3M™ Scotch® Rubber Mastic Tape 2228
3M™ 2228 is a conformable, self-fusing rubber electrical insulating and sealing tape with an EPR backing and temperature-stable mastic adhesive. Designed for indoor and outdoor use, it provides exceptional sealing and electrical insulation even under harsh environmental conditions.
3M 2228 Features:
- Conformable to irregular surfaces
- Self-fusing for secure sealing
- Compatible with solid dielectric cable insulations
- Excellent UV and moisture resistance
- High adhesion to copper, aluminum, and power cable jackets
- 65 mil thickness for rapid build-up
3M 2228 Applications:
- Primary insulation for cable connections up to 1000V
- Bus bar connections rated up to 35kV
- Vibration padding for motor leads
- Moisture sealing for service drops and ground rods
- Jacket sealing in power cable installations
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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| Properties | Typical Value |
| Temperature Rating | 266ºF (130ºC) |
| Color | Black |
| Thickness | 65 mil (1,65mm) |
| Adhesion | Steel 15.0lb/in (26,2N/10mm) PE 10.0lb/in (17,5N/10mm) |
| Fusion | Pass (Type I) |
| Tensile Strength | 150psi (1,03N/mm2) |
| Elongation | 1000% |
| Dielectric Breakdown (Wet or Dry) | 500V/mil (19,7kV/mm) |
| Dielectric Constant | 3.5 |
| Dissipation Factor | 1.0% |
| Water Absorption | 0.15% |
| Water Vapor Transmission Rate | 0.1g/100in2/24hr |
| Ozone Resistance | Pass |
| Heat Resistance | Pass, 130ºC |
| UV Resistance | Pass |
