Injection Molding Services
Experience precision and speed with our injection molding services. Get custom prototypes and production parts efficiently molded. Submit your design now for a free quote!
- Select from a wide range of materials and finishes
- T1 samples available in as little as 2 weeks.
- Get quick, free quotes and personalized assessments from our expert team





Our Injection Molding Service Capabilities
At LTC Proto, our custom injection molding services seamlessly transition your project from concept to mass production. We combine over 300 advanced machineries with over 20 production-grade materials to meet your prototyping and custom production needs.

Injection Mold Tooling
Injection mold tooling ensures efficient, high-volume production with durable aluminum or steel molds for precise, repeatable parts and complex geometries, ideal for mass production.

Plastic Injection Molding
Plastic injection molding creates high-quality, repeatable parts by injecting thermoplastic into custom molds at high pressure, ensuring precision and stability for large-scale production.

Overmolding
Overmolding combines materials for improved functionality and aesthetics, creating features like soft grips or multi-color parts for better usability and durability. Perfect for multi-material components.

Insert Molding
Injection mold tooling enables efficient, high-volume production with durable aluminum or steel molds for precise, repeatable parts and complex geometries, perfect for mass production.
Our Injection Molding Factory
Our Injection Molding Factory offers precision and efficiency, producing high-quality molded parts tailored to your specifications. With advanced equipment and expert teams, we serve a wide range of industries with reliable solutions.





Gallery of Custom Injection Molding Services
Explore our gallery of injection molding services, showcasing a range of high-quality prototypes and production parts. From custom designs to precision manufacturing, see how we bring your ideas to life with advanced injection molding techniques.








Why Choose Us
Injection Molding Expertise
Collaborate with us throughout your project to seamlessly transition from prototyping to full-scale production, including finishing options and detailed inspection reports.
Premium Quality Parts
Our ISO-certified facilities perform both in-process inspections and post-production testing to ensure that every custom molded part is accurate and consistent, regardless of complexity.
Superior Logistics Advantage
As VIP partners of DHL, UPS, and FedEx, we enjoy the best rates and fast, personalized service. Our experienced customs team ensures seamless, on-time deliveries, even during peak periods, reducing the risk of delays.
Quick Lead Time
By leveraging certified local factories and a robust supply chain, we accelerate product development and deliver plastic parts in as little as 1 week.
Materials for Injection Moulding Services

ABS
ABS is a widely used thermoplastic polymer known for its excellent balance of toughness, impact resistance, and machinability.
It exhibits superior durability, making it ideal for a range of applications, including automotive components, consumer electronics, and toys.
It also has a low melting point, allowing easy molding and faster production cycles. It is a cost-effective solution for high-volume manufacturing.
- Color: Beige, black, white
- Subtypes: ABS Beige (Natural), ABS Black, ABS Black Antistatic, ABS Milky White, ABS+PC Black, Flame Retardant ABS Beige, Flame Retardant ABS Black.
- Price: $$
- Lead Time: 5 business days

Polycarbonate
This is a high-performance thermoplastic known for its incredible strength and transparency.
PC combines impact resistance with optical clarity when used in industries requiring robust materials.
It is an excellent material for eyewear lenses, protective shields, and lighting systems.
Its high-temperature resistance also makes it suitable for environments exposed to extreme conditions.
With its ability to provide both mechanical strength and aesthetic clarity, polycarbonate is ideal for precision-molded parts.
- Color: White, black
- Subtypes: Flame Retardant Transparent PC, Food Grade PC-Transparent, PC Black, PC Transparent, PC White, PC Yellowish White, PC+GF30 Black
- Price: $$
- Lead Time: 5 business days

Acrylic
Acrylic (PMMA) is a lightweight, durable plastic with excellent optical clarity and UV resistance.
It’s commonly used in signage, displays, and automotive parts due to its strength, ease of molding, and impact resistance, offering a transparent alternative to glass.
- Color: Black, white
- Subtypes: PMMA Black, PMMA Transparent, PMMA White
- Price: $
- Lead Time: 5 business days

POM
POM (Polyoxymethylene), also known as acetal, is a strong, rigid thermoplastic known for its excellent dimensional stability and low friction properties.
It’s widely used in precision engineering applications, such as gears, bearings, and automotive components, where high durability and wear resistance are crucial.
POM offers outstanding chemical resistance and performs well in both low and high-temperature environments.
- Color: Black, white, blue, dark, brown
- Subtypes: Dark Brown (Coffee) POM 100AF, POM Black, POM Blue, POM White
- Price: $$
- Lead Time: 5 business days

