Custom Insert Molding Service

Get strong, high-strength, functional components with insert molding.
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injection insert molding

We offer Insert Injection Molding Service that combines metal or other materials into custom molded parts.

Erye is equipped with 30+ sets of advanced molding machines, which allow us to work with various materials, ensuring that the molded parts are not only strong but also optimzied for their intended applications performance.

Our insert molding solution includes:

Insert Molding Service Specifications

We offer a range of insert molding options tailored to meet precise manufacturing requirements. The table below provides an overview of our key capabilities.
Service Details
Process Materials Most plastics and rubber, including custom sourcing, see material list below
Standard Finishes SPI and VDI
Mold Service DFM report and mold flow analysis
Mold Ownership Customer owned with regular mold maintenance
Mold Cavities Single or multi-cavities
Mold Life Unlimited (If the mold worn out, Erye will cover the cost for the new set of mold)

Materials for Insert Injection Molding

Erye can mold any commercially available thermoplastic and elastomers. Please reach out with your specific resin needs.
ABS

ABS

Full Name

Acrylonitrile Butadiene Styrene

ABS (Acrylonitrile Butadiene Styrene) is a tough, durable thermoplastic commonly used for products that need to withstand impact and stress, such as automotive components, consumer electronics, and household goods.

The key advantages of ABS injection molding include its excellent strength-to-weight ratio, impact resistance, and ease of customization.

abs injection molding
PC

PC

Full Name

Polycarbonate

PC (Polycarbonate) material is a high-performance plastic known for its excellent strength, optical clarity, and heat resistance. PC is ideal for applications requiring both mechanical durability and visual appeal.

PC injection molding offers advantages such as precise molding of complex shapes in tight tolerances, making it a good choice for producing high-quality, intricate components.

pc injection molding
PA

PA

Full Name

Polyamide

PA (Polyamide), commonly known as Nylon, is a thermoplastic material known for its excellent mechanical properties, such as high strength, toughness, and wear resistance, it also offers good resistance to chemicals, oils, and abrasion.

Nylon injection molding allows for creation of complex, high-precision parts with excellent surface finish and dimensional stability. The reinforced with glass fibers or other additives enhaces it is strength and rigidity.

pa injection molding
PP

PP

Full Name

Polypropylene

Polypropylene (PP) is a commonly used thermoplastic material in injection molding due to its lightweight, durable, and chemical-resistant properties. It is highly resistant to acids, bases, and organic solvents, it also offers low moisture absorption and excellent fatigue resistance.

PP injection molding offers good flow characteristics and high molding efficiency, it can be molded into a wide range of complex shapes with fine details.

pp injection molding
PMMA

PMMA

Full Name

Polymethyl Methacrylate

PMMA, often referred acrylic or acrylic glass, is a transparent thermoplastic know for its excellent optical clarity, UV stability, and high impact resistance

PMMA injection molding offers good flowability and the ability to create intricate, high-quality parts. It can be molded into complex shapes with precision and a glossy finish.

pmma injection molding
POM

POM

Full Name

Polyoxymethylene

POM (Polyoxymethylene), also knows as acetal, is a engineering plastic offers outstanding mechanical porperties, commonly used in injection molding for parts requiring high strength, low friction, and excellent dimenisonal stability.

POM injection molding is a process to produce complex, high-precision component with efficient production cycles.

pom injection molding
LDPE

LDPE

Full Name

Low-Density Polyethylene

LDPE is a widely used thermoplastic polymer with lightweight, flexible, and durable properties. It has a low density of approximately 0.917 to 0.930 g/cmÂł, and has a relatively low melting point, making it easy to mold into a variety of shapes.

LDPE injection molding has low-cost and ease to processing which make it a popular choice for high-volume manufacturing.

ldpe injection molding
HDPE

HDPE

Full Name

High-Density Polyethylene

HDPE (High-density Polyethylene) is a thermoplastic with high strength-to-density ratio which has excellent chemical resistance, low moisture absorption, and can perform well in outdoor envionment.

