Tried My New Sandblasting Attachment For Pressure Washer Today (pics)

[72GMCburban]

Awesome stuff, I wonder if high end white sand from a quarry would work, it's really fine and still much less than actual media

[72GMCburban]

So if you throw some walnut shells or other media that does not warp one should be ok? I saw Northern had 4 or 5 different medias.

[red69ss]

it came with a list of different types of media you can use and suggested different ones for different situations ,but I'm going to use sand we have used it on body panels many times and never had a problem and I think water should even lessen the chances of any warpage,just my 2 cents.

[Brock]

Jim...this may be too much info but you did ask...

http://en.wikipedia.org/wiki/Venturi_effect

[lks dcvn]

Any updates on usage or pix of items that you have used it on?

I am considering buying one of these...

Thanks!

[ChaseDale3and8]

Originally Posted by earl87gta

I would like to see how well it does on a frame. I need to have my frame done and this may be an option.

I was thinking the same thing when I first started reading this post. If any of you try it, be sure to post up the results because I am very curious how this would work. ...Joe

[herb101]

I went ahead and bought one but have not had time to try it yet. This post must've had some affect, because Northern was out of stock at the store and online - mine was backordered from the online store for about a week.

I am going to cut it's teeth on some ebay fodder I need to sell after cleaning out one of my storage sheds. If all goes well enough, the Scout will get body panel guinnea pig duty.

Herb

[ronh72c10]

Originally Posted by AusMarty

Sandblasting is like hitting your panels with a ball pein hammer thousands of times and when you do that it stretches the panel which is what causes the warpage, I hand strip the main part of the panel and blast around the edges

Just to chip in here, AusMarty is correct, you're peening the panel when sandblasting. Heat is not an issue with sandblasting, I've never seen anything come out of the blast cabinet that was even remotely warm, no matter how aggressively I've blasted it.

Different media would be a better idea, the professionals use plastic media to strip paint on body panels.

Ron

[lks dcvn]

Well...

I bought the kit from Northern - (still in shipping) - it should be here next week and I also have a frame to test it on...so we can see what happens.

My frame has only surface rust - no scale.

I will have plenty of pix - stay tuned...

[myoldchevytruck]

How about using Baking Soda (the kinda you use in a soda blaster- I think it is even finer then the type you use in the refrigerator). The soda blaster process is not as damaging as the sand. Could the soda media possibly work with the pressure washer setup?

[barraza]

Originally Posted by myoldchevytruck

How about using Baking Soda (the kinda you use in a soda blaster- I think it is even finer then the type you use in the refrigerator). The soda blaster process is not as damaging as the sand. Could the soda media possibly work with the pressure washer setup?

Don't use soda!! Some paint manufacturers are starting to caution adhesion problems when painting over soda blasted metal

[Scott68-93-97]

When Lou used it on Muscle Car he used it on a frame and said it was to heavy for the body panels with the amount of pressure from the blaster but maybe it was just the type of media he was using

[msgross]

Just ordered one, thanks for the link...

i'll post some pics when I get it...

[Sammy]

When using SODA for blasting you need to use the etching primer that prevents an adhesion problem. Without the proper primer you would have a adhesion problem. I was told after using soda you use a mild detergent & water blow dry with air then etch prime. I know of a person who didn't and the regular primer never stuck on his cowl it had to be re-blasted.

[wrapumup]

Do you guys use the spray gun attachment with it or can you use it without?

[msgross]

This item requires a pressure washer. If you want to blast on your own you need the full setup like on Eastwood with a pressure tanks etc...

[Orange]

Just a note to anyone that has a pressure washer and is just experimenting...
If you don't already, pick you up a GOOD rotary nozzle. They are pretty volatile when it comes to eating up stuff. I have one like so:
http://www.pressureparts.com/Pressure-Part-2640855.aspx

If you have paint peeling, you can get the rest of it off. It would easily clean up to bare metal if you are just getting off caked up crud, etc. They are LOTS more effective than the standard nozzles.

