You are here: Home » Products » Telecom Connection System » 2228 Rubber Mastic Tape
Share to:

2228 Rubber Mastic Tape

  • DW-2228

Product Description  


     2228 is a conformable self–fusing rubber electrical insulating and sealing tape. 2228 consists of an ethylene propylene rubber (EPR) backing coated with an aggressive, temperature–stable mastic adhesive. The tape is made 65 mils (1,65 mm) thick for quick application build–up. It is designed for electrical insulating and moisture sealing applications.

     2228 can be used on copper or aluminum conductors rated at 90°C, with an emergency overload rating of 130°C. It offers excellent resistance to moisture and ultraviolet exposure and is intended for both indoor and weather exposed outdoor applications.

Typical Data
Temperature Rating: 194°F (90°C)
Color Black
Thickness 65 mils (1,65 mm)

Steel      15.0lb/in (26,2N/10mm)

PE          10.0lb/in (17,5N/10mm)

Fusion Type I Pass
Tensile Strength 150psi (1,03N/mm^2)
Elongation 1000%
Dielectric Breakdown

Dry           500v/mil (19,7kv/mm)

Wet          500v/mil (19,7kv/mm)

Dielectric Constant 3.5
Dissipation Factor 1.0%
Water Absorption 0.15%
Water Vapor Transmission Rate 0.1g/100in^2/24hr
Ozone Resistance Pass
Heat Resistance Pass, 130°C
UV Resistance Pass
  • Conformable for application over irregular surfaces

  • Compatible with solid dielectric cable insulations

  • Self–fusing tape

  • Flexible over wide temperature range

  • Excellent weather and moisture resistance

  • Excellent adhesion and sealing characteristics with copper,aluminum and power cable jacket materials.

  • Thick construction allows quick application build–up and padding over irregular connections




  • Primary electrical insulation for cable and wire connections rated up to 1000 volts

  • Electrical insulation and vibration padding for motor leads rated up to 1000 volts

  • Primary electrical insulation for bus bar connections rated up to 35 kv

  • Padding for irregular shaped bus bar bolted connections

  • Moisture seal for cable and wire connections

  • Moisture seal for service

 Email:   Tel: +86 574 27877377   Add: 15th Floor, Aolisai Building, No. 958, Qianhu North Road, Ningbo 315100, China.

Copyright 2004-2021 Dowell Industry Group Co., Ltd. All Rights Reserved. Sitemap | XML