Best Custom Silicone Molding Companies - June 2026

Global
Explore the top-rated custom silicone molding companies known for precision, material expertise, and scalable manufacturing solutions. Find reliable partners for your industrial or consumer product needs.
1

Dow Silicones

United States, Midland
4.9

Global leader in silicone materials and advanced molding solutions.

Details

  • Year Founded: 1897
  • Employees: 10000+
  • Price Range: $$$$
  • Phone: +1-989-636-1000
  • Email: contact@dow.com

About the Company

Dow is a powerhouse in material science, offering exceptional custom silicone molding capabilities for medical, automotive, and industrial sectors. Their commitment to innovation and high-purity standards makes them a top choice for complex engineering projects.

Pros

  • Industry-leading R&D
  • High-grade material quality

Cons

  • Premium pricing
  • Best for large-scale orders
2

Wacker Chemie AG

Germany, Munich
4.8

Specialists in liquid silicone rubber (LSR) processing and molding.

Details

  • Year Founded: 1914
  • Employees: 5000-10000
  • Price Range: $$$
  • Phone: +49-89-6279-0
  • Email: info@wacker.com

About the Company

Wacker provides sophisticated silicone solutions with a deep focus on precision molding. Their technical expertise in LSR allows for the creation of intricate, high-performance parts that meet strict regulatory requirements globally.

Pros

  • Expertise in LSR
  • Excellent technical support

Cons

  • Complex logistics for small batches
3

Shin-Etsu Silicones

Japan, Tokyo
4.7

Premier provider of custom-molded silicone parts for demanding applications.

Details

  • Year Founded: 1926
  • Employees: 5000-10000
  • Price Range: $$$
  • Phone: +1-330-630-9860
  • Email: silicones@shinetsusilicones.com

About the Company

Shin-Etsu delivers superior silicone molding services with a focus on durability and precision. Their vast material portfolio ensures the right silicone match for electronics, healthcare, and automotive industries, maintaining rigorous quality control.

Pros

  • High purity materials
  • Global reach

Cons

  • Limited customization for niche startups
4

Apple Rubber

United States, Lancaster
4.6

Expert custom rubber and silicone molding and sealing manufacturer.

Details

  • Year Founded: 1971
  • Employees: 200-500
  • Price Range: $$
  • Phone: +1-716-684-6560
  • Email: info@applerubber.com

About the Company

Apple Rubber excels in custom molding with a heavy emphasis on design engineering and prototyping. Their fast turnaround times and ability to handle specialized compounds make them a preferred partner for custom seals and complex geometries.

Pros

  • Rapid prototyping
  • Strong design support

Cons

  • Lead times vary for custom molds
5

Trelleborg Sealing Solutions

Sweden, Trelleborg
4.8

Leading global supplier of high-performance polymer solutions.

Details

  • Year Founded: 1905
  • Employees: 10000+
  • Price Range: $$$
  • Phone: +46-410-67000
  • Email: info@trelleborg.com

About the Company

Trelleborg combines innovative material science with advanced molding techniques. Known for reliability in extreme environments, they offer custom silicone molding services that adhere to aerospace, pharmaceutical, and automotive standards.

Pros

  • Unmatched durability
  • Wide industry compliance

Cons

  • High barrier to entry for small orders
6

SIMTEC Silicone Parts

United States, Miramar
4.7

Experts in high-volume, liquid silicone rubber injection molding.

Details

  • Year Founded: 2001
  • Employees: 100-200
  • Price Range: $$$
  • Phone: +1-954-979-9130
  • Email: info@simtec-silicone.com

About the Company

SIMTEC focuses exclusively on LSR molding, providing high-efficiency solutions for the medical and consumer product industries. Their cleanroom facilities and automation expertise ensure cost-effective, high-quality production runs.

Pros

  • Cleanroom production
  • LSR specialization

Cons

  • Focused on large volumes
7

Viking Plastics

United States, Corry
4.5

Custom silicone molder offering comprehensive manufacturing support.

Details

  • Year Founded: 1972
  • Employees: 200-500
  • Price Range: $$
  • Phone: +1-814-724-8032
  • Email: info@vikingplastics.com

About the Company

Viking Plastics provides versatile molding services, blending quality and engineering depth. They offer extensive design-for-manufacturing consultation, helping clients optimize their parts for silicone molding efficiency and performance.

Pros

  • Excellent client support
  • Process optimization

Cons

  • Limited presence outside US
8

Freudenberg Sealing Technologies

Germany, Weinheim
4.9

Global experts in precision seals and silicone component molding.

Details

  • Year Founded: 1849
  • Employees: 10000+
  • Price Range: $$$$
  • Phone: +49-6201-80-0
  • Email: contact@fst.com

About the Company

Freudenberg is a world leader in sealing and custom molding. They bring decades of experience to the table, delivering robust silicone components that excel in heat, pressure, and chemical resistance for industrial clients.

