Coating site Supervisor (QC Inspector) Blasting, DFT, Holiday Testing. My name is Muhammad Tasadaq, a BGAS - CSWIP certified Painting & Coating Inspector with over six years of professional experience in protective coatings, blasting operations, supervision, and quality control inspection within oil & gas, piping, tanks, and pressure vessel projects. I am working in Dammam Rehibilation of RWTS