Sika

Last updated February 10, 2026

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Expandable structural reinforcement inserts: SikaRecent Research Landscape

Structural integrity in hollow body cavities is compromised by vibration and acoustic leakage. These inserts utilize controlled expansion to seal and stiffen internal geometries for improved crashworthiness and NVH performance.

What technical problems is Sika addressing in Expandable structural reinforcement inserts?

Structural cavity collapse

(7)evidences

Vehicle frame cavities are prone to buckling and deformation under mechanical stress. Preventing structural collapse during impact improves passenger safety and vehicle rigidity.

Structural cavity integrity failure

(5)evidences

Structural voids and openings allow for the uncontrolled passage of noise, vibrations, and fluids. Mitigating these transmission paths prevents acoustic degradation and environmental leakage in hollow assemblies.