Two-Color Injection Molding Services
Formioo provides two-color (2K) injection molding services for producing multi-material or multi-color plastic parts in a single molding cycle. As fast as 7-day delivery.
- Materials with strong chemical bonding properties are available
- Monthly output exceeds 10,000 parts
- ISO Certified for ensured global quality standards
- More than 10 years of professional experience in two-color injection molding
Reliable Two-Color Injection Molding Manufacturer from China
As a professional custom injection molding manufacturer, Formioo provides advanced two-color molding services for producing multi-material or multi-color plastic parts in a single cycle. Our production lines are equipped with rotary platen and core-back systems, allowing us to mold parts with complex geometries, tight tolerances, and excellent visual and functional integration.
Our two-color injection molding service is ideal for parts that require both structural strength and visual appeal, such as grips, control buttons, seals, and multi-material housings. By combining hard and soft materials, or opaque and transparent resins, we help clients reduce secondary assembly steps, improve product durability, and enhance end-user experience. We also provide DFM support and material compatibility guidance to ensure seamless bonding between materials and cost-effective mold design.
With over 10 years of two-color molding experience, Formioo supplies high-quality two-color molded parts for automotive interiors, medical devices, handheld tools, home appliances, and consumer electronics. We support low to mid-volume production with fast lead times, consistent quality, and full technical collaboration from prototype to production.
Our Two-Color Injection Molding Services
Formioo offers a full range of two-color injection molding technologies, including Sequential two-shot molding, simultaneous two-shot molding, overmolding, and insert molding. These processes allow us to combine rigid and soft materials, opaque and transparent plastics, or colored resins in a single part, without secondary assembly. We work with a wide selection of thermoplastics such as ABS, PC, TPE, TPU, PA, and PC/ABS blends, carefully matched for strong inter-material bonding and consistent aesthetics.
To meet both cosmetic and functional demands, we provide value-added finishing options such as texture replication, laser marking, pad printing, and painting. For parts with precise dimensional requirements, our 2K molding processes can achieve tolerances as tight as ±0.05 mm, depending on material type and geometry. Each part is inspected with digital measuring tools and CMMs to ensure repeatability, tight sealing, and visual consistency.
This process molds two distinct materials in sequence using separate injections within one cycle for precise color separation.
Both materials are injected concurrently through dual injection units, forming an integrated, dual-color part in a single cycle.
A second material is molded directly onto a preformed base, creating a durable, two-tone part with excellent bonding.
Preformed inserts are placed in the mold and overmolded with a secondary material, achieving functional and aesthetic dual-color components.
Two-Color Injection Molding Capabilities
Material Compatibility
We handles a variety of engineering plastics such as ABS, PC, PP, PE, and Nylon to meet diverse production needs.
Printing Accuracy
We achieve tight tolerances ensuring consistent quality and precise color registration.
Maximum Build Size
Capable of handling molds up to industry-standard dimensions for both small and large parts.
Surface Finishing Options
Offering options like painting, plating, and texturing for enhanced durability and aesthetics.
Delivery Time
Average lead time of 7 to 14 days with expedited services available.
Massive Network
We work with trusted injection molding suppliers.
Explore Two-Color Injection Molding Parts We Manufactured
Explore our Two-Color Injection Molding showcase and see our precision-engineered parts in action. Discover the quality and versatility that set our manufacturing network apart.
Two-Color Injection Molding Tolerance
| Name | Tolerance Range |
|---|---|
| Standard Two-Color Parts | +/- 0.2 mm to +/- 0.5 mm |
| Precision Two-Color Parts | +/- 0.1 mm to +/- 0.3 mm |
| Complex Two-Color Parts | +/- 0.3 mm to +/- 0.8 mm |
- *Formioo accommodates part lengths of up to 48", depending on the process. For larger dimensions, please reach out to us for inquiries. The tolerances listed represent minimums under ideal conditions; however, looser tolerances may be necessary based on the process, material selection, or part geometry.
