EPOXY RESIN BOARD 2MM

EPOXY RESIN BOARD 2MM

The EPOXY RESIN BOARD 2MM is a rigid epoxy-resin electrical insulation board used in lithium battery packs, electrical assemblies and industrial fabrication. ARB's current epoxy-board range identifies this version at 2mm thickness in the 502 x 338 mm sheet family, giving pack builders a practical panel that can be cut into separators, liners and protection pieces for battery modules. Its 2mm thickness provides the most substantial and rigid barrier in this four-size ARB epoxy-board range, making it useful where insulation must also contribute mechanical separation.

Battery-pack construction requires more than electrical interconnection: conductive cell cans, busbars, terminals, BMS hardware and metal enclosures must also be mechanically separated and electrically isolated. Epoxy resin board is widely used for this purpose because the laminate combines a nonconductive barrier with useful rigidity and dimensional stability. Current ARB and external battery-component listings describe this product family as an epoxy resin board, epoxy insulation board, electrical insulation sheet and fiberglass epoxy laminate for battery and industrial use. The 2mm version provides a defined insulation layer that can be incorporated into production fixtures, module partitions, pack walls and component mounting areas without relying on soft insulation alone.

The product family is described as epoxy resin reinforced with fiberglass cloth and consolidated into a rigid laminate. This construction gives the sheet a combination of electrical insulation, mechanical strength and resistance to heat, moisture, chemicals, abrasion and general handling. In battery-pack manufacturing, those characteristics are useful because an insulation panel may need to stay flat while cells are compressed, shield a BMS or busbar from the enclosure, or prevent rubbing between adjacent structural parts. At 2mm, the sheet offers greater panel rigidity and resistance to flexing than the thinner variants, which is useful for outer insulation panels, internal partitions, component mounting barriers and structural separators within a battery enclosure. The 502 x 338 mm sheet format is also convenient for fabrication: panels can be marked, cut, drilled or machined into custom shapes for pack-specific layouts. Searchers in the battery market commonly use closely related terms such as battery insulation board, epoxy insulation sheet, fiberglass epoxy board, lithium battery separator board and FR4/3240 epoxy sheet; the exact material grade or certification should follow the supplied product datasheet where a project requires a specified standard.

This epoxy board is suitable for lithium battery pack and general electrical-insulation work where a rigid non-metallic separator is preferred. It can be used alongside cylindrical 18650/21700 assemblies, large cylindrical cells, prismatic LiFePO4 modules and other battery formats because its role is mechanical/electrical separation rather than cell chemistry control. Choose the 2mm version where the pack design calls for a thicker, more rigid insulation plate rather than a minimal separator. It is well suited to enclosure barriers, BMS mounting panels, terminal/busbar partitions and larger battery modules. Use 0.5mm, 0.8mm or 1mm where space efficiency and lower added thickness are more important. For a finished battery system, combine the board with appropriate cell holders or compression structures, fish paper or barley paper where required, busbar insulation, BMS, wiring protection, fusing, heat-shrink/PVC and a correctly designed enclosure.

Applications

• Prismatic and cylindrical lithium battery modules requiring a rigid insulation separator between cells or cell groups.

• BMS, busbar, terminal and fuse areas where an insulating barrier is used to separate live conductive hardware from nearby components.

• Battery enclosures and metal boxes requiring an internal electrical insulation liner between the cell assembly and chassis.

• EV, e-bike, e-rickshaw, robotics and custom mobility battery packs built with lithium-ion or LiFePO4 cells.

• Solar ESS, UPS, inverter, backup-power and industrial battery assemblies requiring durable cut-to-shape electrical insulation panels.

Installation Guide

Measure the required insulation area and cut the board to the battery module or enclosure geometry using suitable tools for fiberglass-reinforced laminate. Keep edges smooth and remove drilling or cutting dust before the piece enters the pack. Position the board so it fully covers the intended conductive interface without pinching sense wires, power cables or cell vents. Where it is used near busbars or terminals, maintain proper electrical clearances and ensure fasteners cannot create an unintended conductive path through the insulation layer. During fabrication, use appropriate eye, respiratory and skin protection for composite-sheet dust, and inspect the finished piece for cracks, delamination, sharp edges or incomplete coverage before final pack closure.

Why Choose ARB Accessories?

ARB Accessories supplies epoxy resin boards together with lithium cells, BMS products, busbars, insulation paper, tapes, cell holders, wires, connectors, fuses, enclosures and battery-pack manufacturing hardware for Indian EV, solar, ESS, inverter and industrial battery projects. The EPOXY RESIN BOARD 2MM gives pack builders a ready-to-source insulation sheet in a defined thickness, helping standardize the mechanical and electrical insulation layer across prototypes, service work and repeat production while keeping related battery components available from the same supplier.