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Silicone Demoulding

Stage 3: Silicone Demoulding

We have prepared the master model. The amount of silicone which is necessary had already been calculated and poured into the frame earlier. As mentioned in the previous stage, it is essential to wait for a period of 12 to 24 hours in order for the silicone to get cured. It must be noted that this curing time depends on the kind of silicone that is being used. At this point, it is important that the silicone remains untouched. Following the necessary curing time, it is now time to demould the silicone.

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 Global, 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.

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