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.

View/Download Gasket Tape Overview Sheet


SE202 Gasket Tape Flier



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.

SE202 Gasket Tape Flier



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.

Get Gasket Tape Whitepaper PDF Now – Immediate Download

Gasket Tape Whitepaper Cover


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
FoamDescription
HT-800Medium Firmness, Closed Cell Silicone Foam with Acrylic Adhesive
HT-800Medium, Closed Cell Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support
HT-870Soft Firmness, Silicone Foam with Acrylic Adhesive
Strip-N-Stick 512Very Soft, Open Cell Silicone Foam with Acrylic Adhesive
BF-1000Extra Soft, Silicone Foam with Acrylic Adhesive
BF-1000Extra Soft, Silicone Foam with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support
BF-2000Ultra Soft, Silicone Foam with LSE Acrylic Adhesive for Bonding to Powder Coat Surfaces


Sponge Gasket Tape
SpongeDescription
Strip-N-Stick 200AMedium Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive
R10470MMedium, Closed Cell Silicone Sponge with DP-1001 High Temp Silicone Adhesive with Polyimide Film Support
480SSoft Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive
Strip-N-Stick 100SMedium Firmness, Closed Cell Silicone Sponge with Silicone Adhesive
400FRFlame Retardant, Medium Firmness, UL 94V-0, Closed Cell Silicone Sponge with Acrylic Adhesive
Strip-N-Stick 300ARReinforced, 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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.032Gray20HT-800
Medium
256M Film Supported Acrylic-40°F to +200°FStock– 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
0.062Gray30Stock
0.093Black30Stock
0.125Black
or Gray
20Stock
0.188Gray20Stock
0.250Gray20Stock
0.375Gray10Stock
0.500Gray10Stock
0.125Gray203M 9675 Transfer Film Acrylic-40°F to +300°FStock
0.188Gray20Stock
0.250Gray20Stock
0.375Gray20Stock
0.500Gray10Stock

 

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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Red15HT-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
0.250Red15*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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Black20HT-870
Soft Foam
256M Acrylic
Film Supported
-40°F to +200°FStock– 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
0.18820Made to Order*
0.25020Made to Order*
0.250Black203M 9675-40°F to +300°FStock
0.37520Stock
0.50010Made 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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Gray30F-12
Very Soft
Supported Acrylic-40°F to +300°FStock– 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
0.25015Stock

 

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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.062White20BF-1000
Extra Soft
256M Acrylic
Film Supported
-55°F to +200°FStock– 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
0.12520Stock
0.18820Stock
0.25020Stock
0.37510*Made to Order
0.50010*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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.188White15BF-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
0.25010*Made to Order
0.37510*Made to Order
0.50010*Made to Order
0.62510*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)
ColorRoll Length
(linear feet)
FoamAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Black30BF-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
0.25020*Made to Order
0.37510*Made to Order
0.50010*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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.062Orange / Tan30R10470M
Medium
Acrylic Transfer-20°F to +300°FStock– Silicone sponge strip gasket
– Silicone sponge gasket tape
– Unsupported acrylic adhesive
– Water gasket
– Dust gasket
– UV resistant / outdoor gasket
– Long service life
0.093Stock
0.125Stock
0.18815Stock
0.250Stock

 

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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Orange15R10470M
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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.125Black30R10480S
Soft
Acrylic Transfer-40°F to +300°FStock– 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
0.125RedStock
0.188Red15Stock
0.250BlackStock
0.250RedStock

 

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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.062Orange / Tan30R10470M
Medium
Silicone Transfer-100°F to +500°FStock– 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
0.093Stock
0.125Stock
0.18815Stock

 

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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.062Blue/Gray30R10400M
Medium
3M 9485PC Acrylic Transfer-20°F to +300°FStock– 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
0.09315Stock
0.12530Stock
0.25015Stock

 

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)
ColorRoll Length
(linear feet)
SpongeAdhesive TypeAdhesive
Temp Range
AvailabilityBenefits/Uses
0.062Blue / Gray30R10450M
Reinforced Medium
Acrylic Transfer-20°F to +300°FStock– Reinforced strip gasket
– Reinforced gasket tape
– Unsupported acrylic adhesive
– Water gasket
– Dust gasket
– UV resistant / outdoor gasket
– Exceptional X & Y stability
0.125Stock

 


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.