Scotch® Rubber Mastic Tape 2228

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Installation

Scotch® Rubber Mastic Tape 2228 should be applied in half–lapped layers until

desired insulation build up is reached. Stretch the tape to 3/4 of its original width

during application for good conformability and to obtain a moisture tight seal.

Scotch® Rubber Mastic Tape 2228 should be overwrapped for mechanical

protection with two half–lapped layers of Scotch® Super 33+™ Vinyl Electrical Tape.

Typical Properties

Properties

Typical Value

266ºF (130ºC)

Color

Black

65 mil (1,65mm)

Steel 15.0lb/in (26,2N/10mm)

PE 10.0lb/in (17,5N/10mm)

Pass (Type I)

1000%

500V/mil (19,7kV/mm)

3.5

1.0%

0.15%

Pass

Pass, 130ºC

Pass

Note: These are typical values and should not be used for specification purposes.

* Foot notes: 1. ASTM-D-4325 Test method

2. ASTM-D-3833 Test method

3. ASTM-570 Test method

4. ASTM-D-4388 Test method

5. ASTM-D-1000 Test method

6. UL recognized component, Product Category OANZ2, and 3M File No. E17385

3M Water Seal

Test

Samples were constructed using Scotch® Rubber Mastic Tape 2228 as a seal

between PVC cable jackets and connecting ground wires (3M™ Cable Grounding Kit

2252). The specimens were thermal cycled in water baths at 25ºC and 90ºC. The

total test time of 336 hours revealed no significant change in insulation resistance.

The results meet requirements listed in UL 486D Standard for Insulated Wire

Connectors for Use

With Underground Connectors for insulation resistance (6.0 megohms, section 7.1)

and dielectric voltage withstand (2.2kV, 1 minute, section 8.1).