Two-Color Injection Molding Materials
PP
PP is very well-established for its excellent chemical resistance, flexibility, and affordability and is therefore an ideal option for two-color injection molding. Its low density and good flow properties enable clear color demarcation and consistent reproduction of intricate designs. PP is widely used in automotive trim, packaging components, and household items, where double-color designs are used to enhance product differentiation and consumer appeal. Its inherent properties facilitate easy shaping of the material into complex geometries without damaging individual color zones.
- Mill Lead Time: Up to 3 days
- Color: White, gloss finish
HIPS
HIPS is favored for its high impact strength, ease of processing, and vibrant color retention, making it well-suited for two-color injection molding applications. Its ability to absorb and reflect contrasting hues without blending allows manufacturers to produce consumer products and packaging with bold, eye-catching designs. HIPS is often used in items like toys, display components, and decorative housings where both functional performance and visual impact are crucial. Its adaptability to various molding techniques further enhances its appeal for dual-color designs that demand both strength and aesthetic versatility.
- Mill Lead Time: Up to 3 days
- Color: Bright, varied palette
ABS
ABS is a general-purpose commodity plastic with superior two-color injection molding ability as a result of its better moldability, impact strength, and ease of processing. Its unique ability to form clear, well-bonded interfaces among two different colors makes it the first choice for items that need to balance strength and elegance. Applied in two color, ABS is commonly used in automotive dashboards, electronic enclosures, and consumer appliance components where opposite colors accentuate functional details. Its ability to be mixed with a variety of additives makes it have customized finishes and textures, which play a significant role in its attractiveness.
- Mill Lead Time: Up to 3 days
- Color: Black, neutral matte finish
PC
Polycarbonate is a general-purpose engineering plastic that is well known for its high heat resistance, impact resistance, and transparency, and all play an essential role in providing accurate dual-color effects in injection molding. Its favorable flow behavior aids in the fact that individual color zones are not interrupted, and therefore it is especially ideal for products like smartphone covers, lamp covers, and shield covers. Material’s inbuilt strength allows it to withstand high-impact conditions, and its transparency or clear/coloured alternatives give a modern, high-technology appearance. PC’s capability to merge with other materials in two-shot processes gives products that offer higher mechanical properties in addition to striking visual contrast.
- Mill Lead Time: Up to 4 days
- Color: Transparent, vivid finish
PA
PA, also known as Nylon, is an engineering plastic known for its high strength, good wear resistance, and high chemical stability. Its strong properties make it ideal for two-color injection molding, particularly in functional zoning needs like in gears, connectors, and mechanical components. The transparent color demarcation PA allows is a product usability enhancement that readily identifies moving parts or safety zones. Its compatibleness with varying reinforcements also adds to its mechanical performance, making it a reliable option for demanding industrial and consumer markets.
- Mill Lead Time: Up to 4 days
- Color: Natural, with custom pigments available
POM
POM or Acetal enjoys a privileged position in engineering plastics due to its higher dimensional stability, low friction coefficient, and better stiffness. It is most suited to precision components, such as bearings, gears, and other moving parts where clear color segregation can establish functional zones. POM’s capacity to retain fine detail in two-color injection molding assures dual-tone structures remain sharp and even throughout production. Its inherent mechanical toughness and processability form performance as well as aesthetic benefits, thereby becoming the go-to choice for high-performance use with.
- Mill Lead Time: Up to 3 days
- Color: Natural, customized options
PEEK
The top performer due to its extremely high mechanical properties, heat resistance, and chemical inertness, PEEK optimally suits two-color injection molding in aerospace, medical, and high-industrial applications where performance and reliability are of most concern. PEEK’s ability to retain true color discriminations in two-tone applications provides functional and aesthetic requirements even in the most demanding environments. PEEK’s enhanced strength and toughness make it an ideally suited material to use on parts needing leading-edge performance and high-end appearances.
- Mill Lead Time: Up to 7 days
- Color: Customizable, high-performance finish
PPS
PPS is a thermally stable, chemically resistant, and strong plastic with high performance. It is fit for two-color injection molding in harsh applications such as electric components, automotive under-hood components, and industrial equipment. PPS enables the creation of dual-tone parts that not only function in severe service conditions but also exhibit excellent color retention and high resolution. Its ability to have color borders remain clear when it is being subjected to elevated temperature and stress guarantees that it is a good choice for products where both appearance and functionality are equally valuable.
