Home > Capabilities> Injection Molding Service > 2K Overmolding Service

2K Overmolding Service

Your Leading 2K Overmolding Service Supplier

SHD Technology Co., Ltd. established in 2008, is a pure-play enterprise dedicated to developing and manufacturing nonstandard machine parts and equipment processing. Our main business are precision CNC machining, 2K overmolding service, 3D printing for plastic, 3D printing for metal, injection mold products, precision hardware, etc. Products mainly cover precision automatic equipment parts, tooling fixtures, mold tools, mobile phone accessories, automotive parts, medical equipment parts, food machinery, sewing machinery, aerospace, solar and electronic equipment, photoelectric communication, office automation, industrial equipment, laser equipment, household appliances, highways, barrier gate parts and other industries.

2K Injection Mold

Two-color mold injection molding refers to the injection molding process of two plastic materials on the same injection molding machine, which is molded in two times, and the product is only molded

Add to Inquiry
Injection Moulded Plastic

Two-color mold injection molding is a mold in which two kinds of plastic materials are injected on the same injection molding machine, molded in two times, and the product is only molded once.

Add to Inquiry
Injection Mould Design

Two-color injection mold is an injection mold that can inject two colors.. Two-color molds are roughly divided into two types: one, false two-color, two, true two-color.

Add to Inquiry
Liquid Silicone Molding

Two-color injection molding machine refers to a machine that produces two different colors or different materials of plastic products after different raw materials are plasticized by two different

Add to Inquiry
Mould Parts

Two-color injection molding products have been widely used in many fields such as mobile phone industry, pen-making industry, automobile industry, home appliance industry, hand tool industry and

Add to Inquiry

Why Choose Us?

Broad Market

Our products have been sold all over the world including America, Britain, Germany, Israel, Greece, Sweden, Malaysia, Australia, Russia, Japan etc.

Rich Experience

After 15 years of unremitting efforts, SHD has become a powerful machining enterprise in Shenzhen. Owning advanced technologies and strong technical force, can meet the needs of different customers.

Production Capacity

Our company mainly for precision plastic mold processing and injection molding, with an annual output of 600 sets of molds, including 20 sets of injection molding equipment, and the tonnage of the machines ranges from 80T-750T to meet the needs of different customers.

Quality Inspection

The company has more than 40 professional manufacturing and assembly equipment, and the quality department is equipped with various imported high-precision testing equipment to ensure the accuracy and reliability of product quality.

Parameter of 2K Overmolding Service

Plastic Modling Type	Injection
Production Material	PP,PC,PS,PA6,POM,PE,PU,PVC,ABS,PMMA etc
Surface Finishing	Silk-screen, Plating, Painting, Coating, etc
Mold Standard	LKM, HASCO, DME or upon customer's requirement
Mold Life	50,000 to 1,000,000 shots
Mold Material	45#, 50#, P20, H13, 718, 1.2344, 1.2738, NAK80, S136 etc
Mold Cavity	Single or Multiply Cavity
Other Service	Assembly, packaging, warehousing services
Certification	ISO9001, ISO14001, ISO13458, CE, RoHs, etc

Advantages of 2K Overmolding Service

High precision

The injection molding machine can inject molten plastic material into the mold through precise temperature, pressure and speed control, ensuring that the size and shape of each molded part are exactly the same as the design requirements. It is very suitable for manufacturing high-precision products such as electronic housings, automotive parts, etc.

Save raw materials

During the injection molding process, plastic particles are accurately measured and injected into the mold. By accurately controlling the parameters of the mold and the injection molding machine, excessive material waste is avoided. In addition, the excess plastic in the injection molding process can be recycled through an automated recycling system, re-melted and reused, reducing the waste of raw materials.

Good physical properties

The plastic is quickly cooled after high-pressure injection in the mold. During the cooling process, the molecular structure of the material is fully arranged, so that the molded parts have good tensile, impact and compression resistance. In addition, many plastic materials improve their mechanical properties by adding reinforcing materials during the injection molding process.

