Paint knowledge: exterior wall coating construction scheme

Core tips: construction scheme of external wall elastic coating (I) 1 Surface treatment: check the wall, deal with floating sand, hollowing, cracking and other phenomena, detect the DH value of the wall, and ensure that the DH value of the wall meets the requirements 2 Special putty for exterior wall: it has super-high strength adhesion and good hardness and toughness 3 Lay alkali resistant glass fiber mesh: lay alkali resistant glass fiber mesh in the middle of special putty for external wall to enhance its tensile strength (alkali resistant glass fiber mesh is a kind of high-strength, alkali resistant and similar glass fiber mesh with thickness of about 0.28cm refined by chemical fiber after modification, which is mainly used for 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: construction scheme of elastic coating for exterior wall (I) 1 Surface treatment: check the wall, deal with floating sand, hollowing, cracking and other phenomena, detect the DH value of the wall, and ensure that the DH value of the wall meets the requirements 2 Special putty for exterior wall: it has super-high strength adhesion and good hardness and toughness 3 Lay alkali resistant glass fiber mesh: lay alkali resistant glass fiber mesh in the middle of special putty for external wall to enhance its tensile strength (alkali resistant glass fiber mesh is a kind of high-strength, alkali resistant and similar glass fiber mesh with thickness of about 0.28cm refined by chemical fiber after modification, and its main function is to prevent coating cracking, peeling and enhance tensile stability) 4 External wall grinding: polish the putty surface until the surface is flat 5 One coat of exterior wall primer: it has good alkali resistance function, so that the putty layer can avoid the phenomenon of alkali return and blooming to the maximum extent 6 Two coats of elastic exterior wall coating: it has excellent elasticity, can resist and cover the subtle cracks of the wall, and provides effective protection for the wall 7 The coating manufacturer of this scheme can provide five years' quality assurance Scheme (II) 1 Surface treatment: check the wall, deal with floating sand, hollowing, cracking and other phenomena, detect the DH value of the wall, and ensure that the DH value of the wall meets the requirements 2 2.1 two coats of flexible penetration anti crack leveling putty: high-grade cement Combined with high-performance powder resin, filler and quartz sand with a diameter of about 0.8mm, the thermal expansion coefficient of the composite is close to the base surface of cement mortar, and it can penetrate each other, so as to prevent the interface film formed due to the intersection of two different materials, and because of its certain flexibility, the bonding strength with the base surface of cement is high (up to 3.6mpa), Therefore, it can prevent the base surface from cracking, never falling off, and has excellent waterproof performance 2.2 grinding and maintenance: after each construction, the putty shall be cured and polished 3 Lay alkali resistant glass fiber mesh: lay alkali resistant glass fiber mesh in the middle of flexible penetration crack resistant leveling putty to enhance its tensile strength (alkali resistant glass fiber mesh is a kind of high-strength, alkali resistant and similar glass fiber mesh refined by chemical fiber with a thickness of about 0.28cm, whose main function is to prevent coating cracking, peeling and enhance tensile stability) 4 4.1 flexible repair and leveling putty: its structure and composition principle are the same as that of flexible penetration and anti crack leveling putty, except for the necessary adjustment of quartz sand particles, that is, the diameter coefficient is similar to that of flexible penetration and anti crack leveling putty, the flexibility is slightly enhanced, the bonding strength is 5MPa, and the flatness of the base can be adjusted to an error of ≤ 0.1cm/2m 4.2 maintenance: the putty shall be maintained after construction 5 External wall grinding: polish the putty surface until the surface is flat 6 6.1 imported high adhesion primer twice: the material has strong permeability and sealing property, which is the best primer type among high-grade coatings, with excellent alkali resistance function, effectively isolating the free alkali molecules in the building wall from extravasation, so as to prevent the putty layer from returning alkali and blooming 6.2 the primer shall be polished and repaired after it is completely dry 7 Two coats of imported high elastic silicone resin exterior wall coating: use the affinity of mineral filler, add organosilicon to polymerize, arrange and transform the molecules in order to form the molecules with both network and linear structure, and then add diatomite to increase the reaction probability of silica, which is a kind of water-based coating with a sense of flow state, evenly spray (roll or brush) firmly Firmly attached to the building wall, Viceroy silicone synthetic resin coating products, due to the excellent characteristics of effectively dissolving silicon and thorough Petrochemical effect, so its weather resistance, permeability, extensibility, color sense and other effects have a qualitative leap, which is a kind of imported high-grade coating 8 The coating manufacturer can provide ten to fifteen years of quality assurance Scheme (3) 1 Surface treatment: check the wall, deal with floating sand, hollowing, cracking and other phenomena, detect the DH value of the wall, and ensure that the DH value of the wall meets the requirements 2 2.1 two passes of flexible penetration anti crack leveling putty: high-grade cement, high-performance powder resin, filler and quartz sand with a diameter of about 0.8mm are used to synthesize the putty The coefficient of thermal expansion of the putty is close to the base surface of cement mortar, and it can penetrate each other, so as to prevent the interface film formed due to the intersection of two different materials, and the bonding strength with the base surface of cement due to certain flexibility High (up to 3.6mpa), so it can prevent the base surface from cracking, never falling off, and has excellent waterproof performance 2.2 grinding and maintenance: after each construction, the putty shall be cured and polished 3 Lay alkali resistant glass fiber mesh: lay alkali resistant glass fiber mesh in the middle of flexible penetration crack resistant leveling putty to enhance its tensile strength (alkali resistant glass fiber mesh is a kind of high-strength, alkali resistant and similar glass fiber mesh refined by chemical fiber with a thickness of about 0.28cm, whose main function is to prevent coating cracking, peeling and enhance tensile stability) 4 4.1 flexible repair and leveling putty: its structure and composition principle are the same as that of flexible penetration and anti crack leveling putty, except for the necessary adjustment of quartz sand particles, that is, the diameter coefficient is similar to that of flexible penetration and anti crack leveling putty, the flexibility is slightly enhanced, the bonding strength is 5MPa, and the flatness of the base can be adjusted to an error of ≤ 0.1cm/2m 4.2 maintenance: the putty shall be maintained after construction 5 External wall grinding: polish the putty surface until the surface is flat 6 6.1 oily polishing putty: it is made of imported resin, water-resistant and alkali resistant, with excellent performance and smooth filling construction It can adjust the flatness of the building wall to an error of ≤ 0.5mm/2m 6.2 polish and repair after completion and dry out 7 7.1 two coats of imported high elastic oil super clean clear rain paint special primer: strong adhesion, strong permeability, excellent adhesion, excellent respiratory function 7.2 polish and level after completion and drying 8 Imported high elastic oil super clean rain paint three times: strong adhesion, strong permeability, excellent adhesion, low surface energy -23dyne/cm, no dirt and dirt, no electrostatic dust absorption, excellent self-cleaning, excellent weatherability, excellent anti-aging properties, and can resist acid and alkali erosion and rain water rinse, excellent breathing system, one-way ventilation, coating Dense, smooth surface, strong pollution resistance, non-toxic, environmental protection, due to the addition of diatomite modification, but also to absorb odorous molecules in the air, purification of the air 9 The coating manufacturer can provide more than 20 years of quality assurance.