Therm-A-Gap 174, 274 & 574 Filler Pads

Therm-A-Gap 174, 274 & 574 Filler Pads

THERM-A-GAP™ 174, 274, and 574 represent the original gap-fillers from Chomerics. These materials have gained broad acceptance across multiple applications from everyday consumer products to the most rigorous applications in military and aerospace electronics.


These products are available with aluminum foil “A” or on “clean break” glass fiber “G”. As with all previous Chomerics gap-fillers, the “A” versions come with a high strength pressure sensitive acrylic adhesive for permanent attachment to the cold surfaces. The clean break “G’” versions have no adhesive, but are inherently tacky. In addition, 174 and 274 are available with “T” backing, which is composed of a rigid, acryli PSA-backed thermal insulation pad. This option provides a 0.25 mm (0.010 in) thick, tear and puncture resistant dielectric layer.


  • Broad range of hardnesses available
  • Moldability for complex parts Good thermal performance
  • High tack surface reduces contact resistance
  • “T” version offers electrically insulating reinforcement with acrylic PSA
  • “A” version offers high strength PSA for permanent attachment
  • UL recognized V-0 flammability rating
  • RoHS compliant
  • Pass NASA outgassing (ASTM E595)


  • Desktop computers, laptops, servers
  • Telecommunications equipment
  • Consumer electronics
  • Automotive electronics
  • Motor and engine controllers
  • Cellular handsets
  • Power conversion
  • Memory modules
  • Heatpipe assemblies
  • Dual thermal / vibration dampening
  • Voltage regulators



  • Good thermal performance
  • Good moldability
  • Good conformability
  • Available with “T” dielectric backer


  • Good thermal performance
  • Excellent moldability
  • Moderate conformability
  • Available in ribbed configuration to reduce compressive forces
  • Available with “T” dielectric backer


  • Good thermal performance
  • Very low deflection force for low stress, high heat load applications
  • Most compliant



High temperature Gasket--Thermal Interface Materials--Therm-A-Gap 174, 274 & 574 Filler Pads 2


Download the Warranty

This warranty comprises the sole and entire warranty pertaining to items provided hereunder. seller makes no other warranty, guarantee, or representation of any kind whatsoever. All other warranties, including but not limited to, merchant ability and fitness for purpose, whether expressed, implied, or arising by operation of law, trade usage, or course of dealing are hereby disclaimed. Notwithstanding the foregoing, there are no warranties whatsoever on items built or acquired wholly or partially, to buyer’s designs or specifications. Limitation of remedy: Seller’s  Liability arising from or in any way connected with the items sold or this contract shall be limited exclusively to repair or replacement of the items sold or refund of the purchase price paid by buyer, at seller’s sole option. In no event shall seller be liable for any incidental, consequential or special damages of any kind or nature whatsoever, including but not limited to lost profits arising from or in any way connected with this agreement or items sold hereunder, whether alleged to arise from breach of contract, expressed or implied warranty, or in tort, including without limitation, negligence, failure to warn or strict liability.

Request a Free Quote

We will begin working on your RFQ and will provide updates on our progress.