Silicone to Plastic Bonding Soft and Hard

If too high a mould temperature is used for the silicone covering the thermoplastic part, there is a possibility of warping, and loss of shape or mechanical properties of the hard component. 

Thermoplastic materials which could be used in conjunction with silicone rubbers include nylons (polyamides), polybutylene terephthalate (PBT), polyphenylene sulphide (PPS) and polyethylene terephthalate (PET). 

Section 11.5. will explain the three alternatives for bonding, where mechanical anchorage (undercuts) or self-adhesive silicone rubber allow for two colour injection moulding. 

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