Paint classification: water based crack paint

Core tip: Product Introduction: Water based crack paint is a kind of fine art paint, which is composed of water-based primer and water-based finish When the top coat paint is applied on the flexible primer, the top coat will shrink during the drying process, and the surface will crack, exposing the primer below, forming a crack pattern The coating VOC content is very low, which can greatly reduce the pollution to the environment and the personal toxicity to operators The film has strong adhesion, good water resistance and scrub resistance It can be used for decoration and protective coating of glass, doors and windows, cement walls, furniture, etc., and also in furniture and interior decoration 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 Paint Home News: Product Introduction: water based crack paint is a kind of art paint, composed of water-based primer and water-based finish When the top coat paint is applied on the flexible primer, the top coat will shrink during the drying process, and the surface will crack, exposing the primer below, forming a crack pattern The coating VOC content is very low, which can greatly reduce the pollution to the environment and the personal toxicity to operators The film has strong adhesion, good water resistance and scrub resistance It can be used for decoration and protective coating of glass, doors and windows, cement walls, furniture, etc., and also in furniture and interior decoration Mechanism: it is mainly caused by shrinkage during the drying process of finish paint The influencing factors include the tensile strength caused by shrinkage, the tensile strength of finish coating and the flow performance of primer Under the action of flexible primer, the uneven shrinkage of finish produces stress concentration When the stress is greater than the tensile strength of the film, it will crack and form cracks Characteristics: water is used as the dispersion medium, non combustible and pollution-free; it does not contain benzene, toluene and other benzene series, no pungent smell and no harm to human body Application: This product is suitable for painting metal, wood, plastic and other arts and crafts Film performance: according to the test results of the test items, the crack pattern has a satisfactory crack effect The adhesion of the paint is grade 1, water resistance is 48h, the film is not damaged, alkali resistance is 48h, the film is not damaged, scrub resistance is 2000 times, and the substrate is not exposed Waterborne crack lacquer is made up of two parts: primer and topcoat The primer is made of elastic emulsion When necessary, a small amount of color paste or thickener is added The color paste and acrylic emulsion, multi-functional auxiliaries and thickeners are mixed evenly with the dispersing machine at the speed of 400r/min, that is to say, the crack top coat is made Raw material mass fraction /% water-based colorant 8 - 20 acrylic emulsion 60 - 90 thickener TT-936 0.1 - 1.2 multifunctional auxiliary AMP-95 0 - 1.55 propylene glycol 0 - 2 deionized water 20 - 20 construction process:) before finishing, the substrate must be treated with clean, putty filled with gaps and small holes, dry and polished; The dry film thickness of the water-based primer shall be controlled between 8-80 μ m; 3) the film shall be formed at 15-70 ℃, and the film forming state may be just surface dry, or after surface dry, it shall be placed at room temperature for 0-5h; it shall not be dried to dry, otherwise it will affect the adhesion between the primer and the top coat, and the effect of crack paint cannot be obtained; 4) The dry film thickness of the water-based topcoat is controlled between 5-80 μ m according to the desired crack size Spray coating can achieve better crack effect, brush coating and roller coating crack effect is not ideal Place the coated articles or samples at 10-70 ℃ and dry the surface at 10-50 ℃ for 10-50min In the meantime, there is crack effect Note: 1) generally, the spray paint has the best effect, and the crack texture is round, natural, uniform and three-dimensional If brush painting will be affected by hand gestures, uneven direction changes, resulting in poor crack effect, dull and rigid feeling 2) Before the construction of crack paint, the primer is generally constructed first, and the matching water-based gold powder paint and silver powder paint of our company can also be used to paint the colored primer Generally speaking, the greater the color contrast between the primer and the top coat is, the stronger the stereoscopic sense is, and the better the effect is But if it is applied on PS, crack paint can be sprayed directly without primer 3) Before large-scale construction, the sample must be sprayed on the small sample plate which has been sprayed with primer According to the effect of crack size, the construction viscosity and film thickness of crack top coat shall be selected, and the shape, air pressure, paint output (setting), gun speed and interval distance of spray gun shall be adjusted When the viscosity of crack paint is large and the film is thick, the crack speed is slow and the crack texture is large; otherwise, the crack speed is fast and the crack texture is small 4) The uniformity of crack size is affected by many factors, especially the construction personnel's mastery of spray technology When spraying, one shot shall be successful, and the shot shall not be returned or repaired Storage: cool, ventilated and dry place, the validity of the product is 6 months 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,