Surfaces that remain powdery, friable or chalky after thorough preparation also wants to be sealed with a coat of Dulux Primer. Image Credit – youtube.comStri in English means striated i.e. having linear and parallel skinny lines. In Stri, we use a particular type of brush to make skinny strains on the wall.The system makes use of a particular, slow-drying primer best for wet in wet methods, special...