Amino Silane Coupling Agent Crosile® 792 Mar 21, 2024

Crosile® 792 Aminoethylaminopropyltrimethoxysilane can be applied from water or organic solvent solutions or added directly to the blending resin. It mixes well with water and alcohols and is moderately soluble in aromatic solvents. However, its solubility in aliphatic solvents is low.

Crosile® 792 polymerizes in water, so solutions should be prepared just before use. To prevent gelation, add the silane to water rather than the reverse. Adjusting the pH of the aqueous solution to around 4 with acetic acid can improve solution stability. Dilute solutions in organic solvents are also possible, with alcohols and aromatic solvents being the most suitable. However, avoid using aldehydes, ketones, acids, esters, and alkyl chlorides. Solutions containing water in organic solvents will only slightly enhance stability compared to water solutions of the silane.

Crosile® 792 Trimethoxy[3-[(2-aminoethyl)amino]propyl]silane will cure effectively under typical high-temperature cycles used for curing most thermosetting resins. Proper curing usually occurs during the curing or molding of resin/glass laminates. For fabric or surface treatments, drying the silane is usually sufficient for effectiveness. However, for optimal performance, curing for 3 to 5 minutes at 130°C or higher is recommended. Exposure to temperatures above 130°C at some processing stage is crucial for developing maximum moisture resistance.

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