cabinet one time to do a machine. I couldn't stand it, it took FOREVER. Now I just use a paint stripper, and a dremel tool w/ sandpaper to get to the metal before I paint. Link to comment Share on other sites More sharing options...
Hillbilly Posted April 3, 2011 Share Posted April 3, 2011 I used my dads sandblasting cabinet one time to do a machine. I couldn't stand it, it took FOREVER. Now I just use a paint stripper, and a dremel tool w/ sandpaper to get to the metal before I paint. Even though it took longer,was the surface better prepared for the paint? What about using it for really rusty candy and gumball wheels? The kind that are made from aluminum and have that white patina on them? Or mech's that are pitted really bad? Link to comment Share on other sites More sharing options...
lak20019 Posted April 3, 2011 Share Posted April 3, 2011 Even though it took longer,was the surface better prepared for the paint? What about using it for really rusty candy and gumball wheels? The kind that are made from aluminum and have that white patina on them? Or mech's that are pitted really bad? Y'know, I honestly don't think it made the surface any better for the paint, I still had to sand it after wards to get it smooth to paint, and the result was the same as if I had treated the rust and then sanded it. However, you make a great point about using it for rusty parts, I did have rusty rods that I used the sandblasting to get them back to normal, and I'd imagine it would have the same effect for the wheels and mechs. I guess the sandblasting has its place for rusty parts, but I just didn't see it worth the time for bigger areas. Link to comment Share on other sites More sharing options...
easyvtec Posted May 15, 2012 Share Posted May 15, 2012 lak your blasting setup must suck. I can strip a machine ready to paint in less time it takes to hand sand one side of a machine. Proper cfm is key. As well as what abrasive is being used. Link to comment Share on other sites More sharing options...
Hillbilly Posted May 15, 2012 Share Posted May 15, 2012 Can you give some specifics. Like what kind of machine, what medium you are using, proper air pressure, cabinet size, and so forth? Link to comment Share on other sites More sharing options...
easyvtec Posted May 16, 2012 Share Posted May 16, 2012 Well there are lots of variables. Any compressor that will run 10-20cfm is sufficient. The larger the tank the less waiting. I've had great success with medium glassbead 90-150 grit size I usually blast at about 70psi. Walnut shell and plastic media is also really helpful for more fragile parts although it is much more expensive, My cabinet is rather large I refurb alot of autoparts. What are you working on I would love to help. I just recently caught the vending bug if anyone knows where I can find a few routemaster's that would be awesome! Link to comment Share on other sites More sharing options...
dogcow Posted May 16, 2012 Share Posted May 16, 2012 i've used a similar set up to above, it is still very slow to get off powdercoating we use a chemical paint stripper which is far superior and removes layers of paint iin just a few minutes then we blast it to rough the parts before coating Link to comment Share on other sites More sharing options...
easyvtec Posted May 16, 2012 Share Posted May 16, 2012 I blast powdercoated car wheels in minutes man. Something isn't up to par on your blasting setup.. Link to comment Share on other sites More sharing options...
dogcow Posted May 16, 2012 Share Posted May 16, 2012 I blast powdercoated car wheels in minutes man. Something isn't up to par on your blasting setup.. im moving the whole thing to a new warehouse when we get it set up again ill take some pictures maybe you can tell me whats wrong with it. from the sounds of it (psi, media) we are using the same set up as you described. Link to comment Share on other sites More sharing options...
easyvtec Posted May 16, 2012 Share Posted May 16, 2012 dogcow are you using a pressure pot setup or just siphon feed? That makes a world of difference! snap some pictures when you get set up! -Easy Link to comment Share on other sites More sharing options...
dogcow Posted May 17, 2012 Share Posted May 17, 2012 dogcow are you using a pressure pot setup or just siphon feed? That makes a world of difference! snap some pictures when you get set up! -Easy siphon feed ,is that the difference? Link to comment Share on other sites More sharing options...
easyvtec Posted May 17, 2012 Share Posted May 17, 2012 definitely the reason. With siphon feed you have to run a continuous amout of pressure usually 90+ psi with a pressure pot you can run 50-70psi with the same amount of media to air mix its night and day between the two setups. -Easy Link to comment Share on other sites More sharing options...
dogcow Posted May 17, 2012 Share Posted May 17, 2012 thx what kind do you recommend, does harbor freight have something that would work? Link to comment Share on other sites More sharing options...
dogcow Posted May 17, 2012 Share Posted May 17, 2012 my parnter said he is concerned that using a pressure pot or higher psi could warp the substrate (friction/heat)...he says he tried 100psi and did not see any better results. Link to comment Share on other sites More sharing options...
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