Gasket Tape / Strip Gasket Technical Data and Selection Guide
What is gasket tape? – Stockwell Elastomerics pre-manufactures master logs (e.g. 36″ wide x 20′ long rolls) of adhesive backed open cell foams and closed cell sponges. These master logs are ready to be slit-to-width (to customer’s defined width), most materials offered can be slit from 1/4″ (6.4mm) up to 34″ (863mm) wide. This pre-manufacturing process allows for quick turns to meet short deadlines. The length of the gasket tape / strip gasket depends on the specific product (see charts below). Each product listed below offers a unique solution to gasketing and sealing requirements.
Request the Free Gasket Tape Touch Brochure – Request a free “touch” brochure with small samples of gasket tapes to touch and feel. The touch samples included are:
- 480S Gasket Tape
- Strip-N-Stick® 100S
- Strip-N-Stick® 200A
- HT-800 Gasket Tape
- Strip-N-Stick® 300AR
- 400FR (flame retardant) Gasket Tape
- Strip-N-Stick® 512
Gasket tape sample rolls are also available along with the tactile brochure.
Click here to Request a Free Gasket Tape Touch Brochure and a Sample Roll.
Free Whitepaper: Gasket Tape – Silicone Sponge and Silicone Foam for Long Term Sealing Performance (PDF for immediate dowload) – This gasket tape whitepaper discusses silicone product options that will last and perform for the entire anticipated life of the electrical equipment including those installed in outdoor conditions in the harshest environments.
Gasket Tape Selection Guide
Use the following table to select the foam or sponge gasket tape to investigate; click the foam/sponge name to jump directly to that gasket tape.
| Foam Gasket Tape | |
| Foam | Description |
| HT-800 | Medium Firmness, Closed Cell Silicone Foam with Acrylic Adhesive |
| HT-800 | Medium, Closed Cell Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support |
| HT-870 | Soft Firmness, Silicone Foam with Acrylic Adhesive |
| Strip-N-Stick 512 | Very Soft, Open Cell Silicone Foam with Acrylic Adhesive |
| BF-1000 | Extra Soft, Silicone Foam with Acrylic Adhesive |
| BF-1000 | Extra Soft, Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support |
| BF-2000 | Ultra Soft, Silicone Foam with LSE Acrylic Adhesive for Bonding to Powder Coat Surfaces |
| Sponge Gasket Tape | |
| Sponge | Description |
| Strip-N-Stick 200A | Medium Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive |
| R10470M | Medium, Closed Cell Silicone Sponge with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support |
| 480S | Soft Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive |
| Strip-N-Stick 100S | Medium Firmness, Closed Cell Silicone Sponge with Silicone Adhesive |
| 400FR | Flame Retardant, Medium Firmness, UL 94V-0, Closed Cell Silicone Sponge with Acrylic Adhesive |
| Strip-N-Stick 300AR | Reinforced, Closed Cell Silicone Sponge with Acrylic Adhesive |
Foam Gasket Tapes
| HT-800 Gasket Tape – Medium Firmness, Closed Cell Silicone Foam with Acrylic Adhesive | |||||||
| Modified closed cell silicone foam gasket tape. This silicone foam tape offers excellent long term rebound for critical sealing applications such as indoor or outdoor enclosure gaskets needing to meet NEMA and IP standards. HT-800 silicone foam is UL listed for flame (UL 94V-0) and for several gasket applications including UL 50 and UL 50E periodic recompression. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.032 | Gray | 20 | HT-800 Medium |
256M Film Supported Acrylic | -40°F to +200°F | Stock | – Silicone foam strip gasket – UL gasket tape – Water gasket – Dust gasket – UV resistant / outdoor gasket – HT-800 foam is listed for: UL 94V-0, UL 50, UL 50E, UL 508, UL 1570, UL 1572, UL 157 – Meets FAR 25.853 |
| 0.062 | Gray | 30 | Stock | ||||
| 0.093 | Black | 30 | Stock | ||||
| 0.125 | Black or Gray |
20 | Stock | ||||
| 0.188 | Gray | 20 | Stock | ||||
| 0.250 | Gray | 20 | Stock | ||||
| 0.375 | Gray | 10 | Stock | ||||
| 0.500 | Gray | 10 | Stock | ||||
| 0.125 | Gray | 20 | 3M 9675 Transfer Film Acrylic | -40°F to +300°F | Stock | ||
| 0.188 | Gray | 20 | Stock | ||||
| 0.250 | Gray | 20 | Stock | ||||
| 0.375 | Gray | 20 | Stock | ||||
| 0.500 | Gray | 10 | Stock | ||||