PA
Nylon is a versatile synthetic polymer widely used for its high tensile strength, durability, and excellent wear resistance.
It is favored in mechanical applications such as gears, bearings, and automotive parts due to its ability to withstand friction and high impact without degrading.
This material is also known for its thermal stability, making it resistant to high temperatures and chemicals.
Additionally, its lightweight properties and ability to be molded into complex shapes contribute to its broad use.
- Color: Blue, black, beige
- Subtypes: PA(Nylon) Blue, PA6 (Nylon)+GF15 Black, PA6 (Nylon)+GF30 Black, PA66 (Nylon) Beige(Natural), PA66 (Nylon) Black
- Price: $$
- Lead Time: 5 business days

Polyethylene
PE (Polyethylene) is a versatile, durable plastic known for its excellent chemical resistance and low friction properties. It’s widely used in packaging, pipes, and insulation materials.
With good impact resistance and flexibility, PE performs well in various temperatures and is available in different grades, such as HDPE and LDPE, for a range of industrial applications.
- Color: Black, white
- Subtypes: PE Black, PE White
- Price: $$
- Lead Time: 5 business days

PEEK
PEEK (Polyetheretherketone) is a high-performance thermoplastic known for its exceptional strength, chemical resistance, and thermal stability.
It can withstand extreme temperatures and harsh environments, making it ideal for aerospace, automotive, and medical applications.
And it offers excellent wear resistance and dimensional stability, making it suitable for high-stress, precision parts.
- Color: Beige, black
- Subtypes: PEEK Beige (Natural) and PEEK Black
- Price: $$$
- Lead Time: 5 business days

Polypropylene
This material is a highly durable and chemical-resistant thermoplastic. Its excellent electrical insulation properties make it perfect for electrical applications.
Likewise, its ability to withstand high temperatures and maintain dimensional stability under stress makes it an industry favorite for automotive and industrial components.
PP’s low density and moisture resistance are also ideal for packaging applications, including food containers and medical devices.
The ease with which polypropylene can be processed via injection molding further adds to its wide-ranging use in diverse industries.
- Color: Black, white
- Subtypes: PP Black, PP White, PP+GF30 Black
- Price: $
- Lead Time: 5 business days

HDPE
HDPE (High-Density Polyethylene) is a strong, durable plastic with excellent chemical resistance and low moisture absorption. Known for its high tensile strength, it’s commonly used in containers, pipes, and geomembranes.
It performs well in various environments, offering resistance to impact, UV radiation, and corrosion, making it ideal for outdoor and industrial applications.
- Color: Black, white
- Subtypes: HDPE Black, HDPE White
- Price: $$
- Lead Time: 5 business days

HIPS
HIPS (High-Impact Polystyrene) is a tough, impact-resistant plastic with good processability and low cost. It’s widely used in packaging, appliances, and consumer goods.
In fact, it offers excellent dimensional stability and is easily molded into complex shapes, making it ideal for both injection molding and thermoforming applications.
- Color: White
- Subtypes: HIPS Board White
- Price: $$
- Lead Time: 5 business days

LDPE
LDPE (Low-Density Polyethylene) is a flexible, lightweight plastic known for its excellent chemical resistance and low-density structure.
Commonly used in packaging, plastic bags, and liners, LDPE offers good impact resistance and can withstand low temperatures.
Its ease of processing and versatility make it ideal for applications requiring durability and flexibility.
- Color: White
- Subtypes: LDPE White
- Price: $$
- Lead Time: 5 business days

PBT
PBT (Polybutylene Terephthalate) is a strong, durable thermoplastic known for its excellent chemical resistance and high thermal stability.
Often used in automotive, electrical, and electronics industries, PBT offers good dimensional stability and low moisture absorption.
Its ability to withstand harsh environments makes it ideal for precision parts and high-performance applications.
- Color: Black, milky white
- Subtypes: PBT black, PBT milky white (natural)
- Price: $$
- Lead Time: 5 business days

PET
PET (Polyethylene Terephthalate) is a strong, lightweight plastic with excellent chemical resistance and dimensional stability.
Commonly used in packaging, textiles, and automotive applications, PET offers good clarity and barrier properties.
Its recyclability and durability make it a popular choice for bottles, containers, and synthetic fibers.
- Color: Black, white
- Subtypes: PET Black, PET White, PET+GF30 Black, PET+GF30 White
- Price: $
- Lead Time: 5 business days

