I bought an Alumilite kit years ago but never got around to trying it. Lost a small part from a kit that lent itself to onesided casting so decided to copy the undamaged one.
Q1. Is there a shelf life on this stuff? Unopened, opened?
Q2. Is modeling clay OK to use as the mold material to make a small copy?
Q3. I made 3 batches so far. I may be having problems with the proportions as the quantity I need is very small. Seems like more catalyst is better than less. True? In all cases it seemed very thick, as in how the heck would you pour it into a closed mold? Am I doing something wrong, is it to old?
I managed to get a not to sticky mixture on the 3rd try. Dabbed it into the mold and waited for what was in the cup to firm up. I popped it out of the clay mold, it seems to have worked, though still rubbery.
Q4. I put everything away so I would stop dicling with it. How long should it take to really dry hard and be ready to work?
I did warm the bottles in a tub of hot water and mixed and shook the base for quite some time until all the oil seemed to go back in suspension. The catalyst is clear and looks fine. The inner plastic cap on the base was fragile and I had to trash it to get it out. I put some plastic bag material under the screw cap to reseal it it, the catalyst cap was fine.
Thanx Frank