OUR PRODUCTS
PTFE/Teflon Envelope Shims
PTFE / Teflon Envelope Shims for Extreme Chemical and Thermal Environments
Oleumfield Tech manufactures custom PTFE (Teflon) envelope shims designed to perform in environments where other materials fail. Engineered for chemical resistance, high-temperature stability, and low friction, PTFE shims deliver long-lasting reliability in critical sealing, spacing, and insulation applications.
Our CNC-cut PTFE components maintain exceptional dimensional accuracy and surface smoothness, making them ideal for precision mechanical systems and corrosive process lines.
What Are PTFE Shims?
PTFE envelope shims are precision-cut spacers or gaskets that use a Teflon outer layer to provide a protective barrier against harsh chemicals, while maintaining mechanical strength from the inner filler or core material (such as rubber, metal, or fiber).
This design combines chemical inertness with structural stability, ensuring dependable performance even in aggressive industrial or laboratory environments.
At Oleumfield Tech, every shim is CNC-cut to exact tolerances, ensuring a tight fit and smooth finish. Whether you need solid PTFE sheets, laminated envelope designs, or multi-layer composites, we can cut to your exact drawing, sample, or CAD model.
Our fabrication capabilities include:
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CNC laser, router, and knife cutting
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Custom thicknesses from 0.010″ to ½″
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Envelope and solid PTFE options
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Flat or contoured shapes
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Adhesive backing for easy installation
Exceptional chemical resistance
PTFE shims withstand harsh acids, solvents, and hydrocarbons without breaking down, making them ideal for corrosive process environments.
Wide temperature range
They maintain stability from -400°F to +500°F, performing reliably in both cryogenic and high-heat industrial conditions.
Low friction, non-stick surface
The naturally slick Teflon surface prevents sticking, galling, or material buildup — ensuring smooth operation and easier maintenance.
Superior electrical and thermal insulation
PTFE’s non-conductive properties make it excellent for electrical, electronic, and thermal isolation applications where insulation and cleanliness are critical.
PTFE Shims Properties & Performance Overview
Category | Details |
|---|---|
UV / Weather Resistance | Unaffected by sunlight and ozone exposure |
Non-Wetting Surface | Prevents adhesion and buildup |
Dielectric Strength | Excellent electrical insulation |
Coefficient of Friction | Extremely low – non-stick and self-lubricating |
Chemical Resistance | Inert to most acids, solvents, and hydrocarbons |
Temperature Range | -400°F to +500°F (-240°C to +260°C) |
Common Industries & Uses for PTFE Shims
Industry | Typical PTFE Shim Applications |
|---|---|
Laboratory & R&D | Chemical-resistant test cell components |
Electrical & Electronics | High-voltage insulation, dielectric spacers |
Aerospace & Defense | Lightweight insulating shims, vibration barriers |
Pharmaceutical & Food | Sanitary seals, contamination-resistant surfaces |
Oil & Gas | Corrosive media isolation, spacer gaskets |
Chemical Processing | Lined flange shims, pump and valve seals |
Oleumfield Tech is a trusted manufacturer of PTFE/Teflon Shims
Teflon shims, made from PTFE (Polytetrafluoroethylene), are chemical-resistant, non-stick alignment components ideal for precision spacing in corrosive or high-purity environments. Known for their low friction coefficient, non-reactivity, and excellent thermal and electrical insulation, Teflon shims are widely used in chemical processing, food and beverage, cleanroom, pharmaceutical, and electronics industries.
These shims are ideal for applications where metal contact must be avoided or where exposure to harsh chemicals, moisture, or extreme temperatures would compromise traditional materials. Teflon shims resist wear, do not absorb moisture, and maintain performance across a wide temperature range.
At Oleumfield Tech, we manufacture custom PTFE shims using precision CNC cutting, available in multiple thicknesses and shapes to suit a wide range of specialty and industrial needs.
Proudly Serving Houston, Texas and the Gulf Coast Region
Based near Houston, Texas, Oleumfield Tech proudly supplies PTFE shims and custom sealing products to industrial clients throughout the Greater Houston area, the Gulf Coast.
Houston is the heart of the oil and gas, petrochemical, and power generation industries, and that’s where our expertise shines. From refineries in Baytown to chemical plants in Pasadena and manufacturing facilities in Cypress, we provide fast, reliable shim production and delivery to keep your operations running smoothly.
