I’m curious as to what everyone uses as a ‘freeze block’ when they’re pouring ingots in to a strip mold (I’m not sure if that’s the right terminology; but it’s the long ingot mold with grooves on it, not the kind that clamps together)?
For example, let’s say the strip mold has a 10 inch groove, but you only need an ingot that’s 4 inches long. What do you use to block the metal so it fills up the 4 inch section? I’ve used a tightly rolled up piece of paper towel soaked in oil, but this just seems…I don’t know…wrong? Plus it catches on fire