How to choose suitable hardness of silicone for mold making?
For same casting materials, the hardness of silicone depends on the size and patterns.
-For a block &Cavity moulds
Shore A 5 and 10 for size 10-20 cm with small and fine patterns
Shore A 10 and 15 for size 20-30 cm with fine patterns
Shore A 20 and 25 for size 30-60 cm
Shore A 30 and 35 for size 60-90 cm with sample patterns
Shore A 40 for size more than 90cm
-For brush-on applications, our best-seller is Shore A 28