i am new to lime but what ive researched about certain lime based venetian plasters or tadelact is that they used a Quartz primer on the walls for proper adhesion . what type of pozzolans do you use Kristen and do u know where to get a high calcium lime putty for what iam experiencing with dolimes high in magnesium theres effloressence which is no prob with lighter pigments but not when i want a darker venetian plaster. Black or dark reds thanks