Food Processing
Equipment

Food Processing Equipment Seals & Gaskets

Food processing equipment presents a range of high-temperature sealing challenges. Commercial smokers, ovens, cookers, smokehouses, chillers, dampers, and access doors are exposed to thermal cycling, moisture, repeated cleaning, and frequent operation. Sealing components need to maintain compression and fit while accommodating the movement that comes with changing temperatures.

Gaskets, Inc. manufactures custom sealing products for food processing and commercial cooking equipment. Our silicone sponge seals, silicone rubber sheeting, tadpole seals, and custom extruded profiles are manufactured to the dimensions and requirements of the equipment. With more than 65 years of thermal sealing experience, we understand that the right solution depends on more than temperature alone.

Industry Challenges

Sealing problems in food processing equipment are often related to a combination of temperature, movement, compression, and equipment design. A seal may perform well in one application but have a shorter service life in another based on installation, cycle frequency, surface condition, or the amount of compression available.

Common challenges include:

  • Elevated operating temperatures
  • Repeated heating and cooling cycles
  • Thermal expansion and contraction
  • Moisture and humidity exposure
  • Frequent door and access panel operation
  • Equipment vibration
  • Uneven or irregular sealing surfaces
  • Limited space for seal installation
  • Heat loss around doors and access points
  • Cleaning and maintenance cycles
  • Long equipment operating hours
  • Repeated seal replacement

Material selection and seal geometry both matter. The appropriate profile needs enough compression to establish a seal without being over-compressed, while the material must remain suitable for the temperatures and conditions it will encounter.

Sealing Solutions for Food Processing Equipment

Food processing equipment is rarely one-size-fits-all. Door construction, mounting methods, sealing surfaces, operating temperatures, and available compression can vary considerably between equipment designs.

Gaskets, Inc. works with OEMs, engineers, maintenance teams, contractors, and distributors to manufacture sealing products around those requirements.

Products commonly used in food processing equipment include:

  • GF132 Silicone Sponge Seals
  • GR132 Silicone Sponge Seals
  • GT132 Silicone Sponge P Seals
  • G76 Silicone Rubber Sheeting
  • Tadpole Seals
  • Custom Extruded Silicone Seals
  • High-Temperature Materials

GF132 Silicone Sponge Seals

GF132 is a medium-density silicone sponge material commonly used for commercial smoker and food processing equipment applications. Its flexibility and compressibility make it well suited for doors, dampers, access panels, and other locations where the seal needs to compress against a mating surface.

GF132 is rated for temperatures from -65°F to 500°F and is available in multiple sizes. It is commonly specified for commercial smokers and other OEM equipment where a flexible silicone sponge seal is required.

The profile, dimensions, and available compression should be considered when selecting a silicone sponge seal. Gaskets, Inc. can work from drawings, dimensions, samples, or other application information when a replacement or custom seal is needed.

G76 Silicone Rubber Sheeting

G76 silicone rubber sheeting provides a solution for applications requiring a flat gasket or custom-cut component. It can be fabricated into die-cut gaskets, flange gaskets, sleeves, and other custom shapes.

G76 is rated for temperatures from -65°F to 500°F. It can be a practical option when the equipment requires a flat gasket rather than an extruded profile.

Tadpole Seals

Tadpole seals are useful when an application requires a compressible thermal seal, particularly where the sealing surface is uneven or the available gap requires a specific bulb size.

A tadpole seal consists of a flexible tail and compressible bulb. The construction can be configured with different cover materials, core materials, bulb sizes, and tail dimensions to match the application.

Food processing applications for tadpole seals can include batch ovens, batch smokers, walk-in smokers, steam cookers, roasting ovens, and commercial chillers.

Choosing the correct core density, cover material, and dimensions can affect compression, recovery, service life, and overall sealing performance.

Common Applications

Gaskets, Inc. products are used in a variety of food processing and commercial cooking equipment applications, including:

  • Commercial smokers
  • Smokehouses
  • Meat curing equipment
  • Batch smokers
  • Walk-in smokers
  • Commercial ovens
  • Batch ovens
  • Roasting ovens
  • Steam cookers
  • Commercial chillers
  • Equipment doors
  • Smoker door seals
  • Oven door seals
  • Access panels
  • Dampers
  • Flanges
  • OEM processing equipment

The sealing approach depends on the equipment design. Silicone sponge profiles are often used where flexibility and compression are important, while flat silicone sheeting can be fabricated into custom gaskets for flanges and other mating surfaces. Tadpole seals can provide additional compression and conformability where equipment surfaces are uneven or require a thermal barrier.

Silicone Sponge Seals for Commercial Smokers

Commercial smokers are a common application for silicone sponge seals. Door seals are exposed to repeated temperature changes and frequent opening and closing, while maintaining an effective seal helps contain heat within the cooking chamber.

GF132 Silicone Sponge Seals are commonly used for smoker doors, dampers, access panels, and other OEM equipment applications. The material combines flexibility and compressibility with a temperature range suited to many commercial smoking applications.

Gaskets, Inc. also manufactures other silicone sponge profiles, including GR132 round seals and GT132 P-shaped seals. The appropriate profile depends on the equipment design, mounting method, sealing surface, and available compression.

For replacement applications, providing the existing seal, dimensions, profile, or equipment drawing can help determine the appropriate material and configuration.

smoker using gaskets seal on door

High-Temperature Seals for Ovens and Cooking Equipment

Ovens, cookers, and other thermal processing equipment can place significant demands on door and access-panel seals. Repeated temperature changes can cause components to expand and contract, while frequent access can accelerate wear at the sealing surface.

Tadpole seals can be used where a compressible thermal seal is needed around an oven door, access panel, or other high-temperature sealing point. The bulb and tail can be configured to suit the available gap and installation method.

Silicone sponge seals provide another option when the application calls for a flexible, compressible profile. Flat silicone sheeting can also be used where a custom-cut gasket is a better fit for the equipment.
The goal is not simply to select a material that can withstand the temperature. Seal geometry, compression, surface condition, installation, and operating cycles all contribute to long-term sealing performance.

Supporting Reliable Food Processing Equipment

A sealing component is a relatively small part of a larger piece of equipment, but the wrong seal can create unnecessary heat loss, maintenance issues, and downtime. Getting the material and geometry right at the start can help reduce those problems over the life of the equipment.

Gaskets, Inc. works with OEM engineers, maintenance teams, and industrial buyers to solve real-world sealing requirements. We can manufacture from established specifications or help evaluate an application when the correct material or profile is not immediately clear.

With more than 65 years of experience manufacturing thermal sealing products in Wisconsin, our team understands the practical considerations that go into high-temperature sealing—from material selection and compression to fabrication and repeatability.

Customers choose Gaskets, Inc. for:

  • More than 65 years of thermal sealing experience
  • Custom manufacturing capabilities
  • Application-focused product selection
  • Custom fabrication in Wisconsin
  • Experienced production teams
  • Responsive customer service
  • Reliable lead times
  • Long-term industrial partnerships

From commercial smokers and ovens to cookers, chillers, dampers, and other food processing equipment, Gaskets, Inc. manufactures sealing products designed around the application—not simply a catalog part number.