TPU overmolding

TPU overmolding is a multi-material injection molding process that combines thermoplastic polyurethane (TPU) with rigid plastic substrates to create durable, soft-touch components. This process is widely used to improve grip, enhance protection, and integrate multiple material functions into a single molded part.

At HuaShuo, we provide custom TPU overmolding services for manufacturers across industries. Our engineering team supports material selection, mold design, and stable production to deliver high-quality TPU overmolded parts for consumer products, industrial equipment, and automotive components.

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What Is TPU Overmolding?

TPU overmolding is a manufacturing process in which thermoplastic polyurethane is molded over a rigid plastic substrate to create a single integrated component. The rigid base provides structural strength, while the TPU layer adds flexibility, grip, and protective properties.

This thermoplastic polyurethane overmolding process is commonly used to manufacture products that require soft touch surfaces, shock absorption, sealing, or ergonomic handling. Typical substrates used in TPU overmoulding include ABS, PC, nylon, and polypropylene.

Key Benefits of TPU Overmolding

Enhanced Grip

TPU surfaces provide soft-touch textures that improve handling and user comfort.

Impact Protection

TPU materials absorb shock and protect internal components from mechanical damage.

Sealing and Waterproofing

TPU layers can act as protective seals to improve water and dust resistance.

Abrasion Resistance

TPU offers excellent wear resistance, making it suitable for frequently handled products.

Material Integration

Overmolding allows rigid and flexible materials to be combined into one component.

Improved Product Appearance

Colored TPU layers can enhance product aesthetics and brand identity.

Materials Compatible with TPU Overmolding

TPU can be overmolded on various engineering plastics depending on product design and performance requirements.

ABS – common substrate for consumer electronics housings

PC – high strength substrate used in durable products

PC/ABS – balanced toughness and processability

Nylon (PA) – suitable for industrial components

Polypropylene (PP) – widely used in consumer products

POM – used for certain precision components

Common Applications of TPU Overmolding

Consumer Electronics

protective device housings
soft grip handles
wearable device components

Tools and Equipment

power tool handles
anti-slip grips
shock absorbing covers

Automotive Components

interior control buttons
sealing components
vibration dampening parts

Industrial Equipment

machine protective covers
sealing rings
anti-vibration pads

HuaShuo TPU Overmolding Capabilities

Multi-Material Injection Molding

HuaShuo supports multi-material molding processes to manufacture high-quality custom TPU overmolded parts.

Precision Mold Design

Our engineering team designs molds specifically optimized for TPU overmoulding processes.

Reliable Material Bonding

We control surface treatment and process parameters to ensure strong bonding between TPU and rigid plastics.

Flexible TPU Material Options

Different hardness and grades of TPU can be selected according to product requirements.

Prototyping to Mass Production

HuaShuo supports rapid prototyping, mold development, and stable volume production.

Consistent Quality Control

Strict inspection standards ensure the consistency and reliability of TPU overmolded components.

TPU Overmolded Products Examples

TPU overmoulding is widely used to combine rigid structures with soft protective surfaces. HuaShuo manufactures custom TPU overmolded components for various industrial and consumer applications.

FAQS

Everything You Need to Know About Our TPU overmolding

What is TPU overmolding used for?

TPU overmolding is used to add soft touch surfaces, grip, protection, and sealing to rigid plastic components.

What materials can TPU be overmolded on?

Common substrates include ABS, PC, nylon, and polypropylene.

Is TPU overmoulding durable?

Yes. TPU materials offer excellent abrasion resistance, flexibility, and impact protection.

What industries use TPU overmolded parts?

TPU overmolded components are widely used in electronics, automotive, tools, and industrial equipment.

Can TPU overmolding create waterproof seals?

Yes. TPU can form sealing layers that help improve water and dust resistance.

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From mold design to mass production, we offer end-to-end solutions.

Tell us about your application, materials, and volume requirements. Our team will recommend the right process and deliver a tailored manufacturing solution.