Join Date: Jul 2018
Location: Dutchess County, NY
Correction on my earlier post. Nowadays they don't use sand, they use glass beads.
In any case if you have a decent high temp thermometer (meat thermometer), then get some fine sand from anywhere, but for small quantities, an aquarium supply store.
Place the sand in a pan on the stove top, or in the oven and heat to about 225 degrees. Once it is at temperature it will hold that temperature for a while. It may require more heat than that. Go up incrementally.
Bury the offending angle in the sand and let it sit for a while. Remove it and shape to the desired angle.
I would try boiling water first. The 212 degrees is probably not hot enough, so add some salt to raise the boiling temp. It might not work, but you won't melt the plastic. It is probably worth a shot.