Battery Tapes

Polyonics' halogen free UL94 VTM0 flame retardant black polyimide tape seals the battery case and prevents the propagation of fire.

Polyonics Battery Tapes

Polyonics polyimide tapes are dimensionally stable at high temperatures so they remaining intact during the numerous temperature cycles batteries experience. The tapes also insulate the batteries from external high temperature heat sources within the device. In addition, the halogen free (including bromine and chlorine free), flame retardant tapes prevent the propagation of fire.

Polyonics tapes include both single coated tapes for masking and double coated tapes for bonding and are REACH and RoHS compliant.

Polyonics flame retardant tapes are specifically designed composites that prevent the propagation of fire. Using FlameGard™ technologies, Polyonics combines several resins and polymers to provide flame retardant performance.

Thermal Degradation of polymers    

Heat causes thermal degradation of polymers within the battery which in turn generates flammable gasses (diagram at right). Burning occurs when the gasses combine with oxygen in the presence of an ignition source. The process then generates additional heat and gases creating a self-sustaining, run-away burn cycle.

Polyonics tapes insulate batteries and, when temperatures increase, produce a unique char layer that helps prevent the release of gasses and the propagation of fire.

The tapes include several PSAs with high adhesion strengths to fit small radii, a variety of colors and gloss values, high and low opacity and thicknesses starting at 41µm to fit even the most compact smart phone or tablet designs.

To learn more about these unique engineered tapes, call our technical experts at (603)352-1415 or request information

Product Selection

Click on name to download technical bulletin.

iTape Store Logo Smaller quantities (9" x 36 yds) of select Polyonics tapes are available online and can be slit to desired widths at . Click icon under part number to learn more.

Tape Acrylic
Antistatic Temp.
iTape Store Logo
Single 25µm (1 mil) 50µm (2 mil) No 300°C Amber/Low
XT-625 Single 50µm (2 mil) 75µm (3 mil) No 300°C Amber/Low
XT-626 Single 25µm (1 mil) 50µm (2 mil) Yes 150°C Amber/Low
iTape Store Logo
Double 25µm (1 mil) 75µm (3 mil) Yes 300°C Amber/Low


  • SCK: Super Calendered Kraft liner.
  • PET: Polyester or Fluorinated Polyester (silicone PSA) liners.
  • MOQ: 9” x 1640’ (for single coated tapes)
    and 9” x 1000’ (for aluminum and double-coated, silicone and LSE PSA tapes)
  • All tapes are REACH and RoHS compliant
  • Flame retardant tapes are not recognized by UL but have been tested to the UL94 standard by Polyonics.
  • The surface on which the tape is to be applied whould be clean, dry and free of any surface contaminations, such as dust, oil or rust, isopropyl alcohol would be a recommended solvent to clean the surface.
RoHS compliant

To learn more about these unique engineered tapes, call our technical experts at (603)352-1415 or request information

Design Features

  • 13µm, 25µm and 50µm thick polyimide films
  • Amber, matte black and semi-gloss black colors
  • High strength flame retardant acrylic PSA's form-fit tight radii
  • Thin conformal bond lines
  • Dimensionally stable at high temperatures (diagram left)
  • Chemically resistant
  • High dielectric strength >3.5kv/mil (>137kv/mm)
  • Tested to UL94 VTM0, FAR 25,853, BSS 7238/7239
  • Halogen-free REACH and RoHS compliant
  • Variety of liners for die cutting and auto apply
  • Ultra-thin constructions



  • Thermal management
  • Insulate, isolate and wrap batteries to protect from external heat sources
  • Insulate battery electrical connectors
  • Bundle battery packs
  • Seal battery cases


  • High temperature bonding system that prevents the propagation of fire
  • Attaches batteries and components to chassis, boards, etc.

Flame Retardant

  • Prevents the propagation of fire
  • Adds no fuel to burn cycle
  • Halogen free
  • Meets UL94 VTM0


  • Aerospace, EV, medical device, storage, packs, hand tools, etc.


  • Smart phones, tablets, laptops, games, monitors (TV), etc.

Design Requirements

Today’s batteries provide high energy and capacity, but at the risk of low thermal run-away temperatures (<150C). A thermal run-away results from many causes that can produce flammable gases and lead to fire and/or explosion.

Thermal management is the key to optimal battery performance. High temperature, flame retardant tapes offer a proven, economical method to provide this management by insulating batteries from adjacent components and/or additional batteries and reducing the risk of fire.

battery tape for electronics


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Polyonics Introduces Engineered Tapes and Label Materials That Protect Static Sensitive Optoelectronic Devices from Harmful ESD Events
Polyonics makes antistatic tapes and label materials with static dissipative surface resistances and low tribocharging pressure sensitive adhesives (PSA) that allow them to protect static sensitive optoelectronic devices such as LEDs, photo and laser diodes, solar cells, etc. and help prevent harmful electrostatic discharge (ESD) events.

Polyonics Announces Expanded Antistatic Tape Product Line:
New Materials, Thinner Constructions, New Coatings and New PSAs Polyonics has recently expanded its antistatic tape and film portfolio to include a wider variety of single and double coated amber and black polyimide and clear and white polyester (PET) constructions. New thinner 40 µm (1.6 mil) antistatic tapes and 13 µm (0.5 mil) antistatic films have also been added for space constrained applications with specially developed matte black coatings available to match specific color and gloss specifications.

Polyonics Introduces High Temperature Bonding Systems for Static Sensitive Devices
Westmoreland, NH (PRWEB) —Polyonics has introduced a series of double-coated tapes that are designed to protect SSD (static sensitive devices). The tapes are well suited for SMT (surface mount technology) applications and provide a strong, thin conformal bond line while generating a very low peel voltage.

Polyonics, Inc.

28 Industrial Park Drive
Westmoreland N.H. 03467
Ph: +1.603.352.1415
Fax: +1.603.352.1936
Email: [email protected]

Polyonics products are intended for industrial use only

© 2015 Polyonics, Inc. All right reserved. webmail

Polyonics, Inc.

Rm. 1804 Gaosheng Commercial Mansion
HongTu Rd. Nancheng
Dongguan, Guangdong, China 523082
Phone: 86.755.8825.0441
Fax: 86.755.8825.2429
Email: [email protected]