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| awemawson:
Water and antifreeze ? |
| Will_D:
Before casting have a look at this re. MDF pulleys: BTW: It is Gingery related :clap: http://madmodder.net/index.php/topic,10444.0.html |
| vtsteam:
Andrew, do you mean for tempering? I just wouldn't want to do that. I was thinking more in the line of a heat tape buried in the sand, light bulb, insulated cooler, etc. as we mentioned before here, I think. Will, thanks, I'll answer there on the lathe thread. |
| awemawson:
Yes I meant for tempering. It's basically ethylene glycol which won't affect the casting in the required proportions - or if you want to go eco safer use propylene glycol, which is the 'food grade'. I happen to have several 205 litre drums of diluted propylene glycol. When I dismantled my induction furnace before coming here, I pumped out all the coolant as it's not cheap, and brought it with me. |
| RussellT:
Wouldn't glycol burn during the casting process? I would have thought that salt might be a better antifreeze. Using excess salt would ensure that you always had a saturated solution and the salt crystals shouldn't do any harm. That would protect down to -21C (or -5F) which might not be low enough for Vermont. Russell |
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