Nowadays, the world changes at an incredible pace. New electronics come out every day with potential. With all of these hot electronics, there is usually a requirement for a material to transfer the heat out of the application. Unfortunately, many of the thermally conductive pads that available are binded with silicone. This can be a problem to some applications because silicone can be a real nuisance. These problems mainly have to do with the spread of silicone throughout the application the pad is going into, usually preventing adequate bonding to substrates. Silicone can be incredibly difficult to remove once in an application, even with tough solvents. For this reason, Bergquist Company has come up with several alternatives for applications that are sensitive to silicone.
These pads offered by Bergquist carrying the SF label (for “silicone-free”) are similar to the other Gap Pads in the properties they offer, such as great conformability, thermal conductivity, and electrical isolation. One may think that when giving up the silicone polymer, they would also be giving up all of the properties they like about silicone. While that may be true about some properties such as temperature range, it is not a totally fair characterization. These pads still feature great flame resistance (all UL 94V0), and great dielectric strengths. Below are some of the Gap Pads offered by Bergquist, with their different reinforcements and thermal conductivities.
- Gap Pad 2200SF-fiberglass-2 W/m-K
- Gap Pad 1000SF-fiberglass-0.9 W/m-K
- Gap Pad 2000SF-fiberglass-2.0 W/m-K
- Gap Pad 2202SF-pet- 2.0 W/m-K
- Gap Pad 3004SF-pet-3.0 W/m-K
Some applications of these silicone-free products include hard-drive disks, optical applications, laser optics, medical devices, and automotive modules. NEDC converts these silicone-free Gap Pad options through die-cutting and waterjet cutting. If you have an application that requires a silicone-free Gap Pad option, or if you have a question about silicone-free materials, please contact firstname.lastname@example.org.