Epoxy Fiberglass Insulating Tube, Rolled Process Not Extruded, Excellent Arc Resistance, Switchgear Components, Bulk Order

• Customization: Available
• Color: Yellow, Amber
• Material: Epoxy Resin + Woven Glass Fiber
• Model NO.: epoxy glass tube-YD
• Kind: Epoxy Resin Tube
• Water Absorption: <0.2%
• Tensile Strength: 280-320 MPa
• Outer Diameter (Od): 5 mm - 200 mm (Customizable)
• Inner Diameter (ID): 2 mm - 190 mm (Wall Thickness: 1.5 mm - 10 mm)
• Density: 1.85-1.95g/Cm³
• Flexural Strength: 380-420 MPa
• Dielectric Strength: 16-20kv/mm
• Wall Thickness: 1-25mm
• Specification: 1000mm
• Trademark: Youda
• Origin: Liaoning, China
• Production Capacity: 100 Ton/Tons Per Month
• Package Size: 110.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 10.000kg

Product Description

Epoxy Tube - High Dielectric Strength & Rigid Amber Insulation for Electrical and Industrial Applications

Manufactured by Youda Insulation Materials Co., Ltd.
 Precision Engineered / Customizable / Global Export Ready

Product Introduction

Epoxy Tube

This epoxy tube features a solid, non-transparent amber color with a smooth surface and visible woven glass cloth texture, characteristic of its sheet-rolled construction. It is made from high-purity epoxy resin reinforced with woven fiberglass fabric, offering excellent electrical insulation, high mechanical rigidity, good heat resistance up to 130°C, and low moisture absorption. The material maintains dimensional stability under load and resists deformation in demanding environments. It is widely used in electrical components such as motor spacers, transformer bobbins, and insulating bushings, as well as in laboratory fixtures, automation jigs, sensor mounts, and structural supports in industrial machinery.

Product Specifications

Parameter	Specification
Material	Epoxy resin + Woven glass fiber
Color	Yellow/Amber
Density	1.85–1.95g/cm³
Tensile Strength	280–320MPa
Flexural Strength	380–420MPa
Notched Impact Strength	18–22kJ/m²
Heat Deflection Temperature (1.8 MPa)	125–135°C
Dielectric Strength	16–20kV/mm
Volume Resistivity	≥1.0 × 10^14Ω·cm
Water Absorption (24 h)	0.10–0.15%
Coefficient of Linear Thermal Expansion	(12–15)×10^-6/°C
Available Outer Diameter	5–300mm
Wall Thickness	1–25mm
Standard Length	Up to 2000mm

Product Showcase

Key Advantages

Product Benefits:
   ♦ Excellent electrical insulation performance even in high-humidity conditions
   ♦ High rigidity and compressive strength suitable for load-bearing spacers and supports
   ♦ Easily machinable with standard carbide tools for drilling, milling, turning, and tapping
   ♦ Low water absorption ensures stable performance in damp or variable environments
   ♦ Natural amber color provides consistent visual identification and batch uniformity

Why Choose Youda Insulation Materials Co., Ltd.?
   ♦ 35 years of specialized experience in manufacturing high-performance composite and engineering plastic rods
   ♦ Full in-house production and quality control from raw material to finished product
   ♦ Customization support for size, tolerance, and surface finish
   ♦ Fast sample and bulk order turnaround with global export capability
   ♦ Dedicated technical team for material selection and design-for-manufacturing (DFM) support

Product Components

Product Applications

Company Introduction

FAQ

Q1: How does this rolled epoxy tube differ from pultruded or extruded tubes?
A: This tube is fabricated by rolling pre-cured epoxy-glass laminate sheets and hot-pressing into shape, resulting in a homogeneous structure with visible glass weave and a longitudinal seam—ideal for precision machining and electrical insulation, unlike fiber-dominated pultruded profiles.

Q2: Can I machine it myself using standard workshop equipment?
A: Yes, it can be drilled, milled, turned, or threaded using standard carbide-tipped tools; recommended feed rates prevent chipping and ensure clean edges.

Q3: What is the maximum continuous operating temperature?
A: It reliably performs up to 130°C continuously; short-term exposure to 150°C is possible but may reduce long-term mechanical stability.

Q4: Is it suitable for outdoor use without additional protection?
A: Standard amber tubes are not UV-stabilized and may discolor or lose surface gloss under prolonged sunlight; we offer UV-resistant variants for outdoor applications upon request.

Q5: How do I choose the right diameter and wall thickness for my application?
A: For electrical insulation at 1–10 kV, a wall thickness of 2–5 mm is typical; for mechanical supports, dimensions depend on load and span—we provide free engineering guidance to optimize your selection.

Q6: Do you provide samples, and what is the minimum order quantity?
A: Yes, we supply cut samples (e.g., 50–100 mm length); MOQ starts at 1 piece for prototypes, with volume pricing available from 10 pieces.

Q7: Can you achieve tight tolerances like ±0.02 mm on critical dimensions?
A: Yes, using CNC grinding and precision turning, we routinely hold ±0.02 mm on outer diameter, inner diameter, or length for high-precision components.

Q8: What is the lead time for custom-sized tubes?
A: Standard sizes ship within 3–5 working days; custom-machined tubes with tight tolerances require 7–12 working days depending on complexity and order volume.