| HT-800 Gasket Tape – Medium, Closed Cell Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support | |||||||
| Modified closed cell silicone foam tape offers excellent long term memory. DP-1001 polyimide film supported silicone pressure sensitive adhesive (PSA) has optimum high temperature performance (good to 450°F) and a longer shelf life than most silicone adhesives. Film support prevents stretching. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Red | 15 | HT-800 Medium |
DP-1001 | -40°F to +450°F | *Made to Order | – Used to seal outdoor enclosures, lighting, and equipment subject to temperature extremes. – Silicone foam strip gasket – UV resistant / outdoor gasket – HT-800 foam is listed for: UL 94V-0, UL 50, UL 50E, UL 508, UL 1570, UL 1572, UL 157 – Meets FAR 25.853 |
| 0.250 | Red | 15 | *Made to Order | ||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
| HT-870 Gasket Tape – Soft Firmness, Silicone Foam with Acrylic Adhesive | |||||||
| Soft silicone foam gasket tape. This soft open cell silicone foam has a fine pitched cell structure making it good for dust seal and light water sealing. HT-870 has excellent rebound, is UV resistant, and is UL listed for several gasket applications. The softness of this strip gasket allows for good compression with lower clamping force. Testing for suitability in wet applications is recommended due to the open cells. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Black | 20 | HT-870 Soft Foam |
256M Acrylic Film Supported |
-40°F to +200°F | Stock | – Silicone foam strip gasket – UL gasket tape – Dust gasket – UV resistant / outdoor gasket – HT-870 foam is listed for: UL 94V-0, UL 50, UL 50E, UL 508, UL 1570, UL 1572, UL 157, UL 197 – Meets FAR 25.853 |
| 0.188 | 20 | Made to Order* | |||||
| 0.250 | 20 | Made to Order* | |||||
| 0.250 | Black | 20 | 3M 9675 | -40°F to +300°F | Stock | ||
| 0.375 | 20 | Stock | |||||
| 0.500 | 10 | Made to Order* | |||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
| Strip-N-Stick 512 Gasket Tape – Very Soft, Open Cell Silicone Foam with Acrylic Adhesive | |||||||
| Very soft silicone foam gasket tape. This very soft open cell silicone foam is good for dust seals, and cushioning, light water mist sealing. SNS 512 has excellent rebound and is UV resistant. The softness of this strip gasket allows for good compression with low clamping force. Testing for suitability in wet applications is recommended due to the open cells. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Gray | 30 | F-12 Very Soft |
Supported Acrylic | -40°F to +300°F | Stock | – Soft strip gasket – Silicone foam gasket tape – Supported acrylic adhesive – Dust gasket – Cushioning tape – F-12 foam is listed for: UL 94V-0 – Meets FAR 25.853 |
| 0.250 | 15 | Stock | |||||
| BF-1000 Gasket Tape – Extra Soft, Silicone Foam with Acrylic Adhesive | |||||||
| Great for gaskets and applications requiring a very soft, flame retardant, gap filling gasket material. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.062 | White | 20 | BF-1000 Extra Soft |
256M Acrylic Film Supported |
-55°F to +200°F | Stock | – UV resistant – Often used as cushioning tape, air plenum gaskets, or dust gaskets – UL 94V-0 and UL 94HF-1 rated – Meets BMS 1-68 |
| 0.125 | 20 | Stock | |||||
| 0.188 | 20 | Stock | |||||
| 0.250 | 20 | Stock | |||||
| 0.375 | 10 | *Made to Order | |||||
| 0.500 | 10 | *Made to Order | |||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
| BF-1000 Gasket Tape – Extra Soft, Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support | |||||||
| Excellent memory and low stress relaxation makes this easily deflected cellular silicone a good choice for air plenum gaskets and cushioning tape. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.188 | White | 15 | BF-1000 Extra Soft |
DP-1001 Film Supported High Temp | -40°F to +450°F | *Made to Order | – UV resistant – Gaskets and applications requiring a very soft, flame retardant, gap filling gasket material. – Adhesive backing is good to 450°F – Often used as dust gaskets – UL 94V-0 and UL 94HF-1 rated – Meets BMS 1-68 |
| 0.250 | 10 | *Made to Order | |||||
| 0.375 | 10 | *Made to Order | |||||
| 0.500 | 10 | *Made to Order | |||||
| 0.625 | 10 | *Made to Order | |||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
