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FASCAT® 4224 Catalyst
The FASCAT® 4224 catalyst, also known as dibutyltin bis(thioglyceride), is a transparent and lightly tinted liquid additive specifically designed for use in aqueous coatings and adhesives.
FASCAT® 4224 is a very selective polyurethane system proven to have hydrolytic stability. This makes it useful in aqueous coatings and adhesives. FASCAT® 4224 is particularly effective in situations where the adhesive or coating requires a prolonged period to remain in a liquid state but will rapidly solidify when exposed to high temperatures, such as in a hot mold or oven.
Specifications
Form: Liquid Color: Clear light CAS number: 68298-38-4 Formula: Bu2Sn(SC3H7O)2 Molecular weight: 447.2 Sn %: 26.2 Specific gravity (@ 25°C): 1.39 Melting point, °C: −22
Primary Chemistry: Dibutyltin bis(1-thioglyceride)
Features & Benefits
Insoluble in water and most hydrocarbons Miscible in acetone, methanol, and THF Clear to light-colored liquid Highly selective for polyurethane systems Hydrolytic stability for waterborne coatings and adhesives Long pot life at room temperature Quick cure at elevated temperatures
Problems Solved
Difficulty achieving hydrolytic stability with other catalysts
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