PPS
PPS (Polyphenylene Sulfide) is a high-performance thermoplastic known for its exceptional chemical resistance and thermal stability.
Often used in automotive, electrical, and industrial applications, PPS offers excellent dimensional stability and low moisture absorption.
Its ability to perform in extreme environments makes it ideal for demanding, high-temperature applications.
- Color: Black, white
- Subtypes: PPS Black, PPS White, PPS+GF30 Black, PPS+GF30 White
- Price: $$
- Lead Time: 5 business days

PS
PS (Polystyrene) is a versatile, cost-effective plastic known for its rigidity and ease of processing.
Commonly used in packaging, disposable cutlery, and household items, PS offers good clarity and can be easily molded into various shapes.
Its low density and affordability make it a popular choice for many everyday applications.
- Color: Transparent
- Subtypes: PS Transparent
- Price: $$
- Lead Time: 5 business days

PVC
PVC (Polyvinyl Chloride) is a durable, versatile plastic known for its excellent chemical resistance and electrical insulating properties.
Widely used in construction, plumbing, and medical applications, PVC offers both rigidity and flexibility, depending on the formulation.
Its resistance to moisture, corrosion, and UV radiation makes it ideal for long-lasting outdoor and industrial use.
- Color: Grey
- Subtypes: PVC Grey
- Price: $$
- Lead Time: 5 business days

PTFE (Teflon)
PTFE (Teflon) is a high-performance polymer known for its exceptional non-stick properties and resistance to high temperatures.
Commonly used in electrical insulation, gaskets, and coatings, PTFE offers outstanding chemical resistance and low friction.
Its ability to perform in extreme environments makes it ideal for demanding industrial and aerospace applications.
- Color: Black, white
- Subtypes: Teflon (PTFE) Black, Teflon (PTFE) White
- Price: $
- Lead Time: 5 business days

UPE
UPE (Ultra-High Molecular Weight Polyethylene) is a tough, abrasion-resistant plastic with excellent impact strength and low friction properties.
Often used in applications like conveyor systems, bearings, and liners, UPE performs well in demanding environments.
Its resistance to chemicals and wear makes it ideal for heavy-duty industrial uses.
- Color: Black, white
- Subtypes: UPE Black, UPE White
- Price: $$
- Lead Time: 5 business days
Injection Molding Surface Finishes (SPI Finish)
Our SPI finishes enhance both the aesthetics and functionality of your plastic injection molded parts, with various levels of texture and polish available to suit your product’s requirements.
Finish Type | Finish Description |
---|---|
A-1 | Mirror finish, highly polished (diamond buffing) |
A-2 | High gloss, smooth finish (diamond buffing) |
A-3 | Semi-gloss, smooth finish (diamond buffing) |
B-1 | Fine texture, medium polish (polished with #600 grit sandpaper) |
B-2 | Medium texture, semi-gloss finish (polished with #400 grit sandpaper) |
B-3 | Coarse texture, semi-gloss finish (polished with #320 grit sandpaper) |
C-1 | Fine matte finish (polished with #600 grit stone) |
C-2 | Medium matte finish (polished with #400 grit stone) |
C-3 | Coarse matte finish (polished with #320 grit stone) |
D-1 | Fine bead blast texture |
D-2 | Medium bead blast texture |
D-3 | Coarse bead blast texture |
Finish Type | Finish Description |
---|---|
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Mirror finish, highly polished (diamond buffing) |
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High gloss, smooth finish (diamond buffing) |
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Semi-gloss, smooth finish (diamond buffing) |
![]() |
Fine texture, medium polish (polished with #600 grit sandpaper) |
![]() |
Medium texture, semi-gloss finish (polished with #400 grit sandpaper) |
![]() |
Coarse texture, semi-gloss finish (polished with #320 grit sandpaper) |
![]() |
Fine matte finish (polished with #600 grit stone) |
![]() |
Medium matte finish (polished with #400 grit stone) |
![]() |
Coarse matte finish (polished with #320 grit stone) |
![]() |
Fine bead blast texture |
![]() |
Medium bead blast texture |
![]() |
Coarse bead blast texture |
Gallery of Custom Injection Molding Services
Explore our gallery of injection molding services, showcasing a range of high-quality prototypes and production parts. From custom designs to precision manufacturing, see how we bring your ideas to life with advanced injection molding techniques.




