ACC ESSORI ES www.hubbell.com/burndy | F-9 MASTSEAL 8 Self-Fusing EPR Tape with Butyl Mastic Adhesive TYPE MASTSEAL 8 Self-Fusing Tape ASTM D44325, ASTM 1000, ASTM D4388 Mastseal 8 is the ultimate solution for electrical insulation and sealing challenges. This innovative tape combines the flexibility and self-fusing properties of ethylene propylene rubber (EPR) with the robust adhesion of butyl mastic adhesive. Designed for reliability and durability, Mastseal 8 ensures a secure, waterproof seal on a variety of materials including copper, aluminum, and cable jackets. Whether for industrial, commercial, or residential applications, Mastseal 8 provides consistent performance even under extreme conditions. Requires Environmental Controlled Storage Features & Benefits • Strong Adhesion - excellent adherence to copper, aluminum, and various cable jackets, ensuring a tight and secure seal • Waterproof Performance - offers continuous water resistance, protecting against moisture and various wet locations • Temperature Stability - remains stable and functional at temperatures up to 90°C, with an overload tolerance of up to 130°C • Environmental Resistance - withstands exposure to ozone, UV, and xenon, maintaining integrity and performance in diverse environments • Versatility - easily conforms to irregular shapes and surfaces, providing a versatile solution for complex sealing needs • Longevity - designed to resist extreme temperatures and environmental conditions, ensuring long-lasting protection and insulation Catalog Number Series Material Color Dimensions MASTSEAL 8 Mastseal Series Self-Fusing EPR Black 2” x 10’ Common Applications Mastseal 8, with its unique combination of self-fusing ethylene propylene rubber (EPR) and butyl mastic adhesive, is designed for a variety of demanding sealing and insulation tasks. The applications below are a handful of common applications that highlight the adaptability and effectiveness of Mastseal 8 in providing reliable insulation and sealing solutions across various industries and environmental conditions. 1. Electrical Insulation and Sealing: Mastseal 8 is extensively used for insulating and sealing electrical connections, particularly in splices and terminations. Its strong adhesion to materials like copper and aluminum ensures a secure, waterproof seal that protects against short circuits and corrosion, making it ideal for both overhead and underground electrical applications. 2. Waterproofing Outdoor Connections: Given its excellent waterproof performance, Mastseal 8 is ideal for outdoor installations where connections may be exposed to moisture and rain. This includes outdoor lighting systems, external wiring in buildings, and telecommunications equipment, ensuring that these systems remain operational despite wet conditions. 3. Protection Against Environmental Factors: The tape’s resistance to ozone, UV, and xenon exposure makes it suitable for use in harsh environmental conditions. This application is crucial for cables and electrical components used in industrial environments or areas with high UV exposure, helping to maintain the integrity and longevity of these systems. 4. High-Temperature Applications: Mastseal 8’s ability to withstand temperatures up to 90°C and tolerate overloads up to 130°C makes it suitable for insulating and sealing in environments with fluctuating or high temperatures, such as in industrial processing plants or in proximity to heating elements. 5. Irregular Surfaces and Complex Configurations: The tape’s versatility and ease of application on irregular shapes and surfaces make it an excellent choice for sealing and insulating uniquely shaped joints and components. This is particularly useful in automotive, aerospace, and manufacturing sectors where components may not have standard shapes. Certifications and Standards: Mastseal 8 meets important industry standards, including ASTM D4325 for polyvinyl chloride (PVC) insulating tape, ASTM D1000 for pressure-sensitive adhesive-coated tapes used for electrical and electronic applications, and ASTM D4388 for rubber insulating tape. These certifications ensure that the tape adheres to rigorous safety and performance criteria. Storage Concerns: Proper storage in an environmentally controlled setting is crucial to maintain the physical and adhesive properties of Mastseal 8. This helps ensure that the tape performs effectively when applied, preserving its adhesion and sealing capabilities.
