Norseal PF & silicone EV foams ensure a stable compression force deflection (CFD) over a wide range of compression rates. This makes it possible to compensate for battery cells' expansion and design tolerances. Over battery's lifetime the Norseal foam maintains their properties (very low compression-set and high resiliency), even under extreme conditions of temperature and compressive force. With those properties, they are able to maintain an optimal range of pressure on cells and maintain thermal contact between cells and heat sink.
Moreover, PF & silicone EV Series protects your cells against shocks and vibrations, increasing the battery pack safety. They are standard products whose properties (like CFD behavior) can be adapted to your design and technical requirements. If you need a flame retardant interface, Norseal silicone EV foams are listed to UL94 V0.