A measure of how well glass resists the release of soluble constituents when exposed to water under a specified test method.
GlassRenu · Educational illustration
Meaning and boundaries
Hydrolytic resistance is test-method-specific and is not a direct field rating for every façade exposure, cleaning chemical, or restoration process.
Why it matters in glass restoration
The concept explains why glass composition and water exposure affect alteration rates and why not all glasses respond identically.