OEM & Custom Silicone Sealing Services

Custom Silicone Seals Manufacturer

Temco Rubber is a premier custom silicone seal manufacturer and supplier, delivering high-performance sealing solutions for demanding industrial environments. We engineer precision silicone rubber seals designed to withstand extreme thermal fluctuations (-60°C to +230°C), aggressive chemical exposure, and severe mechanical stress according to your exact CAD specifications.

20 to 80 Shore A

-60°C to +230°C Resilience

LSR & Compression Molding

FDA & Medical Biocompatible

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Custom Silicone Seals Manufacturer by Temco Rubber

Custom Molded Silicone Seal Geometries

Standard off-the-shelf O-rings often fail in specialized assemblies. We manufacture bespoke silicone seals with complex cross-sections and intricate profiles engineered around your hardware.

Lip Seals & Rotary Seals

Engineered for dynamic applications requiring minimal friction, superior abrasion resistance, and long-term fluid retention.

Precision Diaphragms

Flexible, high-tear membranes designed to facilitate fluid movement while maintaining a hermetic, pressure-tight barrier.

Bellows & Expansion Boots

Convoluted flexible covers protecting moving joints and shafts from dust, moisture, and extreme axial or angular displacement.

T-Profiles & D-Profiles

Custom extruded and molded profile channels tailored for specialized door tracks, hatches, and compression interfaces.

Industrial Applications & Material Compliance

Our material science expertise allows us to formulate VMQ silicone compounds tailored for specific operational environments.

Automotive & Aerospace

Formulated for rapid pressure changes, intense mechanical vibration, and weatherability. Provides long-term ozone and temperature resistance in engine bays, fuel delivery systems, and environmental control units.

Industrial Enclosures & Electronics (IP67/IP68)

Delivers IP-rated environmental weather sealing for lighting fixtures, outdoor telecom cabinets, and industrial pumps, shielding internal circuitry from water ingress and fine dust.

Food Processing & Medical Devices

High-purity, odorless, and tasteless silicone seals fully compliant with FDA standards. Medical-grade formulations biocompatible for repeated autoclaving and sterilization cycles.

Precision Silicone Manufacturing & QC

Combining in-house tooling with advanced molding processes to achieve micron-level part accuracy.

Liquid Silicone Rubber (LSR) Injection Molding

Ideal for miniature sealing components, complex geometries, and high-volume production. Delivers flashless parts with tight tolerances and rapid cycle times.

Compression Molding

Cost-effective tooling strategy for medium-to-high volume production of larger or high-durometer HCR silicone seals, providing maximum density and stability.

Integrated CMM & Compression Set Testing

Rigorous quality protocols analyzing Compression Set Resistance (ISO 815-1), Tensile Strength, and CMM dimensional conformity on every batch.

Precision Silicone Seal Manufacturing and Tooling Design

Why Partner with Temco Rubber?

Full-service engineering consultancy and dependable manufacturing agility.

Custom Geometries

Bespoke profiles engineered around your hardware, eliminating design compromises.

Full DFM Support

Engineering feedback on 3D CAD files to optimize seal manufacturability and lower tooling costs.

Material Traceability

Full raw material certs ensuring complete compliance with REACH, RoHS, FDA, and ISO standards.

Prototype to Series

Flexible capacity scaling seamlessly from small trial batches to multi-million OEM runs.

Frequently Asked Questions

Technical answers directly grounded in our custom silicone seal manufacturing documentation.

What is the difference between standard silicone seals and custom molded seals? +

Standard silicone seals, such as generic O-rings, are manufactured to universal size charts (like AS568). While cost-effective, they often require the mechanical design to be compromised to fit the seal. Custom molded seals, however, are engineered around your specific hardware. This allows for complex shapes, varied wall thicknesses, and the integration of multiple sealing lips into a single part. Custom seals also allow for specific material compounding—adjusting for exact chemical resistance or friction coefficients—that standard off-the-shelf parts cannot provide.

Can Temcorubber manufacture silicone seals bonded to metal or plastic inserts (Overmolding)? +

Yes. We specialize in silicone-to-substrate bonding, also known as overmolding or insert molding. This process involves chemically and mechanically bonding the silicone elastomer to a rigid base, such as stainless steel, brass, or high-temp plastics (like PEEK or PPS). This is highly beneficial for applications like reinforced diaphragms, valve seats, and rotary shaft seals where the component requires both the structural strength of a metal and the sealing flexibility of silicone.

How do I choose the right silicone compound for dynamic vs. static sealing applications? +

Choosing the right compound depends on the mechanical movement involved. For static sealing (where there is no movement between surfaces), the primary concern is Compression Set—the ability of the silicone to maintain its sealing force over time. For dynamic sealing (where parts move against the seal), we focus on abrasion resistance and coefficient of friction. We may recommend specialized fluorosilicone (FVMQ) if oil resistance is required, or high-tear-strength silicone grades for applications involving frequent stretching or mechanical cycling. Our engineering team can guide you through the selection process based on your application's cycle life and environmental exposure.