Insulation Labels

Labelling inside switchgear, on a motor terminal or across a battery module means putting a piece of material where electricity already is. Whatever you apply there should not itself become a conductive path — and it should not be mistaken for a part of the electrical insulation system.

We supply electrically insulating film labels for exactly that job: polyester, polyimide and PVC face stocks that are non-conductive and are chosen for identification on and around energised equipment. Tell us where the label goes and what it must survive.

Scope note: these are identification labels made from insulating film. They are not electrical insulation components and must not be used in place of insulation, barriers, sleeving or any part of an electrical safety system.

Where Insulation Labels Are Used

Identification on and around energised equipment:

• Switchgear and control panels — breaker, terminal and busbar identification.
• Motors and transformers — winding, terminal and nameplate labels.
• Cable and harness work — core, circuit and phase marking.
• Electronics assembly — board, connector and assembly identification.
• Battery modules — cell, module and terminal marking.

Need the polyimide material's own electrical and thermal parameters? See PI Film Labels. Standard-temperature film labels are covered by PET Film Labels.

Key Features

Non-conductive film stocks

Face stocks are insulating films — polyester, polyimide and PVC — chosen so the label itself does not introduce a conductive path where it is applied, which is the reason to specify a film label rather than a paper one near live equipment.

Stable on equipment that runs warm

Insulating films are selected to keep their dimensions as panels, motors and cables heat up in service, so the label does not shrink or curl away from the terminal it identifies — identification that stays legible for the working life of the equipment.

Resists cleaning and process chemicals

Contact cleaners, fluxes, oils and solvents are normal in electrical work. Face stocks and adhesives are matched so the print does not lift or smear when the panel is cleaned, keeping circuit and terminal markings readable.

Printable by laser, thermal transfer or the method you already run

Stocks are available for laser printing, thermal transfer and barcode or QR printing, so identification is produced on your existing equipment and applied before the panel is assembled rather than hand-written on site.

Technical Specifications

• Face stock: polyester (PET), polyimide (PI) or PVC insulating film
• Adhesive: permanent acrylic, matched to the substrate and service environment
• Liner: PET release liner
• Printing: laser, thermal transfer, barcode and QR
• Format: rolls or sheets; die-cut to size and shape
• Surface: coated for abrasion and stain resistance and for printability
• Electrical and thermal performance: confirmed against the selected film and your application — tell us the requirement and we will specify

Send us the location, the substrate and the environment, and we will confirm the film and adhesive.

How to Select and Order

• Choose the film by the environment, not by a performance figure — polyimide where the equipment runs hot, polyester for general panel and board use, PVC where flexibility around a curved surface matters.
• Match the adhesive to the substrate — painted steel, anodised aluminium, cable jacket and connector housings each behave differently; the substrate usually decides the specification.
• Tell us what the label must not interfere with — if the label sits near a terminal or a creepage path, say so at the enquiry stage so the construction can be confirmed against your requirement.

MOQ, lead time and freight depend on material, size and quantity — send your specification and volume and we will quote.

FAQ

• What is the dielectric strength of these labels? We supply identification labels rather than insulation components, so we do not publish a dielectric rating for them. If your project needs a material with specified electrical parameters, tell us and we will confirm what is available, with documentation provided offline.
• Can I use these as insulation or to prevent short circuits? No. They are identification labels. They must not be used in place of insulation, sleeving, barriers or any part of an electrical safety system.
• Which film should I choose? Polyimide for equipment that runs hot, polyester for general panel and board identification, PVC where the label has to follow a curved or irregular surface. Tell us the application and we will confirm.
• How is this different from the PI film labels? Polyimide is one specific film, covered on its own page including its electrical and thermal parameters. This page covers identification on and around electrical equipment, across the films suitable for it.
• Can I test before ordering? Yes — request samples and check adhesion and print on your own equipment and surfaces before you commit a specification.

Bofeng New Materials supplies electrical insulation labels to switchgear builders, motor and transformer manufacturers, cable assemblers and electronics producers as part of its Eco Labels range. Tell us the location, the substrate and the environment, and we will confirm the film and adhesive.

Get a quote or request samples: jason.zhan@bofmat.com

Related: PI Film Labels · PET Film Labels · PVC Film Labels