I would like to identify which property or combination of properties of acids are most aggressive to an epoxy coating.
So my question is this, what properties of an acid do you consider significant in its ability to attack an epoxy coating. The following are the factors I think are important, if anybody can think of any more please add your suggestion....
Dissociation constant (pKa) - The strength of the acid.
Concentration - It makes sense that a 90% solution will do more damage than a 10% solution.
Temperature - Acids at higher temperatures cause more damage
Conjugate base - Is the conjugate aromatic, aliphatic or mineral.
Mobility - smaller molecules are better at penetrating the cross-linked epoxy
Functionality - How many acid groups are on the molecule, monoprotic, diprotic etc. (different pKa for each)
Physical state - Solid, liquid or gas
If you can think of any more factors I would appreciate your contribution.