Poor mans sand binder

[100model]

Hi everyone

I have been doing some trials using portland cement as a binder for cores. Have a look at the video [ame]http://youtu.be/p70HljAu8Z8[/ame]

 

[tornitore45]

I studyed mechanical engineering in the 60 and the text book quoted Horse Manure as a binder. I am not making this up.

But I graduated as electrical engineer, so I am not a mechanical one.

I like your idea better.

 

[Lakc]

Looks good, but sodium silicate (waterglass) is only $15 gallon here, so not all that much cost savings.

 

[100model]

I wish it was that cheap in Australia!

 

[vederstein]

A few years ago I was watching the show Dirty Jobs and they were casting church bells. Yes, the binder was sifted manure.

...Ved.

 

[pgrayson]

A few years ago I was watching the show Dirty Jobs and they were casting church bells. Yes, the binder was sifted manure.

...Ved.

molasses works and smells better.

 

[TopEndScraper]

Pore mans sodium sillicate can be made from "DrainO " and "Sillica jell " , a few pages on the web on how to make it, its also good for making welding rods out of fence wire and newspaper

 

[pyrobrewer]

This is readily available and cheap, at all home brew stores, its brewers detergent or sodium meta-silicate it is usually sold in powder/granular form -
Just make a solution with di-hydrogen monoxide

Most good homebrew stores buy it in 25kg bags and repackage (I did when I had my home brew store)

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