Coating classification: hydrofluoric acid resistant anticorrosive coating

Core tip: brief introduction: hydrofluoric acid resistant anti-corrosion coating is made of interpenetrating network polymer mainly composed of inorganic polymer as film-forming material The coating filler is made of phenolic resin, barite, nano chromium powder, anti medium solid filler, etc., with appropriate pigments, solvents, additives, etc and added with wear-resistant enhancer Hydrofluoric acid resistant anticorrosive coating is a new type of coating with excellent performance Features: hydrofluoric acid resistant anticorrosive coating features as follows: ① The coating of hydrofluoric acid resistant anticorrosive coating is compact and stable, resistant to strong acid, especially hydrofluoric acid (HF); ② Hydrofluoric acid resistant anticorrosive coating is composed of many kinds Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Introduction: hydrofluoric acid resistant anti-corrosion coating is a kind of interpenetrating network polymer mainly composed of inorganic polymer as film-forming material The coating filler is made of phenolic resin, barite, nano chromium powder, anti medium solid filler, etc., with appropriate pigments, solvents, additives, etc and added with wear-resistant reinforcing agent Hydrofluoric acid resistant anticorrosive coating is a new type of coating with excellent performance Features: hydrofluoric acid resistant anti-corrosion coating features as follows: ① the coating of hydrofluoric acid resistant anti-corrosion coating is compact and stable, with good corrosion resistance to strong acid, especially hydrofluoric acid (HF); ② Hydrofluoric acid resistant anti-corrosion coating is composed of functional fillers composed of various components, which endow the coating with the anti-corrosion performance of hydrofluoric acid, enhance the adhesion of the coating, and overcome the internal stress caused by the curing volume shrinkage of the coating Hydrofluoric acid resistant anti-corrosion coating is composed of different types of polymers, inorganic organic polymers formed by interpenetrating network technology, which cooperate with each other to make the coating more flat and saturated Technical indicators: see the following table for the technical indicators of hydrofluoric acid resistant anticorrosive coating: project technical indicator density / (g / cm3) 1.8 fineness / μ m ≤ 80 temperature tolerance range / ℃ ≤ 150 solid content /% ≤ 75 drying time (25 ± 1 ℃) / h surface drying ≤ 12 solid drying ≤ 72 adhesion / level 2 film impact strength / J ≥ 3.9 film appearance leveling film hardness / h 4-5 Coating sand falling and abrasion resistance test L / μ m ≥ 1 acid resistance 50% HF immersion 300 D coating unchanged 5% HF immersion 100 D 5% HF fumigation 100 D performance requirements: ① HF anticorrosive coating has the temperature matching with the base material linear expansion coefficient, which will not damage the coating due to internal stress or thermal stress; ② Hydrofluoric acid resistant anticorrosive coating has good adhesion with the base material to ensure that the coating is not easy to fall off; ③ hydrofluoric acid resistant anticorrosive coating can withstand the vibration and impact during the operation of the equipment; ④ hydrofluoric acid resistant anticorrosive coating has long service life, good durability, and the damaged coating can be easily repaired Construction: before base material treatment and coating, oil stain, residual rust, oxide skin, etc on the surface of base material shall be removed ① It is recommended to use water-based cleaning agent with moderate alkalinity to remove oil stains, and then wash them with clean water; ② all steel surfaces to be coated must be shot blasted or sandblasted to meet the requirements of Sa2.5, and the steel surface must be polished to ST3 when the coating is partially repaired; ③ During shot blasting, sand blasting and after construction, the steel surface must be free from grease re contamination The compressed air used for sand blasting must be equipped with oil-water separator with good performance The steel after rust removal must be strictly free from grease re contamination The quality inspectors and coating constructors shall not wear greasy work shoes, work clothes and gloves to inspect the quality of the uncoated steel structure Coating construction; ④ the surface roughness shall be controlled within 25-40 μ M Mixing ① ratio: main agent: curing agent = 2:1 (weight ratio); ② when mixing, the main agent shall be stirred continuously, and the curing agent shall be poured in slowly; ③ after mixing, the mixed coating shall be filtered with 40 mesh screen, and poured into another container It is required to continuously and slowly mix to keep the paint in suspension; ④ the validity period of the mixed paint is 4 hours, and the use shall be arranged according to the construction schedule The spraying operation shall be carried out as soon as possible after sand blasting and derusting, generally no more than 8 hours The steel surface temperature and ambient temperature are generally not lower than 10 ℃ Ø precautions ① the coating product can be applied by brush, airless spray and air assisted spray; ② it is recommended to apply the coating for three times, the thickness of the first time is less than 100 μ m, and the total thickness is controlled at about 300 μ m; ③ the coating shall be continued after the surface of the first coating is dry until the specified thickness; ④ after the coating is applied, the coating can be used after it is dry for more than 72 hours 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,