Volsun FST6525 Self-Curing Waterproof Insulation Protection Pad Sheet
- self-curing insulation pad, waterproof cable repair patch, 35kV cable sealing, telecom base station waterproofing, weatherproofing insulation wrap, self-vulcanizing protection pad
- Detailed
The Volsun FST6525 is an innovative, moisture-activated self-curing insulation and waterproofing material engineered for high-reliability sealing applications. Upon exposure to ambient air humidity, this pliable material undergoes a hassle-free self-vulcanization process to form a rugged, heavy-duty dielectric and watertight barrier.
Designed for maximum operational efficiency, it requires no torches, adhesives, or specialized installation tools. Technicians can easily cut, mold, and wrap the material by hand directly on-site, making it an excellent choice for rapid maintenance and challenging high-altitude installations. It delivers robust insulation protection for electrical systems up to 35kV, alongside high-performance weatherproofing for mission-critical outdoor infrastructure.
Ambient Air Self-Curing: Formulated to initiate cross-linking automatically upon contact with atmospheric water vapor, forming a permanent protective layer.
Tool-Free Fast Installation: Pliable and hand-moldable construction eliminates the need for heat shrink torches or specialized training, significantly simplifying aerial or high-altitude tasks.
On-Site Customization: The material is highly plastic and can be effortlessly trimmed or shaped to fit complex, irregular geometries and configurations.
All-Weather Performance: Engineered to withstand extreme environments—it remains flexible without hardening in freezing cold and resists slumping or flowing under intense heat.
Excellent Dielectric & UV Resilience: Delivers uniform insulation integrity combined with exceptional UV and environmental aging resistance for extended outdoor service life.
Color-Coded Phase Selection: Available in standard industry phase colors: Black, Red, Yellow, and Green.
Power Grids & Distribution: Sealing and insulation protection for overhead wire clamps, exposed busbars, switchgear bare metal components, and repairing localized overhead conductor insulation.
Telecom & Base Stations: Heavy-duty waterproofing for 4G/5G infrastructure, including irregular antennas, splitters, couplers, tower defenses, and GPS integrated cabinets.
Cable Cabinet Sealing: Blocking and weatherproofing entry holes for outdoor electrical enclosures and cabinet cable management systems.
Heavy Industrial Transport: Ideal for specialized power routing and moisture isolation requirements in high-speed rail networks, marine vessels, and shipbuilding.
Key Features & Advantages
Diverse Industry Applications
Item
Technical Data
Test Standard
Before
curing:
Appearance Smooth surface
Smooth surface, no
bubbles, smooth surface when the isolation film is removed
/
Packaging
Vacuum packaging without
air leakage
/
The required use time after
unpacking
≤60min (<30°C)
/
Fully cured
7 days (23°C, 50%
humidity)
/
After curing:
Shore hardness A
35 (Shore A)
GB/T 531.1-2008
Volume resistivity
1×1013Ω m
GB/T 31838.3-2019
Surface resistivity
5×1013 Ω
GB/T 31838.3-2019
Flame retardant performance
V-0
GB/T 2408-2021
Breakdown voltage
Breakdown voltage after
curing at room temperature for 4h
≥25kV
GB/T 1408.1-2006
Sheet breakdown voltage
(1.8±0.2mm thick, in transformer oil)
≥30kV
GB/T 1408.1-2006
UV accelerated aging
Breakdown voltage after
1000h
≥26kV
GB/T 1408.1-2006
Low temperature test (-20℃,360h)
Appearance
No significant change in
color, flexibility, etc. GB/T 1408.1-2006
GB/T 1408.1-2006
Breakdown voltage
≥28kV
GB/T 2423.1-2008
High temperature test
(135°C,168h)
Breakdown voltage ≥ 25kV
GB/T1408.1-2006
Technical Performance after covering Bare Conductor Wire
Performance
Technical Requirements
Test Standards
Breakdown Voltage
≥30kV
GB/T 3048.8-2007
Water immersion pressure
test
12kV, 4h, no breakdown
GB/T 1408.1-2006
Protection class
IP68
GB/T 4208-2017
Dimensions
Specification
Width (mm)
Thickness (mm)
Length (mm)
FST65251
90
1.8
600
FST65252
80
1.8
1000
FST65253
90
1.8
300
Note: Special size and package are available on
request.
