Two-Shot Molding Services

Two shots. One cycle. Zero assembly.

Yes, two‑shot molding is technically demanding. Wrong material pair? Bond fails. Wrong sequence? Parts warp. Wrong gate design? Flow marks appear.
That's exactly why you need a partner who knows what they're doing.

At Winzunmold, we handle the complexity so you don't have to:
◆Material compatibility analysis (TPE/PC/ABS/PA – we test them before we run them)
◆Mold design with precision rotating cores or index plates
◆Process validation to ensure repeatability across millions of cycles

The result? High‑quality multi‑material parts that meet your specs – and your budget.

What Is 2K Injection Molding?

2K injection molding (two-shot molding) is a process where two different materials are injected sequentially in one mold to form a single integrated part.

First shot: rigid plastic (ABS, PC, Nylon)
Second shot: soft or functional material (TPE, TPU, etc.)

Key advantages:
Strong bonding between materials
No secondary assembly requiredImproved product consistency
Enhanced design flexibility

Which plastics can be combined in a two-shot part?

Common concepts pair a rigid thermoplastic such as ABS, PC, PC/ABS, PP, or PA with a compatible TPE or TPU, or use two colors of a related resin. Compatibility is grade-specific. Adhesion, processing temperature, shrinkage, moisture, chemical exposure, and end-use conditions must be checked before finalizing the mold.

Material Combinations We Offer

Hard + Soft Plastics

PC + TPE/TPU
Rigid structure with soft-touch grip areas
ABS + TPE
Durable base with rubber-like seals
PP + TPE
Flexible functionality with rigid support

Ideal for tools, handles, consumer products requiring ergonomic grip zones and sealing applications.

Multi-Color Combinations

ABS + ABS
Different colors in single component
PC + PC
Transparent and opaque combinations
PP + PP
Contrasting or complementary colors

Perfect for automotive trim, consumer electronics, and products requiring distinctive visual design without painting.

Engineering Plastics

PA + TPE
High strength with flexible elements
PBT + TPE
Electrical insulation with sealing
POM + TPU
Precision mechanics with dampening

Designed for technical applications requiring superior mechanical properties and performance characteristics.

Our Two-Shot Injection Molding Process

1. Request Quote

Once we receive your inquiry, we provide a quote within 48 hours to start the project promptly.

2. DFM & Mold Flow

We provide DFM and Mold Flow analysis to ensure manufacturability and optimize part quality.

3. Mold Design

We create precise 3D mold designs for efficient production and long-lasting performance.

4. Mold Manufacturing

Our skilled technicians use CNC and EDM machining to fabricate precision two-shot molds.

5. Sample Confirmation

After mold completion, we produce initial samples for your review and approval.

6. Mass Production

Following sample approval, we begin efficient mass production to meet your volume and timeline requirements.

7. Strict Quality Inspection

Every part undergoes rigorous testing for appearance, dimensions, color accuracy, and assembly fit.

8. Final Delivery

We coordinate with reliable logistics partners to ensure safe and timely delivery to your location.

Services: Mold Making Services; Injection Molding Services; Plastic Injection Molding; Insert Molding Services; Overmolding Services; Two-Shot Molding Services; Silicone Rubber Molding Services; CNC Machining Services

Products: Automotive Parts; Household & Electronic Parts; High Precision Parts; 2K & Overmold Parts; Silicone Rubber Parts; CNC Machining Parts

About Us

Contact Us: A1, Tantou West Ind Zone, Songgang St, Baoan Dist, Shenzhen, Guangdong, China; info@winzun.com

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