Page 1 of 1
Scotch-Seal™ 2229
Mastic Tape
Data Sheet
_________________________________________________________________________________
_________________________________________________________________________________________
3M UK PLC 3M Ireland 3M UK PLC
Electrical Products Sales Office Sales Office
3M House, PO Box 1 3M House, Adelphi Centre PO Box 393
Bracknell, Berkshire RG12 1JU Dun Laoghaire, Co Dublin, Ireland Bedford MK41 0YE
Telephone: 01344 858616 Telephone: 353 1 280 3555 Telephone: 01234 229462
Fax: 01344 858758 Fax: 353 1 280 3509 Fax: 01234 229433
Product Description
Scotch-Seal 2229 Mastic Tape is a conformable,
durable, tacky mastic coated on an easy release liner.
The product is designed for quick and easy insulating,
padding and sealing of objects that need to be protected
from adverse environmental conditions. It is well suited
for corrosion protection applications and is resistant to
U.V. light.
Product Features
Excellent adhesion and sealing characteristics to
metals, rubbers, synthetic cable insulations and
jackets.
Wide temperature stability while maintaining its
sealing properties.
Conformable and mouldable for easy applications
over irregular surfaces.
Does not crack when subjected to repeated flexing.
Fully compatible with most semi-con jacketing
materials*.
Material exhibits excellent self-healing
characteristics after being punctured or cut.
Excellent chemical and UV resistance.
Exhibits very low cold-flow.
Retains its flexibility at low temperatures resulting
in ease of application and continuous performance
at reduced temperatures.
*Note: Since a large number of different semi-
conductive jacketing materials are currently available,
the user is urged to test the compatibility of Scotch-
Seal
with the semi-conductive jacketing material
being used.
Applications
For sealing high voltage cable splice and
termination accessories.
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 protection to a wide variety
of electrical connections and applications.
For sealing ducts and cable end seals.
For sealing against dust, soil, water and other
environmental conditions.
Data – Typical Properties
Physical Properties
Test Method Typical Value*
Colour Black
Thickness ASTM-D1000 3.2mm
Water Absorption 3M TM283 0.07%
Temperature Range
Continuous -34°C - 71°C
(-30°F - 160°F)
Intermittent 93°C (200°F)
Application Temperature -18°C - 65°C
(0°F - 150°F)
Electrical Properties
Test Method Typical Value*
Dielectric Strength ASTM-1000
Wet 15kV/mm
Dry 15kV/mm
Dielectric Constant ASTM D150
23°C (73°F) 60 Hz 3.26
Dissipation Factor ASTM D150 0.80%
*This data is not to be used for specification. Values
listed are for typical properties and should not be
considered minimum or maximum.
Product Handling
The appropriate length of Scotch-Seal Mastic Tape can
easily be cut on the roll by using a sharp knife or
suitably protected razor blade. It can be applied in
layers or can easily be moulded into the desired shape.
Shelf Life
When maintained under normal storage conditions,
Scotch-Seal 2229 will remain stable and has a five year
shelf-life.
Important Notice
Technical information provided by 3M is based on experience and/or tests believed to be
reliable, but their accuracy is not guaranteed and the results may not be relevant to every user’s
application. For this reason 3M does not accept responsibility or liability, direct or
consequential, arising from reliance upon any information provided and the user should
determine the suitability of the products for their intended use. Nothing in this statement will
be deemed to exclude or restrict 3M’s liability for death or personal injury arising from its
negligence. All questions of liability relating to 3M products are governed by the seller’s
terms of sale subject where applicable to the prevailing law. If any goods supplied or
processed by or on behalf of 3M prove on inspection to be defective in material or
workmanship, 3M will (at its option) replace the same or refund to the Buyer the price paid for
the goods or services. Except as set our above, all warranties and conditions, whether express
or implied, statutory or otherwise are excluded to the fullest extent permissible at law. 3M and
Scotch-Seal are trademarks of the 3M Company. Printed in the UK. © 3M United Kingdom
PLC, 2003.