Smooth surface

The surface of the mold is finely polished to reduce the friction between the plastic and the mold, making the surface of the molded parts smoother and more uniform.

Material Selection for 2K Overmolding Service

Material combinations

Carefully choose materials that are compatible both physically and chemically. Some combinations may work better together, leading to improved product quality.

Proper bonding

Materials used in two shot injection molding should have similar melt temperatures to ensure proper bonding between layers. This is crucial for the structural integrity of the final product.

Intended use

Material selection should be based on the final product's intended use and performance requirements. Factors such as durability, flexibility, and chemical resistance should be considered.

Harder materials First

In most cases, harder materials are injected first, followed by softer materials. This sequential injection helps achieve the desired mechanical properties and surface finish.

Applications of 2K Overmolding Service

01/

Automotive industry
Mainly used to produce automotive interior and exterior trims and functional parts. For example, automotive dashboards, door handles, seat plastic parts, headlight housings, etc., all require injection molds for processing.

02/

Home appliance industry
Home appliances such as refrigerators, washing machines, microwave ovens, etc., use injection molds to produce housings, buttons, panels and other parts. For example, the buttons and panels of microwave ovens are made by injection molds.

03/

Medical industry
In the manufacture of medical devices and products, injection molds are used to produce various plastic parts such as syringes, infusion tubes, test tube racks, pharmaceutical packaging bottles, etc.

04/

Packaging industry
Plastic packaging products such as bottles, containers, caps, etc. are usually produced by injection molds. For example, plastic bottles, food containers, bottle caps and other packaging products all rely on injection mold processing.

Certificate

2023061413232789ef7dd41c454feca926bdb1b8e468c1.jpg (1380×557)

Packaging & Shipping

① Packaging

• Common package: 1 item packed with bubble or pearl cotton inner, than packed with double master carton.

• Packing details: Packing based on the image, 60PCS/carton, other package according to your goods.

• Delivery details: 3-30 days based on your quantity.

productcate-957-670

② Shipping

• Af first,we will shipping according to your requirement.

• Than,we will choose better shipping way for you if you need. We provide multi shipping method, such as shipping by air, by express, by train, by sea.

• As for the trade term, we provide FOB price, CIF price, CNF price, DDU price, DDP price and EXW price term.

productcate-966-651

FAQ

Q: What are the advantages of 2K overmolding compared to traditional molding methods?

A: It allows for the combination of different materials with distinct properties, like hardness, flexibility, and color, in a single part, enhancing its functionality and aesthetics.
It reduces assembly steps as the two components are molded together, saving production time and costs.
It provides better product quality with more precise control over the placement and integration of the two materials.

Q: How does the design process for 2K overmolding differ from that of single - material molding?

A: In 2K overmolding design must account for the interaction between the two materials, including their shrinkage rates, bond strength, and the flow of the second material around the first. The parting lines and gate locations need to be carefully planned to ensure proper filling and bonding of the two materials.

Q: Can 2K overmolding be used for high - volume production?

A: Yes, 2K overmolding is suitable for high - volume production. The efficiency of the process, with reduced assembly time and improved quality, makes it a viable option for large - scale manufacturing. Automated 2K molding machines can also handle high - volume production with consistent quality.

Q: What is the typical cost of 2K overmolding compared to single - shot molding?

A: Generally, 2K overmolding is more expensive than single - shot molding. This is because it requires more complex molding equipment, longer cycle times, and more precise material handling.

Q: How do you ensure good bonding between the two materials in 2K overmolding?

A: The surface energy of the two materials needs to be compatible for better adhesion. Surface treatment of the first - molded part, such as plasma treatment or chemical priming, can improve the bond.

We're well-known as one of the leading 2k overmolding service manufacturers and suppliers in China. If you're going to buy bulk high quality 2k overmolding service made in China, welcome to get free sample from our factory. For custom service, contact us now.

Mould Parts