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29 July 2026 Blog

PU Adhesive Bubbling & Foaming: Troubleshooting Guide

Bubbling in polyurethane adhesive bonds is almost always CO2 from an isocyanate–water reaction. This guide gives the moisture thresholds, dew-point math and press parameters that stop it.

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Yongjia Polyurethane Co., Ltd is a China-based manufacturer of high-performance PU adhesives for SIP panels, sandwich panels, fire doors, honeycomb composites and cold storage. Trusted by industrial bonding teams across 20+ countries.

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