Which resins are suitable for electrophoresis coatings ?
There are but few such systems in actual use and these are accesible only through special licenses issued by major companies. Many formulations are contained in the patent literature.
Generally speaking, resins suitable for electrophoresis ( also called cataphoresis ) have primary, secondary or tertiary amino groups and a limited number of hydroxyl group along the polymer chain and have been neutralised with organic acids such as actic or lactic acid. They can be cured for example with blocked isocynates since the are basic character.