Mechanical Sealing System

Sandborn Mechanical Sealing System

Leading with innovation, sealing with precision.

Sandborn Mechanical Sealing System

Exposed to the harshest conditions: whether in extreme heat or cold, a Sandborn seal is engineered to exceed all standards and operate under the most demanding applications.

Sandborn seals utilize the highest quality stainless steel, and are designed and fabricated using the latest technology and manufacturing processes.

With years of experience and expertise, expect a Sandborn seal to perform above the competition and deliver the most effective emission control, each and every time.

Perimeter Seals

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Secondary Compression Plate

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Optional Foam Dam

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Vapour Barriers

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Mechanical Shoe Seal

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Perimeter Seals


Duo-Tip	Bubble Tip	Horizontal Wedge	Vertical 5" Wiper
Lightweight seal design meeting regulatory requirements. Best suited for finished products such as gasoline, sales oil, and others. PVC-Nitrile composition with dual contact points. Economical.	PVC-Nitrile composition designed to reduce adhesion issues. Proven in temperatures ranging from -35ºC through to 104ºC, the best seal tip available for long service life and regulatory compliance. Can be wrapped for additional adhesion resistance.	Available in multiple widths and adaptability to all shell configurations. Wrapped with protective urethane or optional reinforced Teflon for UV resistance, a great option to meet the needs of tanks with out of compliance shell conditions.	Seal tip with the highest degree of closing force. Fabricated from PVC-Nitrile, the Vertical 5" Wiper Tip offers excellent conformance to tank shells and a long service life. Can be wrapped with Teflon for additional adhesion resistance and an optional Teflon infused band.

Secondary Compression Plate

Leading with Innovation, Sealing with Precision

The best secondary seal in the industry, period. Custom designed for each and every application, a Sandborn Secondary Seal meets the unique requirements of each tank, delivering the emission control results and service life you need. Exposed to the harshest of conditions, whether extreme heat or cold, expect a Sandborn Seal to deliver.

Each seal assembly is tested prior to shipment to ensure superior functionality. With years of experience and expertise, expect a Sandborn Secondary Seal to perform above the competition, delivering the most effective emission control every time.

20+ years of proven custom design experience.
Fabricated from premium 304 series stainless steel. Multiple plate gauges available for custom applications.
Meets North American regulatory requirements and API 650 standards. SCAQMD, BAAQMD, and EPA approved.
Can be installed with the tank remaining "in service".
Fully tested prior to shipment providing the best emission control available.
The only true "anti-rollover" seal available

Optional Foam Dam

Designed per API 650 and NFPA 11 requirements, a Sandborn Foam Dam is a critical component in tank fire protection systems. Available in both galvanized and stainless steel with multiple plate gauges available, expect a Sandborn Foam Dam to provide the protection and service life you need.

API 650 and NFPA 11 compliant.
Stainless steel and galvanized options.
Critical component for effective fire suppression systems.

Vapour Barriers

Premium fabrics are a vital component in delivering the effective emission control you need. Sandborn utilizes a number of premium fabrics in the implementation of the most effective seals in industry. PTFE, urethane, and a variety of additional fabrics are available to ensure the right material is utilized for each application. Expect the best when choosing a Sandborn supplied fabric.

Mechanical Shoe Seal

The primary component in emission containment. Sandborn utilizes only premium quality stainless steel in the custom fabrication of each shoe seal assembly. Plate heights designed to maximize tank operation and the only shoe seal developed to distribute loading, trust a Sandborn Shoe Seal to give the best performance of any seal available. With a long service life and exceeding regulatory requirements, Sandborn delivers.

3000+ installations worldwide
Exceeds regulatory requirements
Can be installed with the tank remaining "in service"
Custom engineered for each application

Expertise Delivers

40+ years of
proven custom
design expertise

3,000+
installations worldwide

Designed to meet
all regulatory standards

Can be installed while
tank remains ‘In-Service’

No welding or
flame cutting required
for installation

SCAQMD, BAAQMD
and EPA approved

Photo of Sandborn's laser table in action, precisely cutting materials to custom specifications for each internal floating roof system, ensuring a perfect fit for every tank

Sandborn Seals: Innovative and Proven!

