Overmolding

Overmoulding bonds a second material onto a substrate, usually a soft elastomer onto a rigid engineering plastic, so a product gets grip, sealing and impact protection without a separate assembly step. We run both two-shot tools that do it in a single machine cycle and insert-loaded overmoulding for smaller volumes.

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能力

対応内容

✓

Two-shot moulding in one cycle

Two-shot moulding in one cycle for high volumes

✓

Insert-loaded overmoulding

Insert-loaded overmoulding for 500–20,000 pieces

✓

TPE and TPU over PC, ABS, PA and PBT

TPE and TPU over PC, ABS, PA and PBT

✓

Hard-soft combinations

Hard-soft combinations for grips, seals and gaskets

✓

Multi-colour parts and translucent light-pipe designs

Multi-colour parts and translucent light-pipe designs

✓

Bond strength tested to peel and pull standards

Bond strength tested to peel and pull standards

材料

材料

TPE and TPU elastomers
SEBS and TPV grades
Silicone and LSR on request
PC, ABS and PA substrates
PBT for electrical housings
Medical-grade TPE
仕様

主要仕様

項目詳細
SubstratePC, ABS, PA, PBT, POM, metal
OvermouldTPE/TPU Shore A 40–90
ProcessTwo-shot, insert-loaded or transfer
Bond strengthCohesive failure typical with matched pairs
Quantity500+ for insert-loaded, 10,000+ for two-shot
Tolerance±0.1 mm on functional interfaces
仕上げ

表面処理・後加工

Soft-touch and matte surface textures

Soft-touch and matte surface textures

Crystal and frosted effects

Crystal and frosted effects

Laser marking on the rigid section

Laser marking on the rigid section

Anti-slip micro-texture

Anti-slip micro-texture

FAQ

よくあるご質問

Which materials bond well together?

Success depends on chemical compatibility. TPE grades are formulated for specific substrates such as PC, ABS or PA, and we always confirm the grade pair with a bond test before production.

Is mechanical interlocking enough?

Mechanical features such as undercuts and through-holes help, but a chemically matched pair gives a much stronger seal. We use both together on parts that must be waterproof.

What volumes justify a two-shot tool?

Two-shot tooling costs more than a single-shot tool, so it normally makes sense above about 10,000 parts per year. Below that we load pre-moulded substrates into a standard tool.

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