Today I wil show you how to make a casting pu product
1, the cast polyurethane prepolymer temperature up to 85℃, stirring while vacuuming for 45 minutes;
2, put the mold into the drying box to adjust the temperature to 120℃, keep for more than half an hour;
3. After the completion of steps 1 and 2, take a certain amount of MOCA and melt it on the electric furnace and pour it into the calculated prepolymer, stir it quickly, stir it well, pour it into the preheated mold, wait for a few minutes to cure, put it in the oven, and mature at a constant temperature of 120℃ for one hour, you can get out of the mold, this is a curing;
4, put a number of pieces of curing work into the oven, temperature rise 85℃, and then curing for four hours is the finished product.