Ready to Start Your Injection Molding Project?
Get custom injection-molded parts quickly and efficiently. Contact us today for a free quote and expert advice on optimizing your design for production!
Injection Molding Manufacturing Capabilities
Service | Details |
---|---|
Lead Time | Starts in as little as 5 business days, with quick quote responses and design-for-manufacturing (DFM) feedback included. |
Production Options | Both domestic and international |
Materials | A wide range of plastics, including custom sourcing and material matching; refer to the materials list below. |
Machines Available | Single, multi-cavity, and family molds; press tonnage ranging from 50 to over 3,700; automated side actions or manually loaded cores. |
Inspection and Certification Options | Includes ISO 9001 & 14001, ISO 13485, IATF 16949. Factory certifications include BSCI, ISO, RoHS, and TUV. |
Tool Ownership | Customer-owned molds with maintenance included. |
Mold Cavity Tolerances | +/- 0.005" for mold machining, plus an additional +/- 0.002" per inch for shrinkage calculation. |
Part to Part Repeatability | +/- 0.004" or tighter |
Critical Feature Tolerances | Tighter tolerances can be requested, though they may increase tooling costs due to additional sampling and refinement. LTC Proto will mill critical features to a steel-safe condition. |
Available Mold Types | We offer steel and aluminum molds, with production grades ranging from Class 105 (prototype molds) to Class 101 (high-production molds). LTC Proto typically manufactures Class 104, 103, and 102 molds. |
How to Work with Our Plastic Injection Molding Services
At LTC Proto, we make the injection molding process straightforward and efficient. Here’s how to get started with your custom project:
Upload CAD Design
Submit your CAD files via the form or email, and we’ll handle the rest.
Quote & DFM Review
Receive an instant quote and a Design for Manufacturability (DFM) analysis to optimize your design for production.
Order Confirmation
Once everything is approved, confirm your order, and we will start the production process.
Start Production
Our expert team ensures your parts are produced on time and to the highest standards.
How to Work with Our Plastic Injection Molding Services
At LTC Proto, we make the injection molding process straightforward and efficient. Here’s how to get started with your custom project:
Submit your CAD files via the form or email, and we’ll handle the rest.
Receive an instant quote and a Design for Manufacturability (DFM) analysis to optimize your design for production.
Once everything is approved, confirm your order, and we will start the production process.
Our expert team ensures your parts are produced on time and to the highest standards.
Why choose Us
Injection Molding Expertise
Collaborate with us throughout your project to seamlessly transition from prototyping to full-scale production, including finishing options and detailed inspection reports.
No Minimum Order Quantities (MOQs)
We understand the critical importance of quality control. Every part produced at LTC Proto undergoes rigorous inspection to ensure it meets the required specifications and quality standards. From raw material selection to final product inspection, we employ cutting-edge technology like automated visual inspections, coordinate measuring machines (CMM), and in-depth functionality testing to deliver flawless products.
DFM Feedback
Each quote includes real-time pricing and design evaluation. We analyze your 3D CAD files to highlight potential challenges, such as hard-to-machine undercuts or draft issues.
Fast Turnaround Times
Accelerate your product development cycle by weeks or even months. Injection-molded parts can ship in as little as 1 day, helping you quickly transition to production.
Injection Molding Services FAQs
No, we do not have a minimum order quantity (MOQ) requirement. You can order as few as one part or scale up to larger quantities based on your needs.
Prototype molds are typically made from aluminum and are designed for low-volume production or testing. Production molds are made from steel, offering higher durability for large-scale manufacturing.
Yes, overmolding and insert molding are common techniques used in injection molding to create multi-material parts, such as combining soft and hard plastics or embedding metal components.
We use advanced quality control techniques, including dimensional inspection, visual checks, and material testing, to ensure that all parts meet your specifications. We also provide inspection reports upon request.
Aluminum molds typically do not last as long as steel molds, especially in high-volume production. However, aluminum tools are an excellent option for low- to medium-volume production runs due to their faster production time and lower cost. Steel molds are more durable for high-volume applications and capable of handling the stress of repeated use over longer periods. Our facility offers aluminum and steel tooling options, and our engineers can help you choose the best material based on your project needs and expected production volume.
Common defects include warping, sink marks, short shots, and flash. These can be minimized with proper mold design, material selection, and process optimization. We conduct thorough testing to ensure high-quality parts.
Ready to Begin Your Injection Molding Project?
Contact LTC Proto today to bring your ideas to life with precision-molded parts designed for performance and longevity. Our team is ready to provide expert guidance from design to production.
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