Media Blasting vs. Wire Brush

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xraycajun
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Media Blasting vs. Wire Brush

Postby xraycajun » Wed Nov 01, 2017 2:44 pm

I'm getting ready to do some paint removal on the '53. I've been on the site long enough to know how you guys feel about sandblasting your tractors. I currently have a couple 4" wire wheels on a standard drill. That setup took me a month to clean up a boat trailer. Are there faster methods/products. What about those flap wheels that mount on sidegrinders? Those wheels that look like dish scrubber pads? Anyone have luck with those? Is there anyone who sandblasted and did not have serious problems? Also, what is my best order of operations... Paint removal, repairs, new paint.... or repairs, paint removal, new paint. I would not paint first, of course, because my new paint would be ruined. Any past experiences appreciated.

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Re: Media Blasting vs. Wire Brush

Postby ShawnAgne » Wed Nov 01, 2017 2:50 pm

I used 100/120gr Garnet media and it worked ok didn't harm the parts. Also use 80gr Aluminum Oxide that seemed to work ok also. The former obviously took the paint off faster. Used the Al on the cast parts, but use the garnet on sheet metal. But I've found that a wire wheel on an angle grinder goes pretty fast then I use the blaster to get the stuff off it can't get. What problems have people had with blasting? When my Cub decided to grab the swing and climb the swing set I had the parts repaired, then removed the paint, then dressed up the weld, then painted.
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Re: Media Blasting vs. Wire Brush

Postby xraycajun » Wed Nov 01, 2017 3:04 pm

Thanks, I hear stories of the media destroying seals and such... so I became apprehensive about blasting.

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Re: Media Blasting vs. Wire Brush

Postby ShawnAgne » Wed Nov 01, 2017 3:07 pm

Oh well yes it would do that possibly. Before I had my cabinet I had my finals blasted and the guy who did the work taped everything off and then I flushed what little bit of media out that did get in. Haven't noticed any problems with them yet. Parts I was referring to were blade parts, lights, etc. that didn't have any seals on them. Why I was confused.
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Re: Media Blasting vs. Wire Brush

Postby KC2LLW » Wed Nov 01, 2017 3:24 pm

What about soda blasting?? A lot less abrasive and not hard on seals, then blow off with air and clean up with acetone.

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Re: Media Blasting vs. Wire Brush

Postby ScottyD'sdad » Wed Nov 01, 2017 4:27 pm

Sodsa media isn't damaging, like the other grits. However, the rust and paint residue, are abrasive, and can be driven into places, by the pressure. People who live in areas with dust storms, can tape their windows and doors, before a dust storm, and still write their names in the dust, on the kitchen table, after the storm. (The dost storm isn't working at 120 PSI)
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Re: Media Blasting vs. Wire Brush

Postby ShawnAgne » Wed Nov 01, 2017 5:43 pm

Agree if you're going to blast its probably best practice to take the parts apart or just replace the seals.
Shawn Agne

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Re: Media Blasting vs. Wire Brush

Postby LRiddle » Wed Nov 01, 2017 5:59 pm

Media can also play havoc on your charging system.
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Re: Media Blasting vs. Wire Brush

Postby Jeff Silvey » Wed Nov 01, 2017 7:01 pm

Remember to be safe, wear your safety glasses while doing the blasting & wire wheeling.
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Re: Media Blasting vs. Wire Brush

Postby Lt.Mike » Wed Nov 01, 2017 7:39 pm

I use a needle scaler as shown below. Anyone who was in the Navy knows what that is.
It blows right through old Farmall paint and rust without ruining seals, blowing dust it the air or piercing your forehead with wire bristles.

https://youtu.be/t6f-Smtph8Y

This is the one I have. I have the smaller model too but it isn’t as good as the large unit.
https://www.harborfreight.com/air-needl ... 61447.html
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Re: Media Blasting vs. Wire Brush

Postby Lt.Mike » Wed Nov 01, 2017 8:06 pm

One other note about wire brushing. The other day after working on refinishing my truck rims I was washing up and noticed something hard in the skin below my knee. Using tweezers I pulled a 1/4” wire out of my leg. All but the very end was embedded.
That’s the joy of wire brushing. :roll:
I wear a full face shield when brushing.

Oh ya, you can’t hurt yourself with a needle scaler. Run it over your hand and it does nothing but blows old paint off like magic. :wink:
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Re: Media Blasting vs. Wire Brush

Postby xraycajun » Thu Nov 02, 2017 7:39 am

The other day after working on refinishing my truck rims I was washing up and noticed something hard in the skin below my knee. Using tweezers I pulled a 1/4” wire out of my leg. All but the very end was embedded.


I hear 'ya on the safety bit! Face shield, gloves, the works, and those wires still get everywhere! My wife got one in her foot weeks after I wirewheeled a few small parts off the farmall. I think it migrated into the house somehow.

My first choice is to find a reputable shop to perform blasting... then tape off around the seals and ask the person to avoid the taped areas. I plan on removing the wiring and all electrical parts. I already removed the wheel weights hoping to lighten the tractor enough to roll it on and off a trailer.

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Re: Media Blasting vs. Wire Brush

Postby Stanton » Thu Nov 02, 2017 9:15 am

If you're going to use a wire wheel, then get an inexpensive 4-1/2" angle grinder and a twisted wire wheel. No worries about abrasives getting into your seals or other places, but DO wear eye protection. Cheaper route than a sand blaster; considering initial cost of all equipment and supplies.
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Don McCombs
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Re: Media Blasting vs. Wire Brush

Postby Don McCombs » Thu Nov 02, 2017 10:55 am

xraycajun wrote:... then tape off around the seals and ask the person to avoid the taped areas ...

This "sounds" like a good plan, but in reality, will not be very effective in protecting seals and bearings. If you go the media blasting route, plan on replacing everything.
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Stanton
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Re: Media Blasting vs. Wire Brush

Postby Stanton » Thu Nov 02, 2017 11:02 am

Don McCombs wrote:
xraycajun wrote:... then tape off around the seals and ask the person to avoid the taped areas ...

This "sounds" like a good plan, but in reality, will not be very effective in protecting seals and bearings. If you go the media blasting route, plan on replacing everything.


Agreed. And if your Cub is in running condition, the chance of getting grit inside the engine is high; especially if someone else is doing the blasting. If blasting, I'd stick to the non-running parts and wire wheel the engine.
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