Silicone Demoulding
Stage 3: Silicone Demoulding
Silicone demoulding is an extremely delicate process which must be carried out very carefully. To put it simply, demoulding the silicone means that the master model is detached from the frame manually. The first step of this process is to gently cut the mould into two parts. It must be noted here that the mould is not cut randomly. Rather, a predetermined line must be followed when it is being cut so that it is not damaged or deformed in any way. This must be handled as carefully as possible because it might be needed later on. One silicone mould can be used for approximately 20 to 30 times. For this reason, harming the master model means we must start over when we need to use it again, which means wasting precious time. As PLG Engineering, there are many different tricks we use in order to make this process easier to handle; such as releasing agents and using special tools. After the master model is extracted from its frame, it is now time to close the mould and to stamp it. Stamping it is essential for protection because it must be kept stable while casting. After silicone demoulding process is finished, Urethane Casting stage begins.