Custom Extruded Rubber Gaskets and Seals

Table of Contents

• Precision-Made Sealing Solutions
• Capabilities of Custom Extruded Rubber Gaskets
• Why Choose Kismet?
• FAQs

Custom extruded rubber gaskets and seals create airtight, watertight, and chemical-resistant barriers in the most demanding industrial environments. At Kismet Rubber Products, we manufacture high-performance sealing solutions with precision, speed, and the material expertise required to meet the demanding needs of both low- and high-volume B2B clients.

If your application depends on durability and exact fit, our custom extrusion capabilities deliver unmatched results.

Precision-Made Sealing Solutions for Demanding Environments

Kismet Rubber Products manufactures custom extruded rubber gaskets and seals of the utmost quality – and reliability. With over 60 years of experience and ISO 9001:2015 registered, we specialize in creating extrusion profiles that meet exacting standards for OEM and replacement markets.

Our team delivers parts that are installation-ready, available in continuous coils, cut lengths, or custom shapes to match your application requirements.

Kismet’s in-house tooling, curing, and splicing capabilities ensure consistent quality for both simple and complex geometries. We offer a range of options, including endless o-ring gaskets, window-style seals, door gaskets, filler strips, and U-shaped profiles, all designed to perform reliably in your high-demand environments.

Common Applications and Industries Served

Numerous industries trust our custom extruded rubber gaskets and seals when they need reliable sealing performance under pressure. Below are some of the primary industries we serve:

• Aerospace: High-temperature resistance and precision tolerance for aircraft and components.
• Electronics: Protection against dust, moisture, and electrical interference.
• Construction: Reliable sealing for doors, windows, and structural systems.
• Transportation: Durable compounds for vibration absorption and noise control.
• Marine: Saltwater-resistant seals for vessels and dock equipment.
• Food Processing & Healthcare: FDA and NSF-approved compounds for sanitary applications.
• Power Generation: Heat and chemical-resistant gaskets for demanding environments.

One of our largest gaskets, used in a military vehicle engine compartment, is built from five molded pieces of extruded silicone. It demonstrates how hybrid processes (extrusion + injection molding) can create massive, high-performance seals for extreme environments.

Each industry benefits from Kismet’s custom material formulations – such as BUNA-N, EPDM, Neoprene®, SBR, Viton®, and silicone – ensuring your seals perform to exact specifications and meet regulatory standards.

What are the Capabilities of Custom Extruded Rubber Gaskets & Seals Manufacturing?

Our custom extruded rubber seals and gaskets are manufactured with tight tolerances and end-use durability in mind, ensuring you get ultimate peace of mind throughout production. Kismet Rubber Products' custom extrusion services include the following:

• Profile sizes ranging from 0.060" to 4.00" thick and up to 6.00" wide, with a maximum cross-sectional area of 12.00 square inches
• In-house tooling and die production for extrusion profiles, splicing molds, and corner mold applications
• Multiple curing systems, including continuous microwave, salt bath, steam, and hot air vulcanization, are used to allow tighter tolerances, extended lengths, and faster cure cycles
• High-precision extrusion of both dense and sponge materials in simple or complex geometries
• Cutting processes using guillotine, electro-cut (lathe cut), Versa, or Thropp methods for accurate sizing
• Vulcanized splicing, including mitered and injection-molded corners for seamless integration
• Value-added services such as in-line marking, notching, hole punching, slitting, and multi-material assemblies (metal/rubber, plastic/rubber)

Every gasket and seal we produce reflects our commitment to quality, performance, and repeatability. Your component isn't just another part: it’s a precision-engineered solution backed by over six decades of expertise.

Custom Rubber Gasket and Seal FAQs:

How are extruded rubber gaskets different from molded parts?

Extruded rubber gaskets are made from continuous profiles pushed through a die, which are great for larger sizes and lower tooling costs. Molded gaskets, however, use shaped cavities, allowing for tighter tolerances and complex geometries, including molded or spliced corners.

For applications requiring higher consistency, such as aerospace, fully molded gaskets are often necessary. Injection-molded corners improve durability, but butt-spliced joints may show visible seams.

Can you manufacture in high volumes for OEMs?

Yes! Kismet Rubber Products specializes in high-volume custom extruded rubber seals and gaskets for OEM and industrial clients.

Do custom extruded rubber gaskets require tooling for each project?

Yes. Every custom extruded rubber gasket requires a unique die or tooling to match the exact profile and material specifications of your application. Tooling is typically cost-effective, and the die must also account for extrusion speed and environmental factors, both of which can affect the final shape and tolerance. Extrusion dies are typically very cost-effective.