3026 Phenolic Cotton Cloth Laminate Sheet

3026 Phenolic Cotton Cloth Laminated Sheet is a high-pressure thermoset laminate engineered from finely woven cotton fabric impregnated with phenolic resin. Manufactured through a precise process of baking and hot pressing, this grade offers a balanced combination of robust mechanical strength and reliable electrical insulation under normal atmospheric conditions.

Commonly referred to as textile-based bakelite or simply phenolic cloth sheet, grade 3026 is distinct for its fine-weave construction, which enhances its machinability and impact resistance compared to coarse 3025 Phenolic cotton cloth sheet

Composition & Structure

• Material: The material utilizes a high-quality, fine-weave cotton cloth

• Role: The cotton fabric acts as the mechanical backbone. It provides high impact strength, prevents crack propagation, and offers excellent dimensional stability.

• Why Fine Weave: The use of fine-weave fabric results in smoother edges during machining and allows for the production of thinner sheets with uniform strength.

Key Features & Benefits

• High Mechanical Strength: The cotton cloth reinforcement provides excellent tensile and flexural strength, making it ideal for structural applications

• Superior Impact & Wear Resistance: It exhibits high impact strength and resistance to wear, ensuring longevity in moving parts like gears and guides

• Good Electrical Performance: Offers dependable dielectric strength and insulation resistance, particularly suitable for low-voltage applications and transformer oil environments

• Oil and Chemical Resistance: Performs well in transformer oil and demonstrates good resistance to water, dilute acids, and common solvents

• Exceptional Machinability: The material can be easily cut, drilled, punched, turned, or milled to precise tolerances using standard metalworking equipment, allowing for the creation of complex components

Standard Dimensions & Availability

• Thickness Range: 0.5 mm to 80 mm (Custom thicknesses up to 100mm+ may be available upon request)

• Standard Sheet Sizes:1030 x 2070 mm  1020 x 2020 mm 1020 x 2040 mm

• Surface Finish: Smooth, matte or semi-gloss finish.

Customization: CNC machining, die-cutting, and custom thickness grinding are available upon request

Phenolic Cotton Cloth Sheet Applications

The versatile nature of 3026 makes it suitable for a wide array of industrial applications, particularly where mechanical wear and electrical insulation are required simultaneously.

Electrical & Electronics Industry

Structural Insulation: Used as terminal boards, insulation spacers, and cleats in switchgear and control panels.

Motor Components: Ideal for manufacturing slot wedges, end laminations, and rotor insulation in small to medium-sized motors (operating under normal, dry conditions).

Transformer Components: Specifically suitable for fabricating press plates, washers, and barriers used in transformer oil, as the material does not contaminate the oil and maintains its stability.

Oil-Immersed & Specialized Environments

Oil Industry Components: Due to its stability in mineral oils, 3026 is used to manufacture piston rings, sealing rings, and valve plates for compressors and pumps operating in oil-rich environments.

Jigs & Fixtures: Commonly used in the aerospace and automotive industries for testing jigs, drilling fixtures, and clamping tools because of its dimensional stability and ability to absorb vibration without damaging metal parts being machined.