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Tflex™ SF10
Silicone Free Thermal Gap Filler
Tflex SF10 is an innovative high performing thermal material in Laird’s gap filler portfolio. The silicone free material measures 10 W/mk and has excellent deflection properties which provides minimal pressure on components. Very little pressure is required to reach the lowest possible thermal resistance.
Features and Benefits
– Silicone free formulation
– Low Shore Hardness
– Low pressure versus deflection
– Minimizes board and component stress
– No fiberglass reinforcement
– Environmentally friendly solution that meets regulatory requirements including RoHS and REACH
Examples or main applications
– Automotive ADAS
– Automotive Powertrain/ECUs
– Automotive Infotainment
– Routers
– Hard Disk Drives
– Solid State Drives
– Wireless infrastructure
– Drones/Satellites
– Gaming Systems
– Smart Home Devices
– Notebooks/Tablets/Portable Devices
Properties
| Colour | Grey |
| Shelf Life | 2 years from Date of Shipment |
| Reinforcement Carrier | none |
| Thickness Max | 5.00 mm (3.20") |
| Thickness Min | 0.50 mm (0.20") |
| Density | 4.10 g/cc |
| Hardness | 41 Shore 00 |
| Thermal conductivity | 10.20 W/mK |
| Maximum Operating Temperature | 125°C |
| Minimum Operating Temperature | -40°C |
| Thermal Resistance @10 psi Max (C-in²/W) | 10.43 |
| Thermal Resistance @10 psi Min (C-in2/W) | 0.54 |
| Thermal Resistance @30 psi Max (C-in2/W) | 0.43 |
| Thermal Resistance @30 psi Min (C-in2/W) | 0.41 |
| Thermal Resistance @Thermal Resistance @50 psi Max (C-in2/W) | 0.42 |
| Thermal Resistance @50 psi Min (C-in2/W) | 0.39 |
| UL Flamming Rating | V-0 pending |
| Outgassing TML | 5.30% |
| Outgassing CVCM | 2.30% |
| Volumic resistivity | 1 x 10^14 Ohm-cm |
| Dielectric constant | 9.00 |
| ROHS Compliant | Yes |
| Lead Free | Yes |
| REACH | Yes |
Product variants
The Tflex™ SF10 are available in a range of variants designed to meet specific application needs. These versions differ in format, construction, or additional features, providing flexibility in design and optimal compatibility with various systems and assembly processes.
| Image | Code | Detail |
|---|---|---|
![]() | A18213-02 | Tflex SF10; 0.50 229x229mm |
| A18213-03 | Tflex SF10; 0.75 229x229mm | |
| A18213-04 | Tflex SF10; 1.00 229x229mm | |
| A18213-05 | Tflex SF10; 1.25 229x229mm | |
| A18213-06 | Tflex SF10; 1.50 229x229mm | |
| A18213-07 | Tflex SF10; 1.75 229x229mm | |
| A18213-08 | Tflex SF10; 2.00 229x229mm | |
| A18213-09 | Tflex SF10; 2.25 229x229mm | |
| A18213-10 | Tflex SF10; 2.50 229x229mm | |
| A18213-11 | Tflex SF10; 2.75 229x229mm | |
| A18213-12 | Tflex SF10; 3.00 229x229mm | |
| A18213-13 | Tflex SF10; 3.25 229x229mm | |
| A18213-14 | Tflex SF10; 3.50 229x229mm | |
| A18213-15 | Tflex SF10; 3.75 229x229mm | |
| A18213-16 | Tflex SF10; 4.00 229x229mm | |
| A18213-17 | Tflex SF10,4.25mm 229x229mm | |
| A18213-18 | Tflex SF10; 4.50 229x229mm | |
| A18213-19 | Tflex SF10,4.75 229x229mm | |
| A18213-20 | Tflex SF10; 5.00 229x229mm | |
| A18237-06 | Tflex SF10DF; 1.50 457x457mm | |
| A18238-02 | Tflex SF10DF; 0.50 229x229mm | |
| A18238-03 | Tflex SF10DF; 0.75 229x229mm | |
| A18238-04 | Tflex SF10DF; 1.00 229x229mm | |
| A18238-05 | Tflex SF10DF; 1.25 229x229mm | |
| A18238-06 | Tflex SF10DF; 1.50 229x229mm |
Capabilities & customisation
Industries

General Catalogue
Request information
Interested in learning more about how the Tflex™ SF10 can support your project or application? Whether you need technical details, pricing information, or would like to request a sample, our team is here to help. Fill out the form below and we’ll get back to you with the support and solutions you need. Discover how the Tflex™ SF10 can bring added value to your design and performance requirements.
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