3M™ Scotch-Seal™ Mastic Tape Compound 2229
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3M™ Scotch Seal™ Tape 2229 is a highly conformable, tacky mastic tape designed to deliver excellent adhesion over irregular surfaces while maintaining stability across a wide temperature range. This tape offers self-healing characteristics after cuts or punctures, and includes an easy-release liner for efficient installation in both indoor and outdoor environments.
Features at a Glance
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Premium Electrical and Mechanical ProtectionThick mastic construction helps provide a durable insulating and padding layer for a variety of applications.
- Suitable for electrical connections rated up to 1,000 V when overwrapped with vinyl or rubber tape
- 125 mil thickness helps support fast build-up and cushioning
- May help provide corrosion protection for cable end seals and exposed electrical components
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Durable All-Weather, Moisture-Sealing PerformanceFormulated for long-lasting environmental sealing in exposed conditions.
- Designed to help provide excellent moisture resistance
- UV resistant for outdoor use
- Maintains stability and adhesion across a broad temperature range up to 194°F (90°C)
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Strong Adhesion and ConformabilityTacky mastic layer helps create a tight seal around complex shapes and contours.
- Adheres well to metals, rubbers, synthetic cable insulations, and jackets
- Self-healing properties help maintain seal integrity after cuts or punctures
- Easy-release liner supports efficient installation
Applications
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Moisture Sealing for Electrical ConnectionsTape 2229 is designed to help provide superior moisture sealing for electrical splices, connectors, and terminations—particularly in outdoor or weather-exposed environments.
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Padding and Environmental ProtectionThe thick, conformable mastic may be used as a cushioning layer over sharp edges, irregular fittings, and mechanical stress points, helping to protect components from environmental exposure.
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Corrosion Protection for Cables and ComponentsIts adhesive and rubber-backed construction helps offer corrosion protection for cable end seals, duct seals, and exposed electrical hardware.
Details
Highlights
- Tacky mastic adhesive provides excellent adherence over irregular surfaces
- For insulating electrical connections rated up to 1000 volts if over wrapped with vinyl or rubber electrical tape
- Also used for sealing high-voltage cable splice and termination accessories for 90º C continuous operating temperature
- Easy release liner
- Withstands temperatures up to 194 °F (90 °C)
- RoHS 2011/65/EU Compliant
- RoHS 2011/65/EU Compliant
3M™ Scotch Seal™ Tape 2229 is a 125 mil thick, highly conformable, tacky mastic pad on an easy release liner that's suitable for insulating, padding and sealing of objects that need to be protected from adverse environmental conditions. It withstands temperatures up to 194 °F (90 °C).
3M™ Scotch Seal™ Tape 2229 is a UV resistant pad that features a rubber backing and has good self healing properties after being cut or punctured. The tacky mastic adhesive of the pad adheres over irregular surfaces to provide excellent moisture resistance. It maintains its stability over a wide temperature range and offers good adhesion to metals, rubbers, synthetic cable insulations and jackets. It also provides corrosion protection to a variety of electrical connections, sealing ducts and cable end seals. RoHS 2011/65/EU Compliant.
What Makes 3M™ Scotch Seal™ Tape 2229 Different?
A thick, tacky mastic engineered for demanding sealing and padding applications
Rubber-Backed Mastic
Highly conformable and tacky to help ensure strong surface adhesion
Self-Healing Properties
Mastic flows to restore sealing performance after minor cuts or punctures
Environmental Durability
Formulated to help resist UV, moisture, and temperature extremes
Typical properties
Resources
Similar products
Current product  3M™ Scotch-Seal™ Mastic Tape Compound 2229 | |||
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| Overall Width (Metric) | 25.4 mm, 38.1 mm, 63.5 mm, 95 mm, 95.3 mm | ||
| Total Tape Thickness without Liner (Metric) | 3.18 mm | ||
| Overall Width (Imperial) | 1 in, 1.5 in, 2.5 in, 3.75 in | ||
| Total Tape Thickness without Liner (Imperial) | 125 mil | ||
| Product Color | Black | ||
| Adhesive Type | Mastic |
Scotch® Vinyl Mastic Roll 2210, 4 in x 10 ft, Black, 1 roll/carton, 10 rolls/Case
3M™ Butyl Mastic Tape 2212Legal disclaimer
The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.
For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
