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Wondering who has experience of the technique, I have a project to get ready for paint and have just found out there's a specialist shot blaster ( room, suite, breathing apparatus etc) five miles away.  Thing is what can you not blast on a  :wh:  please don't say tyres, seat etc.  :P  

Thanks for any input.  :handgestures-thumbupright:

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I blast everything on mine. Depends on the system you are using I guess. I have heard you can warp the tins. I have.a siphon gun and only run 90 psi. It's a little slow but it works for me. I'm sure some.of the experts will be more helpful.

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I used a wire brush on the motor and transmisson because I won't risk getting media it those vital components!

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I would not SHOT blast the tins.  The shot could  damage the tins and create a rough surface.     You would get a much better prep for painting with a sand or walnut shell media.

The media will find it's way into all openings including around rubber axle and shaft seals, breather cover opening, points cover opening, steering shaft bushings,  clutch cross shaft bushings.

All plastic items , knobs, steering wheel, etc. need to be protected.    I would be very leery of total blasting of an assembled tractor with out a tear down and thorough cleaning.

 

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Greasy stuff may not be accepted. If it is, it will add to the cost since it slows the process.

 

galvanized metal may not be accepted depending on whether they have mitigation in place....

 

 

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I too media blast nearly everything -- notice I said "I" and that is because I use relatively low pressure to blast with - about 100psi. Commercial blasters generally use much higher pressures and can indeed damage sheet metal. Feel out your contact about this and consider it before you commit.

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There are places that soda blast also, its much easier on sheet metal.

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Posted (edited)

i did my 857 yrs ago used silica sand and what they call a 100 pound blast pot with the silica sand supposed to wear breathing apparatus but this wasn't that big of a job. just wore a face shield cause it don't feel that good when it hitting your face. it did a great job blasted everything with paint on it then used da with 220 grit paper before painting

used my old craftsman compressor it did good but it overheated  while finishing up blasting and burnt up and i scraped it .  

 

where i work at a trucking company when i first started 28 yrs ago i did a lot  of sandblasting truck frames wheels  etc. not that fun of a job.  

Edited by briankd
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Thanks chap's, the process does sound a bit violent, I'll go and see the man and see what he says. If he could do the rims, frame and maybe the steering console that would help me on.  :text-thankyouyellow:

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I know everyone may not have access, but I glass bead blast my stuff and wire wheel the frame and transmissions. Glass beads are super soft and will not even damage aluminum. 

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I use red oxide grit in my blast cabinet with a 100 psi compressor and blast everything steel.   I agree with others and would not use a large industrial blaster on sheet metal.  I use glass beads on aluminum heads, etc.  

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