Freeze-thaw stabilizers

Waterbased coatings have the inherent problem of the high free­zing point of water. When some waterbased systems are exposed to subzero temperatures, water will freeze, causing destabilization of the paint. To resolve the problem, anti-freezing agents are added to depress the freezing point of the water in paints, and are com­monly known as freeze-thaw stabilizers. Glycols are particularly effective for this purpose, and ethylene and propylene glycols have been widely used for years, though glycol ethers have also been successfully used. Coalescing solvents also decrease the freezing point of water and act as freeze-thaw stabilizers in addition to aiding coalescence.

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