Every Sandborn Seal Assembly is custom-designed to meet the unique operating conditions of each individual tank. Our shoe seal plates are minimum 304 series stainless steel, with all components designed to meet diverse annular spaces and floating roof rim details. Our secondary compression plate seals are unique, and offer an industry exclusive ‘anti-rollover’ design like no other seal available.

Optional seal fabrics and secondary seal tips make a Sandborn Seal the preferred seal assembly with many prominent tank operators. Foam dam options are readily available, and designed to comply with the most stringent standards and operating conditions. We also offer a patented ‘deck positioner’ to ensure proper seal contact with the tank shell is always maintained.

Sandborn Seal Assemblies provide the best emission control in the industry

Photo of the Test Deck used by Sandborn, Showcasing the platform for simulating and evaluating internal floating roof systems to ensure quality and performance before installation

Each Sandborn Seal Assembly is fully tested prior to shipment to site to ensure a properly functioning seal throughout the entire operating parameters of the tank. Each seal component is verified to ensure smooth operations, with closing forces recorded and provided for each seal assembly.

Our unique testing equipment has been engineered to simulate the conditions of actual floating roof operation, ensuring a Sandborn Seal Assembly will provide the best emission control possible.

Fully tested prior to shipment to site
Verified to ensure smooth operations
Engineered to simulate the conditions of actual floating roof operation
Guaranteed to provide the highest emission control possible

Sandborn Mechanical Sealing System

Leading with innovation, sealing with precision.

Sandborn Mechanical Sealing System

Exposed to the harshest conditions: whether in extreme heat or cold, a Sandborn seal is engineered to exceed all standards and operate under the most demanding applications.

Sandborn seals utilize the highest quality stainless steel, and are designed and fabricated using the latest technology and manufacturing processes.

With years of experience and expertise, expect a Sandborn seal to perform above the competition and deliver the most effective emission control, each and every time.

Perimeter Seals

Secondary Compression Plate

Optional Foam Dam

Vapour Barriers

Mechanical Shoe Seal

Perimeter Seals

Duo-Tip

Bubble Tip

Horizontal Wedge

Vertical 5" Wiper

Lightweight seal design meeting regulatory requirements. Best suited for finished products such as gasoline, sales oil, and others. PVC-Nitrile composition with dual contact points. Economical.

PVC-Nitrile composition designed to reduce adhesion issues. Proven in temperatures ranging from -35ºC through to 104ºC, the best seal tip available for long service life and regulatory compliance. Can be wrapped for additional adhesion resistance.

Available in multiple widths and adaptability to all shell configurations. Wrapped with protective urethane or optional reinforced Teflon for UV resistance, a great option to meet the needs of tanks with out of compliance shell conditions.

Seal tip with the highest degree of closing force. Fabricated from PVC-Nitrile, the Vertical 5" Wiper Tip offers excellent conformance to tank shells and a long service life. Can be wrapped with Teflon for additional adhesion resistance and an optional Teflon infused band.

Secondary Compression Plate

Leading with Innovation, Sealing with Precision

Each seal assembly is tested prior to shipment to ensure superior functionality. With years of experience and expertise, expect a Sandborn Secondary Seal to perform above the competition, delivering the most effective emission control every time.

Optional Foam Dam

Designed per API 650 and NFPA 11 requirements, a Sandborn Foam Dam is a critical component in tank fire protection systems. Available in both galvanized and stainless steel with multiple plate gauges available, expect a Sandborn Foam Dam to provide the protection and service life you need.

Vapour Barriers

Mechanical Shoe Seal

Expertise Delivers

Sandborn Seals: Innovative and Proven!

Sandborn Seal Assemblies provide the best emission control in the industry

Each Sandborn Seal Assembly is fully tested prior to shipment to site to ensure a properly functioning seal throughout the entire operating parameters of the tank. Each seal component is verified to ensure smooth operations, with closing forces recorded and provided for each seal assembly.

Our unique testing equipment has been engineered to simulate the conditions of actual floating roof operation, ensuring a Sandborn Seal Assembly will provide the best emission control possible.

Fully tested prior to shipment to site

Verified to ensure smooth operations

Engineered to simulate the conditions of actual floating roof operation

Guaranteed to provide the highest emission control possible

Book a Consultation

Take the first step towards reducing emissions and ensuring compliance of your tank systems.