3M Scotch-Seal Mastic Tape Compound 2229 - 7000043008, 7000006032

Product overview

3M 2229 (7000043008, 7000006032) is a premium-grade, highly conformable Mastic Tape Compound. It’s engineered for long-lasting insulation, padding and moisture sealing in harsh environments. This thick, self-healing 3M 2229 Tape features a UV-resistant rubber backing and aggressive mastic adhesive for excellent adhesion to metals, rubber and synthetic cable jackets. Suitable for both indoor and outdoor use, Scotch 2229 ensures reliable environmental protection across a wide temperature range.
Part Numbers: 7000043008, 7000006032.

3M Scotch-Seal Mastic Tape Compound 2229

Designed to provide outstanding moisture resistance and electrical insulation, 3M 2229 Mastic Tape conforms effortlessly over irregular shapes and surfaces. With its easy-release liner and putty-like texture, this 3M Scotch-Seal 2229 compound is quick to apply by hand, speeding up fieldwork and offering consistent sealing performance. Whether you’re insulating electrical connections, protecting cable splices or sealing conduit ends, 3M 2229 delivers long-term protection. Even after being punctured or cut, thanks to its self-healing characteristics.

Key Features & Benefits

  • Excellent sealing and adhesion on metal, rubber and synthetic cable jackets
  • Conforms easily to irregular surfaces and shapes
  • Self-healing material maintains seal integrity after puncture or flexing
  • Withstands continuous temperatures up to 90°C (100°F)
  • UV-resistant backing for long-term outdoor performance
  • Suitable for insulating connections up to 1000 V when overwrapped with vinyl or rubber tape
  • Easy release liner for efficient, tool-free application
  • RoHS 2011/65/EU compliant
  • Available widths: 25 mm (1 in) and 95 mm (3.75 in), 3 m (10 ft) roll
  • Supplied in individual rolls for on-site convenience

3M Scotch 2229 – Long-Lasting for Harsh Conditions

From sealing cable end caps to protecting high-voltage splice kits, 3M 2229 Tape is trusted across general electrical industry applications. Its superior tack and thick mastic construction simplify tough sealing jobs, while its durability ensures the long-term reliability of your critical electrical connections.

When flexibility, speed and performance matter most, 3M Scotch-Seal 2229 offers the dependable solution professionals rely on in the field.


For Additional Information on 3M Scotch-Seal Mastic Tape Compound 2229 (7000043008, 7000006032), please consult the Technical Data Table or PDF File below.

*Technical Data subject to change without notice.

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Technical Data

TYPICAL PROPERTIES

Adhesive Type Application Method Application Temp To (℃) Backing (Carrier) Thickness (Metric) Backing Thickness (Imperial) Brands Industries Max Operating Temp (℃) Max Operating Temp (℉) Product Colour Product Form
Mastic Apply by Hand 38℃ 3.18 mm 125 mil Scotch-Seal™ General Industry, Electrical 90℃ 100℉ Black Tape

TYPICAL PROPERTIES - CONTINUED

Product Type Shelf Life Shelf Life in Months (From Date of Manufacture) Smallest Saleable Unit Tape Colour (Initial) Tape Grade Tape Thickness (Imperial) Tape Width Total Tape Thickness without Liner (Imperial) Total Tape Thickness without Liner (Metric) UV Resistant
Mastic Tape 5 Year 60 Each Black Professional, Premium 3.18 mm 25 mm, 95 mm 125 mil 3.18 mm Yes

TYPICAL PROPERTIES - CONTINUED

Water Absorption 3M™ Test Method 282 Dielectric Strength (Wet or Dry) ASTM D1000 Dielectric Constant 2 73ºF (23ºC) 60Hz ASTM D150 Dissipation Factor ASTM D150
0.07% 379 V/mil (14,9kV/mm) 3.26 0.80%

DIMENSIONS AND CLASSIFICATIONS

Overall Length (ft) Overall Length (m) Overall Thickness (mil) Overall Thickness (mm) Overall Width (in) Overall Width (mm)
10 3 125 3.18 1 in, 3.75 in 25.4, 95.3

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