I got a chance this weekend to play with some pour in weights for my car and my son's car. What blew me away is that when we went to pour it, we discovered that my front weight pocket was not big enough. So we tapped out the semi-liquid metal back into the can and put it back on top of the Kerosene heater. The guy tells me that the metal can be poured into a styrofoam cup and not melt it. He used to heat it with a coffee pot. When I look at the weight pocket, the wood doesn't even look heated!! The guy says it is used in hospitals for radiation shielding of glass. I look it up online and I find several low temp alloys. The Indium series is EXPENSIVE ($102/half pound) for the 136 degree F alloy. For 20 degrees F hotter, you can use the Bismuth alloy.
http://www.rotometals.com/product-p/lowmeltingpoint158alloy.htm
I used thin CA to glue it in place. Pretty cool stuff. FYI.
http://www.rotometals.com/product-p/lowmeltingpoint158alloy.htm
I used thin CA to glue it in place. Pretty cool stuff. FYI.
