Coating technology: inspection method for water impermeability of waterproof coating

Core tip: under certain conditions, the instrument is used for testing The method is to prepare the coating according to the proportion, brush the coating on the glass plate several times (wax the glass plate first), the thickness is 1.5mm, put it in the oven for 7 days, then put it in the oven for 24 hours at 50 ℃? ℃, take it out and put it for 3 hours, do the water impermeability test If the water impermeability is 0.3MPa, it is qualified if there is no leakage for 30 minutes If the conditions are not available, visual inspection can be used to check the waterproof effect The method is to brush the coating on the non-woven fabric 46 times After it is completely dry (about 24 hours, the film thickness is 1.21.5mm, making it into a slow box shape and hanging empty 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 Paint Home News: under certain conditions, the application of instrument detection, the method is to mix the paint according to the proportion, brush on the glass plate several times (the glass plate is waxed first), the thickness is 1.5mm, put it in the oven for 7 days, then put it in the oven at 50 ℃? ℃ for 24 hours, take it out and put it in the oven for 3 hours, do the water impermeability test, the water impermeability is 0.3MPa, 30 minutes without leakage is qualified If the conditions are not met, visual inspection can be used to check the waterproof effect The method is to brush the coating on the non-woven fabric 46 times After it dries completely (about 24 hours, the film thickness is 1.21.5 mm, which is made into a slow box shape and hoisted empty, but no dead angle is allowed Then add 1% alkali water into the box If there is no leakage in 24 hours, it is qualified Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,