96 Repair & Renovation Guide PAINT Before painting • Walls and ceilings must be clean, free of dust, loose materials, nails, screws, and generally anything else that is foreign to the wall and ceiling surfaces. • Cracks, holes, bursts, blisters, all must be repaired before painting. Ultralight putty in paste form, a full range of filling pastes, and a number of DUROSTICK repair products, will untie your hands. • Moisture marks and fungi on the surfaces should be treated at their source. Find out what caused moisture in your premises and solve the problem before painting. Areas with high-temperature variations between the interior and the exterior environment, produce water vapor that causes problems in walls. Leaks from pipes, ingress of moisture or water from balcony doors or windows that are not thoroughly sealed at their junctions with walls, penthouses with insufficient or non-existent waterproofing of their roof or terrace. Wet areas with permanent moisture, such as bathrooms and kitchens with insufficient ventilation and low or no natural light, are some of the most common causes of moisture problems in the interior wall and ceiling surfaces of buildings. Priming The primers can be water or solvent-based. They are used where it is necessary to create excellent adhesion conditions between the substrate and the paint. They stabilize surfaces and balance their absorbency, which results in paint stability, the perfect performance of the chosen color, and the extension of its service life. In the end, primers contribute to the perfect finish image of the surface. The use of primer is mandatory and not optional when the surface is newly built or unpainted. The use of primer is also necessary, where the interior walls and ceilings have been repaired, skimmed or the existing paint is many years old. DUROSTICK has a number of suitable products for priming surfaces. For interior surfaces, choose water-based primers. They are practically odorless, dry quickly, and do not burden the environment and the user with the strong smell of the solvent. PREPARATION OF INTERIOR SURFACES
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