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Home > Datasheets > Gasket Tape and Strip Gaskets Technical Data

Gasket Tape / Strip Gasket Technical Data

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
Click here to Request a Free Gasket Tape Touch Brochure.
SE202 Gasket Tape Flier


480S - Soft Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive

480S - 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Benefits
480S 0.125"
(3.18mm)
30 ft (9.14m) Black R10480S Soft Acrylic Transfer -40°F
to
+300°F
480S
- 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 life
480S 0.125"
(3.18mm)
30 ft (9.14m) Red
480S 0.188"
(4.88mm)
15 ft (4.57m) Red
480S 0.250"
(6.35mm)
15 ft (4.57m) Black
480S 0.250"
(6.35mm)
15 ft (4.57m) Red

Strip-N-Stick 100S - Medium Firmness, Closed Cell Silicone Sponge with Silicone Adhesive

SNS 100S - 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 & 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
SNS 100S 0.062"
(1.57mm)
30 ft (9.14m) Orange
/ Tan
R10470M Medium Silicone Transfer -100°F
to
+500°F
Strip-N-Stick 100S
- Silicone Sponge Strip Gasket
- High Temp Gasket Tape
- Low Temp Gasket Tape
- Unsupported Silicone Adhesive
- Water Gasket
- Dust Gasket
- UV Resistant / Outdoor Gasket
- Long Service Life
- UL Rated for Lighting Fixtures
SNS 100S 0.093"
(2.36mm)
30 ft (9.14m)
SNS 100S 0.125"
(3.18mm)
30 ft (9.14m)
SNS 100S 0.188"
(4.78mm)
15 ft (4.57m)

Strip-N-Stick 200A - Medium Firmness, Closed Cell Silicone Sponge with Acrylic Adhesive

SNS 200A - Closed cell silicone sponge gasket tape. Similar to SNS 100S, the silicone sponge is Saint Gobain's medium firmness R10470M but with an unsupported (transfer) acrylic pressure sensitive adhesive (PSA). SNS 200A gasket tape is good for water sealing and dust sealing (e.g. NEMA & 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
SNS 200A 0.062"
(1.57mm)
30 ft (9.14m) Orange
/ Tan
R10470M Medium Acrylic Transfer -20°F to +300°F Strip-N-Stick 200A
- Silicone Sponge Strip Gasket
- Silicone Sponge Gasket Tape
- Unsupported Acrylic Adhesive
- Water Gasket
- Dust Gasket
- UV Resistant / Outdoor Gasket
- Long Service Life
SNS 200A 0.093"
(2.36mm)
SNS 200A 0.125"
(3.18mm)
SNS 200A 0.188"
(4.78mm)
15 ft (4.57m)
SNS 200A 0.250"
(6.35mm)

HT-800 Gasket Tape - Medium Firmness, Modified Closed Cell Silicone Foam with Acrylic Adhesive

HT-800 Gasket Tape - 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
HT-800 Gasket Tape 0.032"
(0.79mm)
20 ft (6.10m) Grey HT-800 Medium Supported Acrylic -40°F to +300°F HT-800 Gasket Tape
- Silicone Foam Strip Gasket
- UL Gasket Tape
- Supported Acrylic Adhesive
- 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
HT-800 Gasket Tape 0.062"
(1.57mm)
30 ft (9.14m) Grey
HT-800 Gasket Tape 0.125"
(3.18mm)
20 ft (6.10m) Black
or Grey
HT-800 Gasket Tape 0.188"
(4.78mm)
20 ft (6.10m) Grey
HT-800 Gasket Tape 0.250"
(6.35mm)
20 ft (6.10m) Grey
HT-800 Gasket Tape 0.375"
(9.53mm)
10 ft (3.05m) Grey
HT-800 Gasket Tape 0.500"
(12.7mm)
10 ft (3.05m) Grey

HT-870 Gasket Tape - Soft, Open Cell Silicone Foam with Acrylic Adhesive

HT-870 Gasket Tape - 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
HT-870 Gasket Tape 0.062"
(1.57mm)
10 ft (3.05m) Black HT-870 Soft Acrylic Transfer -40°F to +300°F HT-870 Gasket Tape
- Silicone Foam Strip Gasket
- UL Gasket Tape
- Unsupported Acrylic Adhesive
- 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

400FR Gasket Tape - Medium Firmness, UL 94V-0, Closed Cell Silicone Sponge with Acrylic Adhesive

400FR Gasket Tape - 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 & 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.
Product Thickness Firmness Sponge Cell Structure Adhesive Uses
400FR
Gasket Tape
0.062 - 0.250”
(1.57 - 6.35mm)
Medium R10400 M Closed Cell Acrylic Transfer

-20 - 300°F
(-29 - 149°C)

Adhesion: High
- Silicone Sponge Gasket Tape
- Unsupported Acrylic Adhesive
- Water Gasket and Dust Gasket
- UV Resistant / Outdoor Gasket
- Sponge is UL 94V-0 listed
- 21 CFR 177.2600 (food contact)
- Dielectric Strength (200 V/mil)
- Long Service Life
- Color: Blue/Gray

Strip-N-Stick 300AR - Reinforced, Closed Cell Silicone Sponge with Acrylic Adhesive

SNS 300AR - 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
SNS 300AR 0.062"
(1.57mm)
30 ft (9.14m) Blue
/ Grey
R10450M Reinforced Medium Acrylic Transfer -20°F to +300°F Strip-N-Stick 300AR
- Reinforced Strip Gasket
- Reinforced Gasket Tape
- Unsupported Acrylic Adhesive
- Water Gasket
- Dust Gasket
- UV Resistant / Outdoor Gasket
- Exceptional X & Y Stability
SNS 300AR 0.125"
(3.18mm)

Strip-N-Stick 512 - Very Soft, Open Cell Silicone Foam with Acrylic Adhesive

SNS 512 - 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.
Product Thickness Length Color Foam / Sponge Adhesive Type Adhesive Temp Range Uses
SNS 512 0.125"
(3.18mm)
30 ft (9.14m) Grey F-12
Very Soft
Supported Acrylic -40°F to +300°F Strip-N-Stick 512 LT
- 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
SNS 512 0.250"
(3.18mm)
15 ft (4.57m)

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.

Custom gasket tape? - Stockwell 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.


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