Folks, does anyone out there have info on whether Type AR conformal coating is compatible with Type UR.
 
I have been told that Type AR coating can be used to touch up (e.g. for cases where parts are being replaced) printed wiring assemblies that have cured Type UR coating applied but one cannot go the other way.  That is, you cannot use Type UR coatint to touch up assemblies that have cured Type AR coating applied as the UR coating will react with and dissolve the AR coating.  Is this correct?