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G7/SIGC201 Silicone Glass Tubes

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Product Spotlights

G-7 Glass Silicone Laminates are made from woven glass cloth and thermosetting silicone resin, offering excellent heat resistance, arc resistance, and electrical insulation. They perform reliably in humid conditions and maintain stability at high temperatures up to 220°C. Ideal for high-temperature electrical insulation applications requiring durability and long-term performance.
Negotiable MOQ: 500 Kilograms (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Silicone + Glassfiber Cloth
Color:
White
Application:
Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Medical Equipment, Transportation
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao, Ningbo, Shanghai, Tianjin
Delivery Detail:
30 days
Material Other, Silicone + Glassfiber Cloth
Color White
Application Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Medical Equipment, Transportation
Thermal Rating H 180
Length 1000mm
Transport Package Pallet or Wooden Case
Specification Diamete 8-300mm
Trademark YILONG
Origin China

Description

G-7 is a high-performance glass-cloth reinforced silicone laminate with a natural cream-to-white color. It is made by impregnating continuous woven glass cloth with thermosetting silicone resin, providing excellent heat and arc resistance. G-7 maintains good electrical insulation even under humid conditions and performs reliably at high temperatures up to 220 °C (392 °F). While silicone may be less strong than epoxies at low temperatures, it retains superior mechanical strength after prolonged exposure above 220℃.


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Features

Excellent heat and arc resistance

High-temperature performance up to 220 °C maximum

Low dielectric loss in dry conditions

Maintains good electrical insulation properties in humid or wet environments

Dimensionally stable and machinable with care

Cream-to-white natural color

Superior long-term strength at elevated temperatures


Applications

High-temperature electrical insulation components

Motor and generator insulation parts

Circuit board supports, switch mounts, and terminal blocks

Arc barriers in electrical equipment

Switchgear panels and electrical assemblies exposed to high heat

High-performance insulation in electronics and industrial devices


Test / Property Unit G-3 G-5/G9 G-7 G-10 G-11 G-11H
PHYSICAL






Density g/cm³ 1.8 1.85 1.8 1.8 1.8 1.9
Water Absorption, 24 hrs % 2.65 0.6 0.1 0.1 0.2 0.2
MECHANICAL






Tensile Strength – lengthwise MPa 289 425 138 310 296 280
Tensile Strength – crosswise MPa 234 352 - 262 255 250
Flexural Strength – lengthwise MPa 279 425 207 517 552 372
Flexural Strength – crosswise MPa 234 352 - 448 483 124
Flexural Modulus – lengthwise GPa 12.4 13.8 11 18.6 20.7 14
Flexural Modulus – crosswise GPa 9.7 11.7 - 16.6 18.6 12
Izod Notched Impact – lengthwise kJ/m² 0.64 0.67 0.64 0.71 0.61 16
Izod Notched Impact – crosswise kJ/m² 0.59 0.45 - 0.61 0.46 14
Compressive Strength MPa 379 448 345 448 434 346
Hardness, Rockwell M 110 115 105 110 112 112
ELECTRICAL






Dielectric Strength (short time, 1/8" thick) kV/mm 18.1 11.8 13.8 31.5 35.4 16
Dielectric Constant at 1 MHz 7.3 6.3 4.5 5 4.5 4.8
Dissipation Factor at 1 MHz 0.023 0.019 0.018 0.019 0.02 0.02
Arc Resistance s 180 180 240 100 120 120
THERMAL






Coefficient of Linear Thermal Expansion – lengthwise 10⁻⁶ / °C 1.46 1.27 1.15 0.88 1.15 15
Coefficient of Linear Thermal Expansion – crosswise 10⁻⁶ / °C 1.76 1.45 1.38 0.88 1.27 20
Temperature Resistance °C 120 130 180 130 155 180
Thermal Class / E B H B F H
Flammability Rating UL94 HB V-0 V-0 HB HB HB
Thermal Conductivity W/m·K 0.29 0.29 0.29 0.29 0.29 0.25


Product Tags: G7 Silicone Glass Tube , Silicone Glass Tube , SIGC201 Silicone Glass Tube

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Verified Business License
Business Type
Manufacturer
Year Established
1966
Factory Size
Above 100,000 square meters
Annual Export Value
US$10 Million - US$50 Million

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