- Mill Lead Time: Up to 5 days
- Color: Dark tones, customizable finishes
PET
PET is exceptional on its own right when it comes to high clarity, resistance to chemicals, and ease of processing, and these are highly critical in achieving excellent two-color injection molding outcomes. Its ability to maintain sharp, high-contrast color edges makes PET an ideal solution for consumer electronics, packaging, and high-end display use. PET’s glossy look and durability combine to a contemporary, trendy appearance which combines to product attractiveness. Softness of the material enables it to be used to develop innovative two-color designs that are functional as well as visually appealing in orientation, where high-end look is of topmost concern in the use.
- Mill Lead Time: Up to 4 days
- Color: Transparent, tinted options
Finishing Options for Two-Color Injection Molding
| Name | Applicable Materials | Colors | Can Be Applied with | |
|---|---|---|---|---|
|
In-Mold Decoration (IMD) | Thermoplastics (ABS, PC, Nylon, PP) | Full-color, Customizable | Pre-printed films, Injection molding process |
|
Out-Mold Decoration (OMD) | Plastics, Metals | Metallic, Full-color | Pre-printed films, Injection molding process |
|
Embossing / Color Embossing | Thermoplastics (ABS, PC, PP) | Custom, based on mold design | Custom molds, Pressing techniques |
|
Mold Etching | Thermoplastics | Natural tones, Shadow effects | EDM, Laser etching |
|
In-Mold Labeling (IML) | Thermoplastics | Full-color, Vivid | Pre-printed labels, Injection molding process |
|
Laser Engraving / Marking | Thermoplastics (ABS, PC) | Contrasting (material removal effect) | Laser marking equipment |
|
Gloss Polishing | Metals, Some high-quality plastics | Mirror-like, Glossy finish | Diamond polishing, Mechanical polishing |
|
Textured Surface (Satin/Matte) | Thermoplastics, Metals | Matte, Satin, Translucent | Textured mold inserts, Sandblasting |
|
Anti-Slip Treatment | Thermoplastics, Rubber | Natural, Enhanced contrast | Sandblasting, Chemical etching, Texture rollers |
|
Metalization (PVD Coating) | Plastics, Metals | Metallic (silver, gold, bronze, etc.) | Physical Vapor Deposition (PVD), Vacuum deposition techniques |
- *We offer a range of additional finishing options, including chromic acid anodizing, cadmium plating, copper plating, titanium anodizing (blue anodizing), gold plating, silver plating, and more. If you require finishes for materials not mentioned here, please reach out to us directly.
Your Two-Color Injection Molding Supplier Selection Ultimate Guide
Which two-color injection molding supplier is ideal for your needs? What 3D printing material has excellent tensile strength? Try Materials.Download our lasted supplier guide.
Formioo Two-Color Injection Molding FAQs
We collect a lot of FAQs from our real clients, and please check out our FAQ page. For more information about Formioo Company, you can also download our company E-catalogue brochure.
What is the lead time from design through to manufacturing?
Typically, projects are flipped in 7–14 days depending on size and complexity of the order.
What’s your minimum order quantity?
Our MOQ is typically hundreds of pieces, and we can undertake smaller runs or proto-types by request.
Do you handle complex designs with small details?
Absolutely—we use advanced tooling to capture fine details and maintain sharp color separations.
How do you ensure consistent color matching?
We use calibrated color matching and strict quality control at every step to keep colors uniform across batches.
What materials are you able to use for two-color molding?
We can mold using a variety of materials such as ABS, PP, PC, and many others—simply tell us what you require and we will be more than happy to recommend the most appropriate one.
Do you offer custom colors or finishes?
Yes, we are able to color match and finish to your custom requirements to provide just the look you need.
Two-Color Injection Molding Resource
Are You Looking for Two-Color Injection Molding Manufacturers in China?
Contact us for design assistance, free quote, and expert advice today.
Your inquiry will be replied within 24 working hours, and we respect your privacy.