Paint knowledge | main defects of emulsion paint coating: alkali weathering

Core tips: causes: · the existing powder was not removed when the base material was treated; the wall was too alkaline; the wall was not dried out or water seepage caused the pan alkali; the anti alkali primer was not used; the prevention method of poor alkali resistance of the coating: · the base material was thoroughly treated, the humidity of the base material was less than 10%, and the pH value was less than 10 ·Emulsion paint is not allowed to be applied on the base material with too strong alkalinity; use high-quality alkali resistant primer and finish paint Treatment method: · find and eliminate the source of water · remove the weathered materials, and reapply after using masonry putty and alkali resistant primer Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coatings: causes: · the existing powdered materials are not removed when the substrate is treated; the wall is too alkaline; the wall is not dry or water seepage causes alkali; the anti alkali primer is not used; the prevention method of poor alkali resistance of the coating: · the substrate is thoroughly treated, the humidity of the substrate is less than 10%, and the pH value is less than 10 ·Emulsion paint is not allowed to be applied on the base material with too strong alkalinity; use high-quality alkali resistant primer and finish paint Treatment method: · find and eliminate the source of moisture · remove the weathered materials, use the masonry putty and alkali resistant primer to recoat the paint The home is focused on the paint, diatom mud, paint coating, paint process, news information and coating of fire retardant coating, diatom mud, paint coating, paint process, decoration knowledge and decoration effect map of fire retardant coating,