Polyurethane Casting (Vacuum Casting)
Vacuum casting is an excellent option for a low-volume production range of ten to several hundred pieces. It involves building a master and silicone mold for casting the part in identical polyurethane, The material of the casting part can be chosen in a variety of hard plastic (ABS-liked, PC-liked, POM-liked, etc.) and rubber (Shore A 35 ~ Shore A 90). Many different casting polymers allow pigment to be added to meet your color requirements.
On average, the lifetime for a silicone mold is around 15~20 PCS and varies based on the part’s geometry and casting material used.