Company

Who We Are

Stockwell Elastomerics is a U.S.-based manufacturer specializing in precision silicone elastomer components. Since our founding, we’ve supported engineers and OEMs designing equipment that must seal, insulate, or protect in extreme environments.

We serve industries where precision and reliability are non-negotiable, including aerospace, defense, medical diagnostics, semiconductor, and robotics.

What We Do

We help customers solve sealing and protection challenges with a focused set of capabilities:

• Custom gasket fabrication – die-cut, waterjet-cut, molded, or laminated assemblies
• Silicone & fluorosilicone materials – foams, sponges, and solid sheets engineered for temperature, compression, and chemical resistance
• EMI shielding components – conductive silicones, absorbers, and grounding gaskets for electronic enclosures
• Rapid prototyping – from CAD to production-quality parts in days, not weeks

Explore offerings:

• Custom Gaskets & Seals
• Adhesive-Laminated Gaskets & Assemblies
• EMI Shielding Materials & Components
• Rapid Prototyping & Sampling

What We’re All About: Rapid Response

In technology equipment, the last component specified is often the gasket or cushioning pad—right when timelines are tight and performance requirements are fully defined. Stockwell Elastomerics is continually building capabilities to deliver unmatched responsiveness for designers and OEMs requiring silicone rubber gaskets and silicone cushioning pads to perform in temperature extremes and meet ruggedization requirements.

How we support speed without compromising quality:

• An on-site Applications Engineering Team that handles rapid-response development every day
• Prototyping processes designed to keep capacity available for low-volume, fast-turn builds
• Production and customer service teams located together for seamless communication

Inventory: Plenty of It

Our Rapid Response Model is powered by a deliberate investment in on-shelf inventory of:

• Silicone foam, closed cell silicone sponge, solid silicone rubber
• Liquid silicone rubber (LSR)
• 20+ pressure sensitive adhesives for specific bonding challenges

In a world where large inventories have their critics, we believe in smart buying and maintaining breadth. One of our founder’s principles still holds true today: “You can’t sell from an empty wagon.”

Our Core Competence

What we do best is solve design and logistics challenges for customers in the technology sector—especially when performance issues arise late in the design cycle. We’re frequently called in just prior to product launch, when the gasket, seal, or pad must perform flawlessly and ship fast.

Production and Service Capabilities

Stockwell Elastomerics provides a full range of production capabilities in the U.S., including:

• Die cutting of solid and sponge rubber (including PORON® cellular urethanes, silicone foam, silicone sponge, and other elastomers)
• Compression and transfer molding of silicone, fluorosilicone, and electrically conductive materials for EMI shielding
• Silicone injection molding (LSR) of gaskets, seals, and custom components from 10 to 70 durometer Shore A, in standard and custom colors
• Pressure sensitive adhesive lamination onto silicone rubber, PORON® cellular urethanes, and other high-performance materials (including a specialty capability: acrylic adhesive laminated to silicone rubber)
• Bonded assemblies including layered bonding, conductive coating for ESD grounding, and corner splicing of large silicone gaskets
• Waterjet cutting of sponge and solid rubber gaskets using clean, non-abrasive systems
• A single on-site manufacturing facility operating two production shifts, with production and customer service co-located

If your requirements align with our core strengths, we welcome visits to our facility—call to arrange a tour and discuss how we can help.

Learn more: Manufacturing Capabilities

Niche Markets We Serve

Our prime customer base includes manufacturers in:

• Analytical instrumentation
• Medical diagnostic equipment
• Industrial controls
• Information technology
• Portable data acquisition
• Telecommunications equipment
• Aerospace & defense
• Ruggedized devices
• LED lighting
• Alternative energy

See industry solutions: Industries We Serve

Commitment & Dedication

Stockwell Elastomerics is dedicated to serving OEMs and specialized equipment users in the technology sector—especially manufacturers who leverage design innovation as a competitive strategy. When performance matters and timelines compress, we bring engineering support, material depth, and manufacturing agility to help you deliver.

Partners

We maintain strong material partnerships that expand what we can deliver—fast—while keeping performance and consistency high.

Partner highlights:

• Rogers Corporation (Preferred Converter): Rogers BISCO® silicones and PORON® foams
• Saint-Gobain: NORSEAL / COHRlastic silicone products + fast-turn gasket production
• Specialty Silicone Products (SSP): specialty silicones including conductive and high-purity grades
• 3M™ (Preferred Converter): acrylic and silicone PSA systems, including solutions that enable acrylic adhesives to bond to silicone rubber

Explore the full partner details:

• Rogers / BISCO® & PORON®
• Saint-Gobain / NORSEAL & COHRlastic
• Specialty Silicone Products (SSP)
• 3M™ Adhesives

Ready to talk through an application?

Whether you need a fast prototype, a production-ready adhesive-backed gasket, or a specialized EMI sealing solution, our team can help.