Wet sandblasting

[macdoesit]

Wet sandblasting my brush hog with a 28.00 Amazon wet sandblaster. Wet sandblaster well worth the money. Will paint Kubota orange. Next project is to wet sandblast the smoker firebox surface rust on 3/8 " thick sheet iron and paint.

set sand in a bucket in back of truck, if sand gets wet it will clog the tube.

10 minutes of blasting left side only, and one 50 lb bag of sand. I figure 9 bags total 45.00 and an hour and a half labor.

Sand all over trailer and on 3300psi washer about 25 feet away.

 

[bmaverick]

hmmm, where have I see this before ....

 

[3Ts]

Why the wet sandblaster instead of the usual dry sandblasting? What are the benefits of the wet over the dry? I use the dry with good results and can recycle some of the sand.

 

[HawkinsHollow]

Can you explain how this works? Never heard of wet sandblasting.

 

[beeforty]

I believe you are using a pressure washer that siphons the sand out of the bucket, the water keeps the temperature down on the metal, if I understand it correctly so less warp-age on thin sheet metal, plus you are not creating a dust storm.

 

[macdoesit]

My Pressure washer adds 3,300 PSI to the mix, a lot more than air.
Go to youtube "wet sandblasting"
For me I will never go back to grinding, air sandblasting, or chemicals. Less time, less work.

 

[bigtiller]

My Pressure washer adds 3,300 PSI to the mix, a lot more than air.
Go to youtube "wet sandblasting"
For me I will never go back to grinding, air sandblasting, or chemicals. Less time, less work.

I have never been around a wet-blaster. It seams like the metal would start rusting as it dries. Is this possible, or am I way off base here?

 

[macdoesit]

I have never been around a wet-blaster. It seams like the metal would start rusting as it dries. Is this possible, or am I way off base here?

Mine has no rust after drying in hot sun

 

[5030]

I have never been around a wet-blaster. It seams like the metal would start rusting as it dries. Is this possible, or am I way off base here?

EXACTLY and why I never do that, always dry and always Black Diamond.

You wet sandblast and surface rust immediately starts forming. Not something I'm interested in one bit.

 

[macdoesit]

EXACTLY and why I never do that, always dry and always Black Diamond.

You wet sandblast and surface rust immediately starts forming. Not something I'm interested in one bit.

I'm doing a brush hog and there is no rust.

 

[JeepHead]

It works very well... the key is to use well dried sand and to keep it dry, otherwise it will clog up. One advantage for me is that my power washing trailer is mobile with 250 gallons of water. Take it anywhere for sandblasting...

 

[Piston]

Do you treat the steel with anything prior to priming? Clean it with a solvent first? I want to try the wet sandblasting as well.

What sand do you use? I seem to remember a youtube video that explained he tried one type of sand that wasn't fine enough, but then another 'type' of sand that worked very well.

 

[HawkinsHollow]

I watched a youtube video. Looks like it works amazingly and for $30 its a no brainer. It makes a mess thoughso I would do it smewhere you would not mind piles of sand. The guy I watched used medium masonry sand. Regular old sand has too much variation in grain size and it clogs up siphon he said.

 

[macdoesit]

Do you treat the steel with anything prior to priming? Clean it with a solvent first? I want to try the wet sandblasting as well.

What sand do you use? I seem to remember a youtube video that explained he tried one type of sand that wasn't fine enough, but then another 'type' of sand that worked very well.

-I use play sand, very dry, will not clog and cheap.

 

[macdoesit]

I watched a youtube video. Looks like it works amazingly and for $30 its a no brainer. It makes a mess thoughso I would do it smewhere you would not mind piles of sand. The guy I watched used medium masonry sand. Regular old sand has too much variation in grain size and it clogs up siphon he said.

Use play sand.

 

[mwayne]

We had a paint contractor wet sandblast a 4 water tanks for us due to lead paint. A skidsteer and crew put that spoil in roll off dumpsters and hauled it away. Then parts of the tanks were dry blasted and painted the same day.

 

[fc1]

Use play sand.

Wear your PPE if so...

https://www.jalopyjournal.com/forum/threads/play-sand-for-blasting-use.300470/

 

[macdoesit]

Wear your PPE if so...

https://www.jalopyjournal.com/forum/threads/play-sand-for-blasting-use.300470/

There is no need for mask, no dust. The play sand out of the bag is fine enough does not clog.

 

[fc1]

There is no need for mask, no dust. The play sand out of the bag is fine enough does not clog.

You do you, but if you're open blasting there's dust. Even if the sand was fully washed some grains will pulverize on impact.

Slag (black beauty) is far safer.

 

[macdoesit]

You do you, but if you're open blasting there's dust. Even if the sand was fully washed some grains will pulverize on impact.

Slag (black beauty) is far safer.

I wet sandblasted 12- 50 pound bags of play sand and there is absolutely no dust in wet sanding. A power washer puts out much more water than sand.