Specifications for a Quality Label for Paint, Lacquer and ... - Qualicoat

Appendicesg) Coating to be appliedQUALICOAT has decided to use only one colour, RAL 9010, for TGIC-free powder coating ofcategories 1 and 3. The system must have a QUALICOAT approval.h) Number of panelsAll the tests will be made in triplicate.i) LaboratoryAll the corrosion tests must be performed in 2 laboratories.j) Acceptable limits• Corrosion testsThe limits are the same as those prescribed in the QUALICOAT Specifications. Forevery test, 6 panels will be evaluated (3 panels in each of the two laboratoriesinvolved).The final evaluation will be as follows:Result of one laboratoryPOSITIVENEGATIVEResult of two laboratoriesNo or 1 unsatisfactory result2 or more unsatisfactory panels‣ If the results in both laboratories are positive, the system is satisfactory.‣ If the results in both laboratories are negative, the system is unsatisfactory.‣ If the results are positive in one laboratory and negative in the other, the tests mustbe repeated in a third laboratory.• Exposure testAfter 2 years of exposure, the final evaluation will be made, applying the followingcriteria:POSITIVENEGATIVENo or 1 unsatisfactory result2 or more unsatisfactory panelsSame criteria as to evaluate the acetic acid salt spray resistance test (max. length 4mm; corroded surface not exceeding 16 mm²/10 cm scratch length).No blistering in excess of 2 (S2) is accepted.11 th Edition - 60 - APPENDIX 6