PRODUCT SHORT DESCRIPTION
3240 yellow epoxy fiberglass laminated board, flame-retardant and heat-resistant, custom-cut for battery packs and electrical insulation. High dielectric strength, low water absorption.

PRODUCT DESCRIPTION

3240 yellow epoxy fiberglass board is a thermoset laminated sheet made from electrical-grade glass cloth impregnated with epoxy resin and cured under heat and pressure. It combines high dielectric strength, good mechanical performance, flame retardancy and resistance to heat, making it a standard insulating material for battery packs, switchgear, motors, transformers and electrical fixtures. The boards are supplied as full sheets or cut to custom sizes, slots and shapes, including precision parts for lithium-battery module separation and support.

Key Features
• High Dielectric Strength — Dense epoxy-glass laminate provides reliable electrical insulation and breakdown resistance.
• Heat & Flame Resistant — Withstands elevated temperatures and supports flame-retardant electrical designs.
• Strong Yet Light — Good tensile and flexural strength with far lower weight than metal plates.
• Low Water Absorption — Stable electrical and dimensional performance even in humid environments.
• Custom Cut & Machined — Full sheets or CNC-cut plates, slots, gaskets and shaped parts to drawing.
• Battery-Grade Use — Widely used for lithium-battery pack separation, support and insulation.
• Smooth Surface — Uniform yellow surface with consistent thickness and no voids.
• Standard Material — Produced to GB/T 1303 3240 epoxy-glass laminated sheet requirements.

Specifications
• Grade: 3240 epoxy fiberglass laminate
• Color: Yellow / amber
• Resin system: Epoxy resin + E-glass cloth
• Properties: Flame-retardant, heat-resistant
• Supply: Full sheets or custom cut parts
• Typical thickness: 0.5-100 mm
• Standard: GB/T 1303 / NEMA G-10 class

Applications Lithium-battery pack insulation and supports, switchgear and busbar partitions, motor and transformer insulation, fixtures, jigs and electrical machinery components.