Pros

  • Engineering excellence
  • Global manufacturing network

Cons

  • Higher price point
9

RD Rubber Technology

United States, La Mirada
4.6

Precision molding of rubber and silicone for critical components.

Details

  • Year Founded: 1987
  • Employees: 50-100
  • Price Range: $$$
  • Phone: +1-562-404-3500
  • Email: sales@rdrubber.com

About the Company

RD Rubber specializes in high-precision, tight-tolerance molding. They are a go-to partner for military, aerospace, and medical sectors needing custom silicone parts that maintain consistency across batches.

Pros

  • Tight tolerances
  • ISO certified

Cons

  • Longer lead time for design
10

Zeus Industrial Products

United States, Orangeburg
4.7

High-performance polymer and silicone molding solutions.

Details

  • Year Founded: 1966
  • Employees: 1000-5000
  • Price Range: $$$
  • Phone: +1-803-268-9500
  • Email: info@zeusinc.com

About the Company

Zeus is widely recognized for its expertise in high-performance materials. Their silicone molding services are tailored for highly specialized medical and industrial applications, where precision and material purity are non-negotiable.

Pros

  • Advanced material expertise
  • Innovative solutions

Cons

  • Specific industry focus
11

Marco Rubber & Plastics

United States, Seabrook
4.5

Broad supplier of custom molded silicone seals and components.

Details

  • Year Founded: 1980
  • Employees: 200-500
  • Price Range: $$
  • Phone: +1-603-465-3300
  • Email: sales@marcorubber.com

About the Company

Marco Rubber offers a massive inventory and custom molding services. They provide great flexibility for companies needing quick turnaround times, supported by a strong supply chain network and expert technical advice.

Pros

  • Huge material selection
  • Fast delivery

Cons

  • Best for standard projects
12

Momentive Performance Materials

United States, Waterford
4.8

Global producer of advanced silicone resins and molding compounds.

Details

  • Year Founded: 2006
  • Employees: 1000-5000
  • Price Range: $$$$
  • Phone: +1-800-295-2392
  • Email: info@momentive.com

About the Company

Momentive provides the foundational materials and technical expertise for complex silicone molding. Their global network supports large-scale industrial customers looking for custom-tailored polymer performance and molding reliability.

Pros

  • Scientific research focus
  • Reliable supply

Cons

  • Less focused on small custom batches
13

CGR Products

United States, Greensboro
4.6

Custom fabrication and molding services for diverse industries.

Details

  • Year Founded: 1963
  • Employees: 100-200
  • Price Range: $$
  • Phone: +1-800-444-2470
  • Email: info@cgrproducts.com

About the Company

CGR Products is a reliable choice for custom rubber and silicone parts. They focus on delivering cost-efficient solutions and excellent customer service for businesses of all sizes, ensuring high standards in every component produced.

Pros

  • Cost-effective
  • Responsive team

Cons

  • Smaller scale operations
14

Moxness Products

United States, Racine
4.5

Specialized molder of high-quality silicone products.

Details

  • Year Founded: 1952
  • Employees: 100-200
  • Price Range: $$$
  • Phone: +1-262-554-5050
  • Email: sales@moxness.com

About the Company

Moxness specializes in silicone rubber molding for high-performance applications. With deep experience in automotive and aerospace, they ensure that every molded component withstands rigorous environmental conditions.

Pros

  • Specialized experience
  • Strong engineering team

Cons

  • Limited website visibility
15

Northern Engineering

United States, Superior
4.5

Custom molding services for varied industrial needs.

Details

  • Year Founded: 1994
  • Employees: 50-100
  • Price Range: $$
  • Phone: +1-715-394-4866
  • Email: info@northern-eng.com

About the Company

Northern Engineering provides a focused and customized approach to silicone molding. Their reputation is built on high-quality precision, helping clients transition from initial design concepts to finished products smoothly.

Pros

  • Personalized service
  • High accuracy

Cons

  • Smaller workforce

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Frequently Asked Questions

FAQ

  • What services do custom silicone molding companies offer? They provide end-to-end solutions including prototyping, material selection, mold design, and high-volume production.
  • How do I choose the best silicone molder? Look for ISO certification, experience with complex geometries, and capabilities in liquid silicone rubber (LSR) processing.
  • What industries use custom silicone molding? Medical, automotive, aerospace, and consumer electronics industries rely heavily on these services.
  • What is the typical lead time for silicone molding? Lead times vary based on mold complexity, but standard prototypes can take 2-4 weeks.
  • Why is LSR molding preferred? Liquid Silicone Rubber offers superior thermal stability, chemical resistance, and high precision for intricate parts.
  • Can these companies assist with product design? Yes, most top-tier molding firms offer design-for-manufacturing (DFM) consultation services.