Tflex™ CR350

Tflex™ CR350

Two Part Liquid Dispensable Gap Filler

Tflex™ CR350 is a soft, compliant, high thermal conductivity, two-part dispensable gap filler providing a low thermal resistance and high reliability. This dispensable gap filler minimizes stress on components during assembly while providing the reliability of a traditional thermal pad. Tflex™ CR350 is ideal for application where large gap tolerances are present, meeting vertical shock and vibe requirements, typical of the automotive industry. The 1:1 mix is easily dispensable through a wide variety of off the shelve dispensing equipment. It is an A+B putty material that cures in place after dispensing and mixing to perfectly fill the gap. The experts at Laird can help design the system that is right for you

Features and Benefits

  • Thermal Conductivity 3.6W/mK
  • Dispensable and Compliant
  • Easily reworkable
  • Ideal for large gaps
  • Environmentally friendly solution that meets regulatory requirements


Automated PackagingAutomated Pad PlacementCustom AutomationCustom Product DevelopmentModelingPrototypingServiceTesting


Last Updated: 04/11/21

Technical Specification

Typical PropertiesColorPink/White
Density (g/cc)3.20
Minimum Bondline Thickness (microns)85
Minimum Bondline Thickness (mm)0.09
Operating Temperature Max (Celsius)200
Operating Temperature Min (Celsius)-55
Outgassing CVCM (%)0.040
Outgassing TML (%)0.580
Shelf Life9 months
Thermal PropertiesThermal Conductivity (W/mK)3.60
Electrical PropertiesVolume Resistivity 2.60 x10^14 Ohm-cm
Mechanical PropertiesHardness (Shore 00)69
Viscosity (cP)350000
ComplianceROHS CompliantYes
UL Flammability RatingV-0




Automotive ElectronicsAutomotive Powertrain/ECUs