English
IntroductionCorrosion problems often start quietly: moisture reaches a steel surface, salts accelerate the reaction, and a coating that looked intact begins to blister, crack, or lose adhesion.
IntroductionPolyester polyol is valued for strength, adhesion, and chemical resistance, but formulators often face practical limits: moisture aging, hydrolysis, high viscosity, brittle performance, or unstable processing.
IntroductionSelecting the wrong polyol can lead to unstable foam density, weak adhesion, cracking, shrinkage, or shorter product life—even when the equipment and formulation seem correct.
