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Sika

Last updated February 10, 2026
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Two-component polyurethane elastomer network: SikaRecent Research Landscape

Premature curing and pigment instability in high-performance coatings lead to short shelf lives and application defects. Engineering ketone-functional crosslinking sites within the polyurethane backbone extends the processing window while maintaining final mechanical strength.

What technical problems is Sika addressing in Two-component polyurethane elastomer network?

Environmental degradation and discoloration

(10)evidences

Premature reaction or settling in pigmented aqueous dispersions leads to short shelf life and inconsistent application. Improving stability prevents viscosity spikes and phase separation in stored formulations.

Inadequate processing window

(4)evidences

The inherent trade-off between rapid structural strength development and sufficient application window. Resolving this allows for high-throughput manufacturing without premature material hardening.

Low temperature brittleness

(1)evidences

Standard (meth)acrylate compositions suffer from brittleness and bond failure when exposed to cold environments. Resolving this ensures mechanical integrity and prevents delamination on polymer surfaces under thermal stress.