Sandblasting

[DannyD]

I have the trailer that I haul my Bota on that needs some serious repainting and rust removing. I am thinking (excuse for new toy) of a sandblaster, but having no experience with them, thought of the pros on here. I have an aircompressor that will do up about 85 pounds with no trouble. I can also reg that.

Any hints, suggestions, model numbers etc,. would be greatly appreciated

 

[RichNJKubota]

Danny,
It's not just PSI that you need to run a sandblaster. It's CFM. There are two types of blasters - syphon feed and pressure feed. The syphon feed blasters are a joke. You need a good pressure feed blaster. Check the specs for CFM on the sand blaster. I suspect your air compressor is too small.
Sand blasting is a messy and dangerous job. I've tried it and now I leave to the pros. It's well worth it for me to pay someone with an industrial sized blaster to do the dirty work. You can save money by doing all the prep such as removing all lights and wiring. Then you can prime and paint the trailer. That's alot of work without having to deal with the sandblasting.
But's that's just my 2 cents worth.
Rich

 

[Bird]

Danny, I've done some small sandblasting jobs, such as the toolboxes and drawers in a telephone company line truck, with just a one quart sandblaster and small compressor, but it took a LOT of time. I've also removed rotted wooded decks from two 5 x 10 utility trailers and sandblasted them with a Craftsman 100# sandblaster; still a very slow job. As has already been said, the volume of air (CFM) is the important factor, and you didn't say how much compressor you have, but I, too, doubt that you want to tackle that job with the one you have.

 

[wroughtn_harv]

Check around and you'll find a professional that will be able to the job for you at a reasonable price.

Just to give you some ideas of what it takes to effectively sandblast. My hood cost over three hundred dollars. It's got forced air for breathing and the recommendation is for at least a five horse compressor that will maintain 80 PSI to feed it.

While you can buy sand for five to six dollars a hundred pounds the good stuff can run thirty dollars for fifty pounds, ouch.

I can't put too much importance on the hood. Without a good one you're operating with a blindfold and a rolled up dirty sock in your mouth, no fun at all.

With all the equipment I have for doing it I will still rent or borrow a 185 CFM diesel compressor for a day next month when I spend a day sandblasting stone.

 

[BobReeves]

Once aquired an old Murphy in a door bed that needed some serious clean up and re-painting. Bought a cheap suction sand blaster, a bag of sand and went to work. I used my paint mask, a pair of safty goggles and my 3 HP compressor.

Worked fine but did take a while, comes down to if you have more time or money.

 

[DannyD]

Thanks All. I beleive that with all this great help, it is time to get out the body grinder and put on a wire wheel and try that first.............then get the pros on it.

Now I have more money for stuff FOR the tractor anyway!

/forums/images/graemlins/laugh.gif

 

[Lazy]

Hi
don't waste your time, just use some rustoleum primer check it out

http://www.rustoleum.com/Product.asp?frm_product_id=25&SBL=1&dds=17

charlie.

 

[Ozarker]

You might want to consider a Needle Scalier to clean up heavily rusted areas. Not good for sheet metal but great on frame rails etc.. It will get into corners and crevices that your grinder/sander can't get into and doesn’t require the CFM that a sandblaster does. It also doesn't kick up the dust and debris that a sandblaster does so it requires less protective gear to be worn. A quality dust mask, eye protection and hearing protection is sufficient.

Then wire brush the entire frame and coat it with a good rust converter as the primer. Then apply whatever topcoat you want.

 

[dourobob]

Here is a link to a discussion on sandblasting from a while ago. Lots of excellent advice from the experienced folks.

Hope it helps.

Bob

 

[SPIKER]

here is a link to some great info on rust removal and painting too it is on tbn

http://www.tractorbynet.com/forums/showflat.php?Cat=0&Board=buildit&Number=369107&page=0&view=collapsed&sb=5&o=all&fpart=1&vc=1&PHPSESSID=

http://www.tractorbynet.com/forums/showflat.php/Cat/0/Board/projects/Number/367735/page/3/view/collapsed/sb/5/o//fpart/all

that was a baterycharger rust removal and tractor painting of rusty & dirty metals. read them all and check the links. there aws also a link in one of the forums about the POUR15 rust convertor paints as well. it was new this weekend. and had some good lniks too.


sandblasting like others said, you need 25 CFM at 150 PSi or so to get anything done unless you are just spot blasting... also resperators are required silica can cause bad things to happen... and it is part of most sands.
anyhow Good Luck.

Mark M /forums/images/graemlins/smile.gif