It must be taken into account that the surface to be painted is clean, dry and free of grease, oil, dust and incoherent parts. In case of painting the old or previously painted surfaces, the non-cohesive or limestone parts should be removed before starting the paint. It is preferable to paint one side of Stop Sealer to ensure that there are no inconsistent parts, as it helps to stick strength, increase the individual and ease of use. One side shall be painted as the lining of Delta Acrylic 707 Arte + (it is preferred to paint it with the same color as the last face) The first face relieves of half matte arte after stirring the product well, by no more than 10%. Take into account that the time difference between the two sides is not less than 6 hours, and the more than that, the better.