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The formation of Carbamate as a result of the reaction between amine groups of curing agents and H2O/ CO2 leaves the surface of the cured epoxy with some blurry lines and dots. the typical solutions like reducing the moisture and heating the environment and making the curing agent faster will work the issue, but as the problem, at hand, we want to formulate a curing agent which can work in lower temperatures with higher moisture content (above 50% humidity) without altering any of the characteristics of the original Hardener. What type of material can resist moisture or can reduce the formation rate of carbamate ? We are using "TETA" as the amine part of the formulation and using other amines at this point is not possible for the company.

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