| The Shop > Metal Stuff |
| Sodium Silicate Cores |
| << < (2/2) |
| andyf:
Another fascinating video. I remember sodium silicate or "waterglass" from my childhood when it was used for preserving eggs and making "chemical gardens", but had no idea that it reacted with carbon dioxide in this way. For anyone else who is interested, I found a (not too technical) description here: http://www8.svsu.edu/~rtuttle/FRG/HOWTOs/Sodium%20Silicate%20Coremaking.pdf Andy |
| awemawson:
If I remember correctly John, I was using 4% sodium silicate by weight - not done it in the last 6 years as my foundry stuff is still not unpacked, but I do have two drums each of 25 litres of the stuff! |
| Rob.Wilson:
:lol: :lol: :lol: will you be demonstrating that quick core removal method this afternoon John :lol: :lol: :lol: :lol: Cracking vid mate :clap: :clap: :clap: :clap: I see my pattern has changed a tad Bob :thumbup: Rob |
| Brass_Machine:
--- Quote from: sparky961 on April 13, 2013, 11:48:15 PM ---"Per'aps that was a bit overenthusiastic" -- Classic! Made me laugh out loud. I'm glad you didn't edit this out because we've all been there. :) Thanks for the entertaining and informative videos. --- End quote --- I agree! Learning quite a bit watching these... |
| Navigation |
| Message Index |
| Previous page |