Coating general knowledge: precautions for primer construction

Core tip: during primer construction, the following items shall be noted: ① In addition to strictly implementing the appropriate construction environment conditions, it is also necessary to dilute in strict accordance with the construction instructions, and it is not allowed to increase the dilution ratio at will For example, too much water is added, or the dilution viscosity is too low, so it is difficult to ensure the dry film thickness and sealing performance ② Ensure the reasonable construction recoating time, and generally guarantee the construction interval of 2-6h according to the climatic conditions ③ Other paint layers shall be constructed in time after primer construction ④ The principle of ensuring the adhesion between layers must be followed for product matching First, try to avoid dissolving in the construction of water-based 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 Paint Home News: during primer construction, attention shall be paid to the following matters: ① in addition to strictly implementing the appropriate construction environment conditions, it is also necessary to dilute in strict accordance with the construction instructions, and it is not allowed to increase the dilution ratio at will, such as adding too much water, or the dilution viscosity is too low, so it is difficult to guarantee the dry film thickness and sealing performance ② Ensure the reasonable construction recoating time, and generally guarantee the construction interval of 2-6h according to the climatic conditions ③ Other paint layers shall be constructed in time after primer construction ④ The principle of ensuring the adhesion between layers must be followed for product matching First of all, try to avoid the construction of solvent based finish in water-based primer, which will generally cause "undercut" phenomenon Especially when the solvent type top coat roller is applied on the transparent sealing primer, "undercut" is the most serious, and the primer will be damaged to a large extent In addition, it is also necessary to avoid applying emulsion paint on the two-component epoxy primer, so as to avoid the peeling phenomenon caused by the difficulty of adhesion of the top coat ⑤ the primer does not need to be polished, so as to avoid the phenomenon that the local primer layer is polished through due to grinding or excessive grinding 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,