Preparation procedures - Formation mechanisms - Solvent evaporation

3 important questions on Preparation procedures - Formation mechanisms - Solvent evaporation

How is solvent evaporation used as a film?

The solution can be sprayed on the product (most commonly used) or dip the product in the solution.
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What is the disadvantage of the solvent-based casting?

The solvent has to evaporate, a drying step is necessary. This costs energy, time and equipment. If the wetting of the solution to the product is not good, several spraying steps may be necessary, with all its consequences.
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Which method is not applicable when the product substrate is sensitive to moisture?

Solvent evaporation/solvent-based casting
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