HDPE injection molding is a highly efficient process for mass production, and able to produce HDPE parts with high stiffness and excellent impact resistance.

hdpe injection molding
PVC

PVC

Full Name

Polyvinyl Chloride

PVC (Polyvinyl Chloride) comes in two primary forms: rigid and flexible. Rigid PVC is commonly used for pipes, fittings, and profiles, while flexible PVC often used as cables and flooring. PVC is widely used in range of industrial as it is resistant to chemicals, abrasion, and weathering

PVC injection molding parts have excellent dimensional stability and its highly cost-effective.

pvc injection molding
PTFE

PTFE

Full Name

Polytetrafluoroethylene

PTFE (Polytetrafluoroethylene) is a high-performance plastic that can be used for application that demand superior perforamce in harsh environments.

PTFE injection molding can be challenging due to its high melting point and low flowability. However, PTFE molded components offer excellent durability, low friction, and resistance to corrosion and electrical conductivity.

ptfe injection molding
PS

PS

Full Name

Polystyrene

PS (Polystyrene) is a rigid, transparent thermoplastic material. Polystyrene is commonly used in applications where transparency is important, such as packaging, disposable cutlery, and cosmetic containers.

Polystyrene injection molding is ideal for high-volume production of simple and lightweight parts. It offers good dimensional stability and can be easily molded into complex designs.

ps injection molding
PU

PU

Full Name

Polyurethane

PU (Polyurethane) has excellent flexibility, durability, and has various hardness levels, which means it can be formulated to be soft or rigid.

Urethane cast molding is typically used for creating prototypes, low-volume production parts, and customized components. PU parts can be highly customized in terms of color, texture, and finish, which can meet specific design requirements.

urethane casting
TPE

TPE

Full Name

Thermoplastic Elastomer

TPE (Thermoplastic Elastomer) combines the flexibility of rubber with the ease of processing typical of plastics. It is know for its excellent elasticity and weather resitance.

TPE injection molding is a popular choice for producing parts that require soft-touch surfaces, impact resistance, and flexibility, such as seals, grips, and gaskets.

tpe injection molding
TPU

TPU

Full Name

TPU is a highly flexible and durable material known for its excellent abrasion resistance, tensile strength, and impact resistance. It combines the processing advantages of thermoplastics with the elastic properties of rubber, making it ideal for a wide range of applications, including automotive parts, footwear, medical devices, and electronics. TPU offers good chemical resistance, low-temperature flexibility, and high wear resistance, which makes it suitable for both industrial and consumer products.

TPU is a highly flexible and durable material known for its excellent abrasion resistance, tensile strength, and impact resistance. It combines the processing advantages of thermoplastics with the elastic properties of rubber.

TPU offers good chemical resistance, low-temperature flexibility, and high wear resistance, which makes it suitable for both industrial and consumer products.

tpu injection molding
TPV

TPV

Full Name

Thermoplastic Vulcanizate

TPV is created by blending vulcanzied rubber particles with a thermoplastic resin, it combines the processing ease of thermoplastics with the rubber-like properties of vulcanized rubber. It is known for its high strength and good abrasion resistance.

TPV injection molding using traditional thermoplastic molding techniques while maintaining the properties of rubber makes it a versatile material for a variety of industries.

tpv injectionn molding
Silicone

Silicone

Full Name

Silicone Rubber

Silicone rubber has excellent thermal stability, flexibility, and electrical insulation properties. It is also highly resistant to UV, ozone, and weathering. It can withstand a wide temperature range making it ideal for both high and low temperature applications.

Silicone rubber molding is often used to produce seals, gaskets, and custom parts for industries such as automotive, medical, and consumer electronics.

silicone injection molding
EPDM

EPDM

Full Name

Ethylene Propylene Diene Monomer

EPDM (Ethylene Propylene Diene Monomer) rubber is commonly used for applications requiring excellent weather, ozone, and UV resistance. It maintains its flexibility and durability even under extreme temperatures.

EPDM compression molding is used to create seals, gaskets, weather strips, and hoses. Its resistance to aging, water, and steam makes it a preferred material for industries such as automotive, construction, and electronics.

epdm compression molding
NR

NR

Full Name

Natural Rubber

Natural Rubber (NR) is known for its excellent elasticity, resilience, and abrasion resistance. NR is ideal for applications that require high flexibility and tensile strength. It also offers good resistance to wear, tear, and environmental conditions.

