Coating classification: special long-term heavy-duty anticorrosive coating for galvanized iron sheet

Core tip: Jane Introduction: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet is aimed at the defects of poor adhesion, weak weatherability and peeling off of the common anticorrosive coating (such as aluminum powder, iron red phenolic anticorrosive paint, aluminum powder alkyd paint, etc.) used for galvanized iron sheet The special film-forming assistant without chemical reaction with zinc is selected, and the weatherproof and anticorrosive rubber, special additive, pigment and filler and active diluent are added The special long-term heavy-duty anticorrosive coating for galvanized iron sheet is a new type of coating with excellent performance Features: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet has the following features: ① Special length of galvanized iron sheet Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Home of coatings news: Jane Introduction: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet is aimed at the defects of poor adhesion, weak weatherability and peeling off of the common anticorrosive coating (such as aluminum powder, iron red phenolic anticorrosive paint, aluminum powder alkyd paint, etc.) used for galvanized iron sheet The special film-forming assistant without chemical reaction with zinc is selected, and the weatherproof and anticorrosive rubber, special additive, pigment and filler and active diluent are added The special long-term heavy-duty anticorrosive coating for galvanized iron sheet is a new type of coating with excellent performance Features: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet has the following characteristics: ① the special long-term heavy-duty anticorrosive coating for galvanized iron sheet eliminates the chemical reaction between zinc and coating components Because the coating product does not contain inorganic acid and organic acid, the chemical and physical reaction between the coating and the zinc coating is eliminated, the chemical reaction between the dry oil or fatty acid in the coating or the formic acid and zinc produced in the aging process of the coating is eliminated, the white powdery corrosion is effectively prevented, and the service life of the galvanized iron sheet is greatly extended ② The special long-term heavy-duty anticorrosive coating for galvanized iron sheet improves the adhesion of the coating The coating product can react with the residual non dry oil on the surface of galvanized iron sheet, thus eliminating the adverse effect on the adhesion of the coating due to the incomplete oil on the surface of galvanized iron sheet In addition, the special base material of the coating has good adhesion with galvanized iron sheet, which greatly improves the anticorrosive performance of the coating ③ The long-term heavy-duty anticorrosive coating for galvanized iron sheet enhances the weather resistance of the coating The special film-forming agent and weather resistant rubber of the coating greatly improve the weather resistance of the coating and prolong the outdoor protection period Technical indicators: see the following table for the special long-term heavy-duty anticorrosive coating for galvanized iron sheet: technical indicators of the project: appearance of the top coat in the primer, purplish red purple brown, black viscosity (coating-4 cups) / s ≥ 60 ≥ 60 ≥ 60 solid content /% ≥ 75 ≥ 75 construction method: high pressure airless spraying, manual brushing, roller coating drying time (25 ℃, relative humidity 65 ± 5 %) / s surface dry ≤ 0.5 ≤ 0.5 ≤ 0.5 solid dry ≤ 24 ≤ 24 adhesion (cross cut method) / grade 2 comprehensive assessment of weather resistance (180 d) no blistering, rust, falling off 25% H2SO4 solution (25 ℃, 180 d) no blistering, rust, falling off 3% NaOH solution (25 ℃, 180 d) no blistering, rust, falling off 10% NaOH solution (25 ℃, 180 d) No foaming, rust, falling off, normal temperature and water resistance for 5 years, no change in the construction of composite coating: ① the preparation method is to thoroughly mix the coating to the bottom of the barrel without sediment If the ambient temperature is too low or the viscosity is too high, the special thinner for coating can be added appropriately, with the dosage of 3-5% ② The surface treatment shall be clean and dry without oil, rust and sundries When galvanizing steel plate, the treatment requirements are to thoroughly remove oil stains and sundries and ensure the surface is dry and clean ③ If the theoretical coating consumption does not consider the influence of the actual construction environment, coating method, coating technology, surface condition, structure, shape, surface area, etc., the general consumption of the special long-term heavy-duty anticorrosive coating for galvanized iron sheet is about 0.2kg/m2 ④ Coating thickness: high pressure airless spraying and airy spraying: the thickness of each dry film is about 95 μ m; manual painting: the thickness is about 90 μ M ⑤ Cleaning tools with special cleaning agent for coating tools or special diluent for coating ⑥ After finishing the last finishing coat in the coating curing period, the environment shall be self curing for 7-10 days when the temperature is above 10 ℃, and properly extended when the temperature is below 10 ℃ Scope of application: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet is applicable to the anticorrosive protection of indoor and outdoor galvanized iron sheet and its facilities, such as the roof built with galvanized iron sheet, the central air conditioning pipeline made of galvanized iron sheet, etc Storage and transportation: the special long-term heavy-duty anticorrosive coating for galvanized iron sheet shall be sealed and packed in iron barrel The special long-term heavy-duty anticorrosive coating for galvanized iron sheet is inflammable and shall be stored in a cool and dry place far away from the fire source The storage temperature shall not be higher than 40 ℃, and collision shall be avoided The validity period is one If it exceeds the validity, it can still be used after passing the re inspection 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,