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FR5 Epoxy Glass Tube

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Product Spotlights

FR-5 Epoxy Glass Tubes offer excellent electrical insulation, high mechanical strength, and superior thermal resistance. They maintain reliable performance in high-voltage, high-temperature, and demanding industrial environments, providing long-term durability and dependable insulation protection.
Negotiable MOQ: 500 Kilograms (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Epoxy + Glassfiber
Color:
Yellow
Application:
Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Medical Equipment, Transportation
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Qingdao Yilong Insulation Material Co., Ltd.
Verified Business License
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao, Ningbo, Shanghai, Tianjin
Delivery Detail:
30 days

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Material Other, Epoxy + Glassfiber
Color Yellow
Application Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Medical Equipment, Transportation
Thermal Rating F 155
Length 1000mm
Transport Package Pallet or Wooden Case
Specification Diamete 10-300mm
Trademark YILONG
Origin China

Description

FR-5 epoxy glass tubes are manufactured from woven fiberglass cloth impregnated with high-performance epoxy resin and cured under controlled heat and pressure. This construction provides excellent electrical insulation, high mechanical strength, and enhanced thermal resistance.

Designed for demanding operating conditions, FR-5 tubes maintain stable dielectric and mechanical performance in high-voltage, high-temperature, and harsh industrial environments, ensuring long service life and reliable insulation protection.


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Features

Excellent electrical insulating and dielectric properties

High mechanical strength and dimensional stability

Superior thermal resistance compared to standard epoxy glass grades

Low electrical loss under high-frequency and high-voltage conditions

Good resistance to moisture, chemicals, and environmental aging

Reliable performance in severe operating conditions


Applications

Electrical insulation components for high-voltage equipment

Structural insulating parts in electrical and electronic systems

Insulating tubes for industrial machinery and power equipment

Components used in aerospace and automotive electrical systems

Electrical and electronic applications requiring high thermal stability and long-term reliability


FR5 Epoxy Glass Tube
No. Item Unit Specification
1 Rated Voltage kV 35 – 1100
2 Temperature Class °C 155
3 Tensile Strength MPa ≥ 200
4 Axial Compressive Strength MPa ≥ 150
5 Interlaminar Flexural Strength MPa ≥ 120
6 Vertical Flexural Strength (Normal) MPa ≥ 400
7 Dielectric Loss Factor (50 Hz) — ≤ 0.05
8 Surface Voltage Resistance (After Wetting) kV ≥ 12
9 Partial Discharge pC ≤ 5
10 Water Absorption % ≤ 1
11 Density g/cm³ 1.8 – 1.95
12 Diameter Range mm 5 – 1500
13 Wall Thickness mm 0.5 – 200
14 Maximum Length m Up to 12
15 Color — Green, Red, White, Yellow


Product Tags: FR5 Tube , Epoxy Glass Tube , Insulation Tube

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Qingdao Yilong Insulation Material Co., Ltd.
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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