To month ago I finish my Dynatorch CNC plasma cutting table with water bed.
Everything is working fine; I use some drawings I find here on CNC ZONE from Hypertherm..

And for anti corrosion in the waterbed i use cutting oil like for a band saw
But is very messy.

Does anybody have any suggestions on this ??


Thanks laurits

To month ago I finish my Dynatorch CNC plasma cutting table with water bed.
Everything is working fine; I use some drawings I find here on CNC ZONE from Hypertherm..

And for anti corrosion in the waterbed i use cutting oil like for a band saw
But is very messy.

Does anybody have any suggestions on this ??


Thanks laurits

here is a recipe someone else has posted for home brew quench post # 4

http://www.cnczone.com/forums/showthread.php?p=452938

It's been over a month since I started using my table with the sodium nitrite mixture. I've got a good 1/2" of slag covering the bottom of the table but there's still no rust and the water almost looks clean enough to drink. ;) There is no trace of the blue dye anymore. :(

Yesterday I call some companies who are selling that stuff here in Denmark but is not easy
And many of them don’t know about it. One company can sell me 50kg $260 extra feeds for small order and +shipping... Another company says that I need chemical permission from the police before I can buy .. my waterbed is on 3700liters so think I need 1.5kg of sodium nitrite

Also yesterday I send a email to Torchmate and ask how much the Plasma Quench does cost
No answer yet..

Does anybody in here know what Plasma Quench cost??

for anti corrosion in the waterbed i use cutting oil like for a band saw
But is very messy.

Does anybody have any suggestions on this ??


I use washing soda (laundry type).

For 40 imperial gallons, 1-1/2 cups of washing soda is sufficient to prevent rusting in my water table.

Try Plasma Quench http://www.koalindustries.com/plasmaquench.html This is what I use in my table. I think it cost $250 for what I needed.

I was doing a little research last night and found the perfect Mix, it was 1.5 oz Crown Royal , 3 Ice cubes, and 6oz Water , :)

I use plasma quench as well. I think it cost me around $35 for 5 gallons. It treats around 150-200 gallons. According to the MSDS sheets, it's primary component is sodium nitrite.

Ever thought of using sacrificial cathodes? Bolt a few zinc blocks spread around in the waterbath. It is used widely in marine systems.

Whacko