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Tflex SF4 is an innovative, high performing thermal material in Laird’s silicone free gap filler portfolio. The silicone free technology provides products with excellent deflection properties, providing minimal pressure on components during deflection. Very little pressure is required to reach the lowest possible thermal resistance. Thickness ranges from 0.5mm (0.020″) to 4mm (0.160″) in 0.5mm (0.020″) increments available as standard.
– Silicone Free formulation
– Low Peak and Residual Pressure
– Excellent surface wetting for low contact resistance
– Low Thermal Resistance
– UL V0 Flammability Rating
– Environmentally friendly solution that meets regulatory requirements including RoHS and REACH
| Colour | Grey |
| Shelf Life | 2 years from Date of Shipment |
| Thickness Max | 4.00 mm (2.40") |
| Thickness Min | 0.50 mm (0.20") |
| Density | 3.10 g/cc |
| Hardness | 40 Shore 00 |
| Thermal conductivity | 4.00 W/mK |
| Maximum Operating Temperature | 125°C |
| Minimum Operating Temperature | -65°C |
| Thermal Resistance @10 psi Max (C-in²/W) | 1.22 |
| Thermal Resistance @10 psi Min (C-in2/W) | 1.14 |
| Thermal Resistance @30 psi Max (C-in2/W) | 1.18 |
| Thermal Resistance @30 psi Min (C-in2/W) | 1.10 |
| Thermal Resistance @Thermal Resistance @50 psi Max (C-in2/W) | 1.14 |
| Thermal Resistance @50 psi Min (C-in2/W) | 1.07 |
| UL Flamming Rating | V-0 |
| Volumic resistivity | 5 x 10^13 Ohm-cm |
| ROHS Compliant | Yes |
| Lead Free | Yes |
| REACH | Yes |
The Tflex™ SF4 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 |
|---|---|---|
 | A18841-16 | Tflex SF4,4.00 229mm x 229mm |
| A18841-15 | Tflex SF4,3.75 229mm x 229mm | |
| A18841-14 | Tflex SF4,3.50 229mm x 229mm | |
| A18841-13 | Tflex SF4,3.25 229mm x 229mm | |
| A18841-12 | Tflex SF4,3.00 229mm x 229mm | |
| A18841-11 | Tflex SF4,2.75 229mm x 229mm | |
| A18841-10 | Tflex SF4,2.50 229mm x 229mm | |
| A18841-09 | Tflex SF4,2.25 229mm x 229mm | |
| A18841-08 | Tflex SF4,2.00 229mm x 229mm | |
| A18841-07 | Tflex SF4,1.75 229mm x 229mm | |
| A18841-06 | Tflex SF4,1.50 229mm x 229mm | |
| A18841-05 | Tflex SF4,1.25 229mm x 229mm | |
| A18841-04 | Tflex SF4,1.00 229mm x 229mm | |
| A18841-03 | Tflex SF4,0.75 229mm x 229mm | |
| A18841-02 | Tflex SF4,0.50 229mm x 229mm | |
| A18840-16 | Tflex SF4,4.00 457mm x 457mm | |
| A18840-15 | Tflex SF4,3.75 457mm x 457mm | |
| A18840-14 | Tflex SF4,3.50 457mm x 457mm | |
| A18840-13 | Tflex SF4,3.25 457mm x 457mm | |
| A18840-12 | Tflex SF4,3.00 457mm x 457mm | |
| A18840-11 | Tflex SF4,2.75 457mm x 457mm | |
| A18840-10 | Tflex SF4,2.50 457mm x 457mm | |
| A18840-09 | Tflex SF4,2.25 457mm x 457mm | |
| A18840-08 | Tflex SF4,2.00 457mm x 457mm | |
| A18840-07 | Tflex SF4,1.75 457mm x 457mm | |
| A18840-06 | Tflex SF4,1.50 457mm x 457mm | |
| A18840-05 | Tflex SF4,1.25 457mm x 457mm | |
| A18840-04 | Tflex SF4,1.00 457mm x 457mm | |
| A18840-03 | Tflex SF4,0.75 457mm x 457mm | |
| A18840-02 | Tflex SF4,0.50 457mm x 457mm |
Interested in learning more about how the Tflex™ SF4 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™ SF4 can bring added value to your design and performance requirements.
The information and technical data provided on this website are for general informational purposes only. While we strive to ensure that all content is accurate, complete, and up to date, we make no representations or warranties of any kind, express or implied, regarding the reliability, suitability, or availability of the information contained herein.
Any reliance you place on such information is strictly at your own risk. We disclaim any liability for errors, inaccuracies, or omissions and for any loss, injury, or damages resulting from the use of the information provided.
Technical specifications, data, or figures may be subject to change without notice. For official, detailed, or binding information, please contact us directly.