| BF-2000 Gasket Tape – Ultra Soft, Silicone Foam with LSE Acrylic Adhesive for Bonding to Powder Coat Surfaces | |||||||
| Softest silicone foam available, open cell structure, for filling gaps in enclosures where 70% and greater deflection may be needed. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Foam | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Black | 30 | BF-2000 Ultra Soft |
3M 9490LE Acrylic Film Supported |
-55°F to +225°F | *Made to Order | – UV resistant – Often used as cushioning tape, air plenum gaskets, or dust gaskets – UL 94V-0 and UL 94HF-1 rated – Meets BMS 1-68 |
| 0.250 | 20 | *Made to Order | |||||
| 0.375 | 10 | *Made to Order | |||||
| 0.500 | 10 | *Made to Order | |||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
Sponge Gasket Tapes
| Strip-N-Stick 200A Gasket Tape – Medium Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive | |||||||
| Closed cell silicone sponge gasket tape. This silicone sponge is Saint-Gobain’s medium firmness R10470M with an unsupported (transfer) acrylic pressure sensitive adhesive (PSA). SNS 200A gasket tape is good for water sealing and dust sealing (e.g. NEMA and IP), where the operating temperatures are not extreme. This long life silicone sponge gasket tape has excellent long term rebound and is UV resistant. The strong acrylic adhesive backing is well suited for bonding to high, medium and some low surface energy substrates. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.062 | Orange / Tan | 30 | R10470M Medium |
Acrylic Transfer | -20°F to +300°F | Stock | – Silicone sponge strip gasket – Silicone sponge gasket tape – Unsupported acrylic adhesive – Water gasket – Dust gasket – UV resistant / outdoor gasket – Long service life |
| 0.093 | Stock | ||||||
| 0.125 | Stock | ||||||
| 0.188 | 15 | Stock | |||||
| 0.250 | Stock | ||||||
| R10470M Gasket Tape – Medium, Closed Cell Silicone Sponge with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support | |||||||
| R10470M sponge with DP-1001 film supported high temp adhesive. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Orange | 15 | R10470M Medium |
DP-1001 | -40°F to +450°F | *Made to Order | – Closed cell silicone sponge tape has excellent long term rebound – UV resistant – DP-1001 film supported silicone adhesive has a longer shelf life than most silicone adhesives – Film support prevents stretching, good to 450°F. |
| 0.250 | *Made to Order | ||||||
| *Made to Order Foam, Sponge and Adhesive Combinations are generally available in 2 weeks. 34” minimum usage applies. | |||||||
| 480S Gasket Tape – Soft Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive | |||||||
| Soft closed cell silicone sponge gasket tape uses a UL 50E rated silicone with a strong acrylic adhesive backing. Stockwell Elastomerics’ 480S Gasket Tape is made from Saint-Gobain’s soft, low compression set R10480S, making it easy to compress while limiting door or housing flex. 480S gasket tape is good for water sealing and dust sealing (e.g. NEMA, IP6X and UL 50E); common applications include NEMA enclosure gasket, digital signage gaskets, and electric sign gaskets. This long life, silicone sponge gasket tape has excellent long term rebound and is UV resistant. The strong acrylic adhesive backing is well suited for bonding to high, medium and some low surface energy substrates. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.125 | Black | 30 | R10480S Soft |
Acrylic Transfer | -40°F to +300°F | Stock | – Soft, requires low clamp force – Closed cell – no wicking through material – Low compression set – rebounds very well – UL 50E silicone sponge – UL 746C adhesive – UV and ozone resistant – Long service life |
| 0.125 | Red | Stock | |||||
| 0.188 | Red | 15 | Stock | ||||
| 0.250 | Black | Stock | |||||
| 0.250 | Red | Stock | |||||
| Strip-N-Stick 100S Gasket Tape – Medium Firmness, Closed Cell Silicone Sponge with Silicone Adhesive | |||||||
