Insulating adhesive tape No.188UL

fiberglass fabricsiliconewhite

Overview
No.188UL is a glass cloth–backed adhesive tape coated with a pressure-sensitive silicone adhesive. Designed for Class H heat resistance, it provides stable electrical performance and mechanical strength for electrical insulation, masking and coil bundling in high-temperature environments.

Features

• High mechanical strength — approximately three times that of cotton or acetate cloth.
• Maintains stable electrical properties after prolonged exposure to 180°C.
• UL510A FR certified.
• Excellent dimensional stability vs. many plastics; less affected by heat and humidity.

Structure
Glass cloth backing coated with pressure-sensitive silicone adhesive.

Properties (sample observed values)
Product No., Backing thickness [µm], Total thickness [µm], Length [m], Color
No.188UL, Backing: 130, Total: 180, Length: 33, White

Peeling strength [N/19mm], Tensile strength [N/19mm], Elongation [%], Breakdown voltage (kV), Electrolytic corrosion factor
No.188UL, 6.7, 600, 7, 3.5, 0.96

Applications

• Outer and interlaminar insulation for heat-resistant transformers.
• Covering and protection of external parts.
• Outer insulation and bundling of coils.

Remarks

• Values above are sample observed values and are not guaranteed performance specifications.

Specifications / Technical data

• Model: No.188UL
• Backing: Glass cloth
• Adhesive: Pressure-sensitive silicone adhesive
• Heat resistance class: Class H (stable up to 180°C for extended periods)
• UL certification: UL510A FR certified
• Backing thickness: 130 µm
• Total thickness: 180 µm
• Standard length: 33 m
• Color: White
• Peeling strength (sample): 6.7 N/19mm
• Tensile strength (sample): 600 N/19mm
• Elongation (sample): 7 %
• Breakdown voltage (sample): 3.5 kV
• Electrolytic corrosion factor (sample): 0.96
• Note: Values shown are sample observed values and not guaranteed performance.