NR compression molding ensures uniformity and consistency in the final product, making it efficient for large-scale production.

nr compression molding
NBR

NBR

Full Name

Nitrile Butadiene Rubber

NBR commonly known as nitrile rubber, is a synthetic rubber known for its excellent resistance to oils, fuels, and chemicals. NBR is a common used material in automotive, industrial, and oil and gas industires.

NBR compression molding is ideal for manufacturing parts that require tight tolerances and complex shapes.

nbr compression molding
CR

CR

Full Name

Chloroprene Rubber

CR, commonly known as Neoprene, is a synthetic rubber with excellent weather, ozone, and aging resistance. CR is especially valuable in applications that require durability in challenging environments, such as automotive, electrical insulation, and marine products.

CR compression molding is often used to produce complex and durable parts, such as gaskets, seals, and protective covers. Neoprene is able to maintain its physical properties over time, even under exposure to environmental stressors.

cr compression molding
SBR

SBR

Full Name

Styrene-Butadiene Rubber

SBR (Styrene-Butadiene Rubber) is a synthetic rubber commonly used for manufacturing durable and cost-effective parts. It offers excellent resistance to abrasion, aging, and heat, making it ideal for applications requiring toughness and longevity.

SBR compression molding is used to produce components such as seals, gaskets, and automotive parts. Its ease of processing enable efficient production of high-quality molded products that meet strict specifications for performance and durability.

sbr compression molding
IIR

IIR

Full Name

Isobutylene isoprene rubber

IIR (Butyl Rubber) is a synthetic rubber known for its excellent air and moisture impermeability, making it an ideal choice for sealing applications. It is highly resistant to chemicals, UV light, and oxidation.

In compression molding, IIR butyl rubber is used to create durable, high-quality components like seals, gaskets, and vibration dampeners. The material’s ability to withstand extreme temperatures and its flexibility make it perfect for molding complex shapes with tight tolerances.

iir compression molding

Inserts Types for Insert Molding

Metal

Plastic

Magnet

Glass Fiber

Ceramic

Insert Molding Surface Finishing Standard

To meet diverse aesthetic and functional requirements, Erye offers mold surface finishes according to both the SPI and VDI standards. Our injection mold standards guide the texture and smoothness of molded surfaces, ensuring that each part achieves the desired finish, from mirror-like surfaces to textured patterns.
Finishing Description Price Range SPI Grades
glossy surface SPI A:
Glossy Finish
Provides a highly reflective surface, ideal for aesthetic applications such as consumer products. $$$ SPI A1, A2, A3
semi-gloss surface SPI B:
Semi-Gloss Finish
Offers a moderate sheen, balancing gloss and matte, suitable for parts needing some visual appeal without being overly shiny. $ SPI B1, B2, B3
matte surface SPI C:
Matte Finish
Features a non-reflextive surface that reduce glare, often used for functional parts where aesthetics are less critical. $$ SPI C1, C2, C3
texture surface SPI D:
Dull Finish
Enhances grip and durability, commonly applied to functional components to improve handling and reduce wear. $$$ SPI D1, D2, D3

Gallery of Insert Molding Parts

Advantages of Insert Molding with Us

At Erye, we specialize in delivering high-quality insert-molded parts that seamlessly integrate metals, ceramics, or other components with plastics or rubber. With advanced machinery, expert craftsmanship, and over 40 years of experience, we ensure superior part durability, precision, and performance tailored to your unique requirements.

Insert Molding Applications

Insert Molding FAQs

Inserts can include metal, ceramic, glass, or other plastics.
Mold lifespan depends on material and usage but generally lasts thousands of cycles. At Erye, if the mold worn out, we will open a new mold for you.
Yes, we can integrate multiple inserts into a single component.
Insert molding combines components in a single step, while overmolding adds layers of material onto a pre-formed part.
Yes, prototype samples are available for approval before full-scale production.
Yes, our engineering team provides design optimization services.
We need design files, material specifications, and production volume.

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