Saint-Gobain offers a full line of battery pack sealing options with products that range in material from FIP gasketing and silicone foam rubbers to butyl-coated PVC and micro-cellular PU foams. Seal batteries from the external environment with a low compression set and fire-blocking solution that ensures the protection of the battery pack.
Dynafoam® solvent-free products are single-component foam-in-place systems foamed by N2 injection and cured by atmospheric moisture under ambient conditions. Curing can be accelerated by providing additional humidity and temperature. Its thixotropic behavior enables application in any direction (even upside down).
Butyl-Coated PVC Foam
Norseal FR-BCF is an efficient and cost-effective solution to demanding EV battery pack sealing applications. It features a PVC foam core with an outer layer of butyl that has excellent adhesion and sealing ability. The outer butyl layer also exhibits intumescent characteristics, making it ideal for protection in case of a thermal event inside the battery pack. It has excellent water sealing performance that is equivalent/better than IPX7 performance.
In addition, Norseal Silicone Foams, Micro-cellular PU foam and fire-blocking FS1000 are also available for
pack sealing, catering to battery packs with different needs/demands.
Material Selection Guide
|Pack Seal||Silicone||F-Series||0.8 – 25.4||UL94 V-0||< 5%||Low compression set with extreme temperature capabilities||Smooth
2 sides, textured
|Polyurethane||PF Series||1.0 – 10.0||ASTM D4986
|< 10%||Low density & extremely thin pads with inherent tack||PET supported, lower tack levels|
|FS1000||4.5 – 13.0||UL94 V-0||< 5%||Intumescent, airtight, water-tight and resilient||Range of thicknesses|
|Dynafoam||–||–||< 20%||Single component, foam-in-place, good water seal||Range of densities|
|PVC/Butyl||FR-BCF||–||UL94 V-0||< 10%||Intumescent, excellent water sealability (IPX7), tacky||Different shapes and densities|
‡ Refer to individual datasheets for specific test conditions.