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Advantages Of 2K Injection Molding

No secondary processing and assembly steps
Excellent adhesion to the plastic part
Low handling
Quick cycle times
High degree of automation
Stable production processes
Economical cost

2K PLASTIC INJECTION MOULDING

2K, also known as two-shot or two-color injection molding, is a process that combines two different plastics or two colors of the same plastic into a single final product using one injection molding cycle. This technique allows multiple functions to be integrated into a single molded part. Thanks to the chemical bonding between the materials, strong adhesion is achieved without the need for chemical pre-treatment of the thermoplastic components.

2K Injection Molding Applied Products

HIGH-VOLUME PLASTIC INJECTION MOLDING

We offer high-volume purchase agreements for a wide range of commodity and engineering resins, supported by our just-in-time shipping capabilities through an advanced inventory control system. At LHS, we deliver turnkey solutions tailored for businesses with high-volume requirements—typically 1 million parts annually or more. From mold development to full-scale production, we focus on manufacturing large quantities of plastic components for leading companies across India. With expertise in close-tolerance injection molding of small plastic parts, we provide end-to-end solutions covering design, tooling, production, fulfillment, and packaging.

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PROTOTYPE MOLDING

Prototype molds, also known as “soft tooling” or “rapid tooling,” can be delivered within 2–4 weeks. They offer a cost-effective solution for ensuring a smooth production process. With advanced machining equipment, in-house molding capabilities, and a skilled team, we are committed to making your project easier, faster, and more economical.

PLASTIC OVER-MOLDING

Plastic Overmolding is an operation in which two or more mediums are merged to form an ending molded product, plastic over-molding needs to make two separate molds, one is substrate (first mold), the second mold is called over mold , but if the substrate is metal parts or brass parts, this type of over molding we normally call insert molding. .

Application for Overmolding Injection

Overmolding injection molding has a wide range of applications, including:

Parts with soft grip handles
Window reveal moldings
Medical and healthy devices and instruments
Knobs for controls, appliances and assemblies
Encapsulated electrical components and electronic devices

Overmolding Process

Plastic overmolding has a process in which a certain materials used in injection moulding is molded in a primary plastic mold, and the molded part is taken out and placed in a secondary molding mold to inject the same or another plastic material into overmolding process. Overmolding processhas key factors as below:

The chemical or mechanical bonding strength between the polymers is not enough, and the material of single or multiple parts is not completely filled
Flashing of burrs on single or multiple material parts.
The injection molding machine must maintain the consistency of injection molding.

Advantages of Overmolding Injection

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