OEM & Custom Silicone Components

Custom Silicone Washer Manufacturer

As a premier custom silicone washer manufacturer and supplier, Temco Rubber specializes in the engineering and high-volume production of precision elastomeric components. We manufacture custom silicone washers for demanding sealing, insulation, spacing and vibration-control applications according to your drawings, samples and technical specifications.

30–80 Shore A -60°C to +230°C Custom ID / OD / Thickness Prototype to Mass Production
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Custom Silicone Washer Manufacturer and Supplier - Temco Rubber

Custom Molded Silicone Washers & Specifications

While many suppliers focus primarily on standard die-cut components, Temco Rubber specializes in the production of custom molded silicone washers. Molding allows engineers to move beyond simple flat profiles and introduce radii, chamfers, sealing ribs, stepped sections and varying wall thicknesses.

This capability is particularly important when a conventional flat washer cannot generate the required sealing force, electrical isolation or mechanical interlocking within an assembly.

By combining precision manufacturing with our silicone mold tooling capabilities , we can develop washers around your exact application rather than forcing your product to accommodate a standard component.

Custom Manufacturing Capabilities

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Dimensional Range
Miniature precision washers through large industrial sealing components.
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30–80 Shore A Hardness
Different levels of flexibility, compression and load-bearing capacity.
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Custom Profiles
Flat, stepped, flanged, countersunk and grooved washer geometries.
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Specialized Silicone Compounds
High-tear, low-compression-set and conductive formulations.

Custom Silicone Washer Types

We manufacture standard and complex washer geometries according to customer drawings, CAD data, samples, dimensions and application requirements.

Custom Flat Silicone Washers

Flat Silicone Washers

Precision circular washers for sealing, spacing, vibration isolation and electrical insulation applications.

Custom Stepped Silicone Washers

Stepped Washers

Multi-level molded profiles designed to locate components, distribute load and create controlled sealing interfaces.

Custom Flanged Silicone Washers

Flanged Washers

Molded flanges provide additional locating, retention and sealing functionality in mechanical assemblies.

Grooved and Complex Molded Silicone Washers

Grooved & Complex Profiles

Custom molded geometries featuring ribs, grooves, chamfers and application-specific sealing surfaces.

High-Performance Silicone Rubber Washers

Silicone rubber combines thermal stability, elasticity, electrical insulation and environmental resistance, making it suitable for demanding industrial washer applications.

01

Electrical Insulation & Damping

Silicone washers can function as dielectric insulating washers between fasteners, electronic assemblies and conductive surfaces. Their elastomeric structure also helps absorb vibration and mechanical shock that could otherwise fatigue sensitive components.

02

Fluid & Gas Sealing

Custom silicone sealing washers can create a defined sealing interface between mating surfaces. Material hardness, washer geometry, compression, and the operating environment should be considered together during design.

03

Food & Sanitary Applications

For food, beverage, healthcare, or sanitary equipment, any material, cleanliness, or regulatory documentation requirements should be defined before material approval.

Silicone Washer Applications

Custom silicone washers can perform multiple functions within industrial equipment, electrical systems and OEM assemblies.

Electronics & Telecommunications

Electrical isolation, vibration damping and protection of circuit boards, enclosures, fasteners and sensitive electronic hardware.

Industrial Valves & Fluid Systems

Static sealing interfaces used in plumbing equipment, industrial valves, manifolds and fluid-handling assemblies.

Automotive & Aerospace Assemblies

Temperature-resistant washers for vibration-prone assemblies, electrical hardware and components exposed to thermal cycling.

Food, Beverage & Healthcare Equipment

Application-specific silicone formulations for equipment requiring hygienic sealing, heat resistance and repeated cleaning or sterilization cycles.

Precision Silicone Washer Manufacturing Process

Our washer process moves from engineering review and tooling through sampling, molding, inspection, and repeat production.

1. Engineering & Tooling Development

Part geometry, ID, OD, thickness, tolerances, material requirements and annual production volume are reviewed before developing the appropriate mold configuration.

2. Multi-Cavity Mold Production

Multi-cavity tooling can be evaluated for suitable higher-volume projects where the geometry and production requirements support it.

3. Controlled Silicone Molding

Molding temperature, pressure, cure time, and other process parameters are controlled according to the selected silicone compound and part geometry.

4. Inspection & Post-Curing

Dimensional inspection focuses on critical characteristics including Inner Diameter, Outer Diameter and Thickness. Post-curing can also be applied where the application requires additional material stabilization.

Precision Silicone Washer Manufacturing Process

Custom Washer Specifications

Washer specifications can be customized based on your assembly design, operating conditions and performance requirements.

30–80 Shore A Hardness Range
-60°C Low Temperature Capability
+230°C High Temperature Capability
Custom ID, OD, Thickness & Geometry

Your Custom Silicone Washer Supplier

Temco Rubber supports custom washer projects from early engineering evaluation through tooling, prototyping and series production.

01

Prototype Development

Validate geometry, fit and functionality before committing to full production volumes.

02

Scalable Production

Manufacturing capacity can scale from specialized smaller runs to high-volume OEM production.

03

Dimensional Quality Control

Critical ID, OD and thickness dimensions can be inspected against customer drawings and CAD specifications.

04

Custom Mold Tooling

We can design and manufacture the production mold when suitable tooling is not already available.

Selected Silicone Washer Projects

Published project examples that support the custom washer manufacturing capability described on this page.

Silicone Washer or O-Ring?

Washers are usually specified by ID, OD, thickness, and flat or stepped geometry for spacing, insulation, load distribution, or static sealing. O-rings are circular-section seals typically defined by inside diameter and cross-section and are designed around a sealing groove.

Frequently Asked Questions

Technical information about custom molded silicone washers, tolerances and sealing performance.

What is the advantage of molded silicone washers over stamped or die-cut washers? +
Molded silicone washers allow significantly more geometric freedom than washers cut from flat sheet material. The molding process can create features such as tapered edges, sealing ribs, steps, flanges and varying cross-sectional thicknesses. Molded components can also provide a more consistent finished edge and are particularly useful for thick or geometrically complex washer designs.
What thickness tolerances can you achieve for custom silicone washers? +
Achievable washer tolerances depend on ID, OD, thickness, material hardness, geometry, tooling, and the molding process. Critical tolerances should be identified on the drawing so they can be reviewed before tooling and confirmed during sample approval.
Are silicone sealing washers reusable after being compressed? +
Silicone has good elastic recovery and low compression-set characteristics, so washers may remain reusable in some static sealing applications when they have not been exposed to conditions beyond their material limits. For critical pressure, vacuum or safety-sensitive seals, replacing the washer during maintenance is generally preferable to ensure reliable sealing performance.

Need a Custom Silicone Washer?

Send your CAD drawing, sample, ID/OD/thickness dimensions, material requirements, critical tolerances, and expected production quantity. Our engineering team can review the appropriate material, tooling, and manufacturing process.

Request a Custom Washer Quote

For broader sealing and molded component requirements, explore our custom silicone parts manufacturing capabilities for OEM silicone products.

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