Pressure washer sand blasting

[puckgrinder85]

I can use similar sized tips on both my cabinet and pot with the same compressor and the pot will outblast the siphon 10 to 1 no problem.

 

[petegoud]

I've been using one I picked up at Northern Tool a few years ago. It works great, no huge clouds of dust contend with. Make sure you dry what you sandblasted right away, or it will form a thin layer of rust.

 

[juddspaintballs]

I used one of the northern tool attachments for the power washer when I was stripping my deuce and a half with CARC on it. The water kept the silica from the CARC at bay so it wasn't a hazardous material at that point. I found that using Black Diamond blasting media worked far quicker than play sand, and with the water it kept the sheet metal panels from over heating and warping.

 

[kenord]

Has anyone tried using one of these on an aluminum truck body?
Would it tend to pit and cause more problems?
Thanks in advance,
Rich

 

[ishiboo]

Has anyone tried using one of these on an aluminum truck body?
Would it tend to pit and cause more problems?
Thanks in advance,
Rich

The water method would probably have a big advantage, with dry blasting it's easy to overheat the metal and cause warpage when doing thin body panels.

It all depends on what you are removing though. Since aluminum does not rust, I assume you want to remove mostly paint and oxidation... in which case you'd want a lighter duty abrasive such as walnut shells.

 

[ishiboo]

Has anyone tried using one of these on an aluminum truck body?
Would it tend to pit and cause more problems?
Thanks in advance,
Rich

The water method would probably have a big advantage, with dry blasting it's easy to overheat the metal and cause warpage when doing thin body panels.

It all depends on what you are removing though. Since aluminum does not rust, I assume you want to remove mostly paint and oxidation... in which case you'd want a lighter duty abrasive such as walnut shells.

 

[puckgrinder85]

Or just soda blast it, no need for overheating, can wash the stuff into the grass if you want to.

 

[Kernopelli]

Still not bought one but was looking at Northern's again earlier this week. Here are some other comments about them http://www.tractorbynet.com/forums/projects/276644-wet-abrasive-sandblasting.html

 

[woodlandfarms]

I bought one a few years ago. It works. It is fussy with media. You also ant to make sure no water gets in the sand feed hose or you will have a problem.

 

[kenord]

thanks ishiboo and puckgrinder,
I have an early 70's Kenworth semi sleeper, all aluminum with rivets holding it together. some one painted two stripes around it, then , painted more stripes on top of them. it would be really tough to sand around all the rivets. so looking for some way to remove all the thick paint.