| Closed cell silicone sponge gasket tape. The base silicone sponge is Saint-Gobain’s medium firmness R10470M with an unsupported (transfer) silicone pressure sensitive adhesive (PSA). SNS 100S gasket tape is good for water seals and dust seals (e.g. NEMA and IP), especially where there are wide operating temperatures. This silicone sponge gasket tape has excellent rebound, is UL listed for gasketing in lighting fixtures, and UV resistant. The Low/Medium strength adhesive backing is well suited for extreme temperatures. Silicone sponge is tougher than silicone foam. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.062 | Orange / Tan | 30 | R10470M Medium |
Silicone Transfer | -100°F to +500°F | Stock | – Silicone sponge strip gasket – High temp gasket tape – Low temp gasket tape – Unsupported silicone adhesive – Water gasket – Dust gasket – UL rated for lighting fixtures – UV resistant / outdoor gasket – Long Service Life |
| 0.093 | Stock | ||||||
| 0.125 | Stock | ||||||
| 0.188 | 15 | Stock | |||||
| 400FR Gasket Tape – Flame Retardant, Medium Firmness, UL 94V-0, Closed Cell Silicone Sponge with Acrylic Adhesive | |||||||
| Medium firmness, R10400M flame retardant silicone sponge with an unsupported (transfer) acrylic pressure sensitive adhesive. 400FR gasket tape is good for water sealing and dust sealing (e.g. NEMA and IP) in rugged environments. This long life silicone sponge gasket tape has excellent long term rebound, is UV resistant and UL 94V-0 listed. The strong acrylic adhesive backing is well suited for bonding to high, medium and some low surface energy substrates. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.062 | Blue/Gray | 30 | R10400M Medium |
3M 9485PC Acrylic Transfer | -20°F to +300°F | Stock | – Flame retardant silicone sponge gasket gape – Unsupported acrylic adhesive – High adhesion – Water gasket and dust gasket – UV resistant / outdoor gasket – Sponge is UL 94V-0 listed – Dielectric strength (200 V/mil) – Long service life |
| 0.093 | 15 | Stock | |||||
| 0.125 | 30 | Stock | |||||
| 0.250 | 15 | Stock | |||||
| Strip-N-Stick 300AR Gasket Tape – Reinforced, Closed Cell Silicone Sponge with Acrylic Adhesive | |||||||
| Reinforced closed cell silicone sponge gasket tape. This unique medium firmness silicone sponge is made with an embedded fiberglass reinforcement which offers exceptional X & Y axis stability (no stretching during install). SNS 300AR has an unsupported (transfer) acrylic pressure sensitive adhesive (PSA) backing. This gasket tape is good for applications where dimensional stability and higher tensile strength are required. Uses include water seals and dust seals, where the operating temperatures are not extreme. This long life silicone sponge gasket tape has excellent long term rebound and is UV resistant. The strong adhesive backing is well suited for bonding to high, medium and some low surface energy substrates. | |||||||
| Available Thickness (inches) |
Color | Roll Length (linear feet) |
Sponge | Adhesive Type | Adhesive Temp Range |
Availability | Benefits/Uses |
| 0.062 | Blue / Gray | 30 | R10450M Reinforced Medium |
Acrylic Transfer | -20°F to +300°F | Stock | – Reinforced strip gasket – Reinforced gasket tape – Unsupported acrylic adhesive – Water gasket – Dust gasket – UV resistant / outdoor gasket – Exceptional X & Y stability |
| 0.125 | Stock | ||||||
What are the different adhesives? – Silicone based adhesives are most commonly specified when a gasketing application needs to meet a wide temperature range. Acrylic based adhesives have a tighter operating temperature range than silicone, they are available in a variety of bonding strengths and cost less than silicone adhesives. A supported (or double coated) structure indicates a thin layer of PET is embedded in the adhesive which gives the gasket tape some X and Y axis dimensional stability. An unsupported adhesive, also called a transfer adhesive, is a thin, “stretchy” adhesive backing offering no X or Y axis stability.
Need custom gasket tape? – Stockwell Elastomerics also manufactures custom gasket tape. Choose one of the silicone foams or silicone sponges and combine with a stock adhesive to develop a custom combination that meets a unique design requirement. Note: custom gasket tape requires a minimum order. Small sample or test swatches are available for test bonding.
Contact Stockwell Elastomerics for Gasket Tape and Gasket Strips
Contact Us for further assistance with gasket tape and strip gaskets.
Strip-N-Stick® is a registered trademark of Saint-Gobain.