Coating shall be examined for ashesion in between coats and for adhesion of the first coat to the substrate except for inorganic zinc silicate primer that have to be examined for curing in accordance with ASTM D4752 standard test method for measuring MEK resistance of silicate (inorganic)zinc rich primers by solvent rub otherwise specified
The adhesion pull off test shall be carried out at any location where there is evidence of any sort of failure in any coating including, but not limited to lifting of coats or loss of adhesion between layers in a system of coatings
the adhesion pull off test result shall be carried out in accordance with ASTM D 4551 Pull off test