Now, back to the blasting talk.
You might want to check this out as for the different blasting medias - there are a lot of sites out there like this:
http://www.kramerindustriesonline.co...ting-media.htm
http://www.kramerindustriesonline.co...tion-guide.htm
http://www.kramerindustriesonline.co...ison-chart.htm

DLB

[wrapumup]

Yes I knew it needed a pressure washer and we have one, I just wondered if there was anything else I needed besides this attachment, thanks.

[wrapumup]

Orange, are you saying to use this nozzle separtely from this attachment for other purposes or in conjunction with? I am just trying to find out the best thing to use for the least amount of money. I at least need to try to clean and paint my frame.

[msgross]

You will not need anything else to do your frame except media. I used Black Beauty Coal Slag ($10 per 100lbs) on my frame. I blasted my frame myself (never again) with a normal blaster and painted it with this stuff. www.nomorerust.com That's my frame on their homepage. Used a foam brush and it looks like powdercoat.

This attachment is the cheapest but won't take off the heavy duty rust like my frame had. I would fork out $250 and have it blasted professionally if yours is like mine was. If it just need cleaned up a little then use the northerntool pressure washer piece...

[Orange]

Originally Posted by wrapumup

Orange, are you saying to use this nozzle separtely from this attachment for other purposes or in conjunction with? I am just trying to find out the best thing to use for the least amount of money. I at least need to try to clean and paint my frame.

That nozzle would work independently of the sand blaster.
It is just a pressure washer nozzle (just sprays water at crazy high pressure in a rotary pattern). They are really good IMO.

DLB

[LostMy65]

I'm thinking of getting this for my 4000psi washer.

Anymore opinions about this method?

Here's a couple comments I found by using google:

OK, lots of conjecture here, not much real EXPERIENCE.

I own one of these and have for several years. You can get them at Northern for about $60.
http://www.northerntool.com/webapp/w...6970_8520_8520

They RAWK for greasy/nasty jobs.

I used this on my axles which were way funkified, and it took everything down to the core FAST.

Things I have learned:

1) Use pool filter sand, HD sells this for about $5 for a 50# bag. I do a lot of it out in the yard, it's good for the grass. Play sand won't cut it, too many rocks/crap. Since it's wet, no need to worry about free silica.

2) your media HAS to be DRY or it won't feed right.

3) As mentioned previously you have to be ready to paint it NOW. I mean it was changing color before I really even finished for some of the longer jobs. I typically just spray it down with brake cleaner and prime immediately after.

4) The better the pressure washer, the better the job. I used a 3000PSI and it was good/faster than anything I could do in a cabinet.

5) Not good for fine work, but for large jobs like frames, axles, and such works well. I have also talked to several others who use this and say it's good for sheet metal in that it cools as you blast so it won't warp the panel.

Hope this helps.

And another:

First off I have one I bought at Walmart for my honda powered pr. washer 2800 lbs and about 2.5 gpm. The price was about $20 and the ends fit my washer. THEY DO NOT BLAST under high pressure. mine blasted with the snad blaster taking the place of the high pressure nossle BUT they work great and I have always wonder why no one else has used it. The sand is mixed with the water and that helps reduce airborn silica. and flash rust will occur with any blasting. I have use phosphate solutions that mix with water. There is not the problem with warping of the sheet metal. I also have a commercial pressure blaster tanke that I did my old truck with heavy gage metal that worked great. Both cause a big mess. Ed ke6bnl

[LostMy65]

Another good thread on the topic.
http://www.jeepforum.com/forum/f8/pr...aster-1244595/

[LostMy65]

The general complaint is flash rust.

I can't find the thread now, but I think I remember reading that the flash rust is mostly the result of the minerals in the water.

I have a couple filters that I got for washing my car that takes the minerals out that cause water spotting.

My thoughts are to run the water through these filters then to the pressure washer.
Then do rinse again with just the pressure washer to clean nooks and crannies that sand might have settled in.

[sleepertruck72]

Sorry but I had to