Why choose liquid silicone rubber overmolded with plastic and metal?
LSR is more precise, have good parting line,and with less silicone rubber flashing
Liquid silicone is high efficicency, can save labor cost and achieve auto and semi-auto production.
Liquid silicone rubber is safer, can up to fully FDA grade.
Liquid silicone widely used in different ares:
Special demands of plastic and metal for LSR overmolded:
Liquid silicone rubber can be used to overmol plastics, metal, electrical connections, electronics and heaters, and it has good adhesion, electrical insulation and moisture resistant.
plastic: need have good heat resistance to make sure the plastic won't be melted.
How to achieve the bonding of silicone:
mechanical bonding with under cuts.
use of primes on part to be over-molded.
use self-bonding silicone
Usually we will choose vertical liquid silicone rubber injection molding, because LSR injection moulding is easy to place the plastic and metal parts on.