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3M™ Scotch-Seal™ Mastic Tape
and Pads 2229
Product
Description
3M™ Scotch-Seal™ Mastic Tape and Pads 2229 are conformable, durable, tacky
mastic coated on an easy release liner. The product is designed for quick and easy
insulating, padding and sealing of obje c ts that need to be protected from adverse
environmental conditions. It is well suited for corrosion protection a pplicants and is
resistant to U.V. radiation.
Data Sheet May 2013
Agency Approvals
& Self
Certifications
RoHS
2011/65/EU
"RoHS 2011/65/EU" means that the product or part does not contain any of the
substances in excess of the maximum concentration values (“MCVs”) in EU RoHS
Directive 2011/65/EU. The MCVs are by weight in homogeneous material s. This
information represents 3M's knowledge and belief, which may be based in whole or in
part on information provided by third party suppliers to 3M.
Product Features
Excellent adhesion and sealing characteristics to metals, rubbers, synthetic cable
insulations and jackets.
Stable over wide temperature range while maintaining its sealing properties.
Conformable and moldable for easy applications over irregular surfaces.
Does not crack when subjected to repeated flexing.
Fully compatible with most semi-con jacketing materials.
Material exhibits self-healing characteristics after being pun ctured or cut.
Chemical resistance.
Exhibits very low cold-flow.
Retains its flexibility at low temperatures resulting in e ase of application and
continuous performance at reduced temperatures.
Applications
For sealing high-voltage cable splice and termination accessories for
90º C continuous operating temperature.
For insulating electrical connections rated up to 1000 volts if over
wrapped with vinyl or rubber electrical tape.
For padding irregular-shaped connections.
For providing corrosion prot ection to a wide variety of electrical
connections and applicat ions.
For sealing ducts and cable end seals.
For sealing against dust, soil, water and other environmental co nditions
3M™ Scotch-Seal™ Mastic Tape and Pads 2229
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3M and Scotch-Seal are trademarks of 3M Company.
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Product Handling
The appropriate length of 3M™ Scot ch-Seal™ Mastic Tape 2229 can easily be cut off the
roll by using a sharp knife or suitable protected razor blade. It can be applied in layers or
can easily be molded into the de sired shape.
Note: Since a large number of different semi-conductive jacketing materials are curre ntly
available, the user is urged to test the compatibility of 2229 mastic tape with the semi-
conductive jacketing material being used.
Typical Proper t ies Properties Typical Value
Color Black
Thickness 1 125 mil (3,18mm)
Water Absorption 3 0.07%
Application Temperature 0ºC to 38ºC, 32ºF to 100ºF
Dielectric Strength 1 (Wet or Dry) 379 V/mil (14,9kV/mm)
Dielectric Constant 2
73ºF(23ºC) 60Hz
3.26
Dissipation Factor 2 0.80%
* Foot notes: 1. ASTM-D-1000 Test method
2. ASTM-D-150 Test method.
3. 3M™ Test method 282
Shelf-Life
This product has a 5-year shelf life from date of manufacture when stored in a humidity
controlled storage (10°C / 50°F to 27°C / 80 °F and <75% relative humidity).
Availability
The 2229 mastic tape is available in the followin g sizes from your local authori zed 3M
distributor:
3 ¾” x 10’ (95,3 mm x 3 m) Roll
1” x 10’ (25,4 mm x 3 m) Roll
2 ½” x 3 ¾” (63,5 mm x 95,3 mm) Pad
3 ¾” x 3 ¾” (95,3 mm x 95,3 mm) Pad
6 ½” x 3 ¾” (165,1 mm x 95,3 mm) Pad
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed t o be
reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is
suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the
product, which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order, shall
have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited
Remedy; Limited
Liability
This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES NO OTHER WARRANTIES
INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to
replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be
liable for any indirect, special, i ncidental or consequential loss or damage arising from this 3M product, regardless of the
legal theory asserted.
Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800.245.3573
FAX: 800.245.0329
www.3M.com/electrical
Please recycle
© 3M 2013 All rights reserved
78-8126-9091- 1 Rev B
