Unsealed structural cavities allow noise transmission and smoke propagation during fire events. Effective sealing prevents environmental intrusion and enhances passenger safety.

Non-uniform heating during expansion leads to structural voids and poor cavity sealing. Achieving volumetric thermal consistency ensures predictable structural reinforcement and acoustic insulation.

Standard cavity sealants often contribute significant mass to the vehicle body. Reducing filler weight while maintaining expansion properties minimizes overall vehicle mass and improves fuel efficiency.

Unsealed structural voids allow noise transmission and heat transfer into the passenger cabin. Eliminating these pathways improves vehicle refinement and energy efficiency.

Unfilled voids in vehicle frames allow noise, vibration, and moisture ingress. Effective expansion into complex geometries prevents structural degradation and improves cabin acoustics.