BASF

Last updated January 31, 2026

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Multi-layer polymer substrate pretreatment: BASFRecent Research Landscape

Inter-layer mixing in 3-wet coating processes causes surface defects and poor appearance, which is mitigated by post-additization of basecoats to control structural viscosity. This engineering approach allows for low-temperature curing without sacrificing the aesthetic integrity of the multi-layer system.

What technical problems is BASF addressing in Multi-layer polymer substrate pretreatment?

Poor interlayer adhesion

(23)evidences

Slow drying and curing cycles in waterborne systems create production bottlenecks. Accelerating this process reduces energy consumption and increases throughput in industrial finishing.

Poor interfacial surface adhesion

(20)evidences

Exposure to humidity or water causes aesthetic degradation and opacity in polymer layers. Eliminating this failure mode ensures optical clarity and coating integrity in high-moisture environments.

Interlayer adhesion failure

(6)evidences

Low-solids aqueous basecoats often suffer from inadequate bonding to low-refractive index optical substrates. Resolving this failure mode prevents delamination and ensures structural integrity of multi-layer polymer stacks.