Common knowledge of coating: what practical methods can be used to identify when purchasing fire retardant coating

Core tip: in order to facilitate people's purchase of fire retardant coating, introduce some identification methods of fire retardant coating to you The appearance of fire-retardant coating is very similar to that of common coating, which is difficult to distinguish from appearance, and it is also difficult to check the quality of fire-retardant coating on site In the actual project, the fire supervision departments at all levels can distinguish by the following methods: (1) check whether the product has the qualified inspection report issued by the national fire quality inspection center, or query online At present, the type approval system of fire-fighting products is implemented for fire-fighting coatings The fire-fighting coatings sold on the market should have the national fire-fighting system 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 Coating home news: in order to facilitate people to buy fire retardant coating, introduce some identification methods of fire retardant coating to you The appearance of fire retardant coating is very similar to that of common paint, which is difficult to distinguish from the appearance, and it is also difficult to check the quality of fire retardant coating on site In the actual project, the fire supervision departments at all levels can distinguish by the following methods: (1) check whether the product has the qualified inspection report issued by the national fire quality inspection center, or query online At present, the type approval system of fire-fighting products is implemented for fire-fighting coatings The fire-fighting coatings sold on the market shall have the national fire-fighting product type approval certificate and type inspection qualification report (2) According to the national standard, in addition to meeting the requirements of fire resistance, the combustion performance of fire retardant coating is divided into two levels Under the specified experimental conditions, the fire resistance time of the first level fire retardant coating shall not be less than 20 minutes, and the heat resistance time of the second level fire retardant coating shall not be less than 10 minutes Users should pay attention to distinguish when choosing, to avoid that enterprises can not achieve the effect of fire protection (3) It is understood that at present, the cost price of the fire-proof coating produced by domestic enterprises with the fire-proof performance reaching the second level is more than 8000 yuan / ton If the sales price is lower than this, the quality is worrying (4) The on-site construction of fire-retardant coating shall be subject to the manufacturer's product outer packing instructions Generally, it does not need to be diluted with water The coating shall be carried out in two or more times, and the coating amount shall not be less than 500g / m2 When the fire-proof coating is diluted with water or the amount of coating is not enough, it will have a great impact on its fire-proof performance The fire department should strengthen the supervision of the construction site to prevent the construction enterprise from Jerry building (5) When the qualified fire retardant coating is burned by strong fire such as blowtorch, it will foam and expand a lot, the surface will gather and bulge, and there will be no burning loss within a few minutes, while the fake and inferior fire retardant coating will not foam basically, there will be a lot of scattered slag, and the wood base material will also burn and damage quickly (6) If possible, the quality of the products can also be preliminarily inspected on site: cut 2-3 small samples on the constructed base material, or apply a small amount of samples on 2-3 150 mm × 150 mm plywood, and apply according to the actual construction situation After drying out, use the flame of alcohol lamp to check The flame height is about 40mm, and the time of applying flame is generally 20min Check the foaming of coating Under normal circumstances, the construction shall be carried out according to the specified amount (generally 500g / m2) The thickness of the foam layer of the first level fire retardant coating is more than 20mm, and that of the second level fire retardant coating is more than 10mm The foam layer shall be uniform and dense (7) In practical use, in order to ensure the fireproof and other performance of fire retardant coating, transparent coating is generally required The consumption of fireproof coating is generally 350-500g / m2, and the consumption of covering coating is generally 50g / m2 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,