Wanted Bentone

[casted]

It in Engineer hand books before ww2.
The used in big foundries

Dave

Yep I know I worked for 4 back east I still say. What

On cement but works then this was in 1990 now I have not tried since
May i say whatever works and safe and cost wise

That's what we go with or there's all ways more then one way

Neat stuff. I do ask a goal is a finish you never have to touch. A great dream just pour and. Bam perfect part comes out ready

We can,dream. I try to do this alot of test research and mainly is is safe

Try the moon sand play stuff just do this pack molds same way just note how the sand works
Lol we ate all kids still. So here silly,putty and sand make a great mix you see from my photos

Try it cost I use oosh smart sand the 1.1 lb pack. Cost 5 after tax 7.50 say per lbs

Still cheaper safer better results and reuse.
Wally Mart the got it all but cost per lbs

 

[SmithDoor]

Cement in foundry sand ?
.

Here data on using Portland cement .
I read about using Portland cement in the early 1970’s from browed book Per WW2.
Please reader thd Red under lined part . This late copy right I can not post the rest because copyright laws.

I will keep look for better data on RAMDONTION FOUNDRY SAND.

Dave

Published research and case studies on this subject are limited. As such, the use of foundry sand for this application is not well documented, and any use of foundry sand in Portland cement should be considered somewhat experimental.

 

[SmithDoor]

Yep I know I worked for 4 back east I still say. What

On cement but works then this was in 1990 now I have not tried since
May i say whatever works and safe and cost wise

That's what we go with or there's all ways more then one way

Neat stuff. I do ask a goal is a finish you never have to touch. A great dream just pour and. Bam perfect part comes out ready

We can,dream. I try to do this alot of test research and mainly is is safe

Try the moon sand play stuff just do this pack molds same way just note how the sand works
Lol we ate all kids still. So here silly,putty and sand make a great mix you see from my photos

Try it cost I use oosh smart sand the 1.1 lb pack. Cost 5 after tax 7.50 say per lbs

Still cheaper safer better results and reuse.
Wally Mart the got it all but cost per lbs

Using cement in foundry sand was before the chemical boned sand used today. From what remember on large machine tool and ship props would use rebar too in mold.

I hope to more data

Dave

 

[SmithDoor]

That seems to be on the pricey side.
.

I found Petrobond Foundry Sand is over price . It sold to small foundry where cost not big factor.
It took long time what read is K bond is where the data was found.
After EPA and cost when up natural bond was a lot better cost and EPA would not be looking at me using oil.

I was going to use Portland cement and try a little It work good just with all the leftover and I was use about 6,000 pounds of sand per day in week that 30,000 pounds. On upside if making one of kind/pattern it wast very strong and cheaper than sodium silicate.
The biggest was I did not have the time had to other things.

Dave