Common knowledge of coating: what are the requirements for the performance of base leveling putty in the construction of synthetic resin curtain wall?

The key points are as follows: the leveling putty is made of Portland cement and redispersible polymer resin powder as binder, quartz sand with a certain particle size as filler, and a proper amount of water retaining agent, defoamer, dispersant and fiber anti cracking material, etc., which requires relatively comprehensive performance, such as good initial adhesion, good construction performance and waterproof performance The good construction performance of putty is helpful for leveling the base and obtaining high quality putty film By improving the water retention, drying time and thixotropy of putty, the construction performance can be improved Imitation aluminum plate coating 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: the leveling putty uses Portland cement and redispersible polymer resin powder as binder, quartz sand with a certain particle size as filler, and a certain amount of water retaining agent, defoamer, dispersant and fiber anti crack material, etc it is required to have relatively comprehensive performance, such as good initial adhesion, good construction performance and waterproof performance The good construction performance of putty is helpful for leveling the base and obtaining high quality putty film By improving the water retention, drying time and thixotropy of putty, the construction performance can be improved The flatness of aluminum like coating is mainly achieved by repeatedly using guiding rule and batch knife to trim up and down, left and right during construction If the putty film loses operability in a short period of time, the putty film can not be trimmed and the satisfactory effect can not be obtained Generally speaking, the finishing time of putty film after scraping shall not be less than 25 min Putty shall have necessary thixotropy If the thixotropy is small and the viscosity is low, although the construction resistance is small and it has the smoothness required by the construction, the putty will sag automatically due to the effect of gravity after being approved and scraped, and the flatness will be affected If the putty has high viscosity and strong thixotropy, it will not only have good batch coating performance, but also the fresh putty film will not deform and affect the flatness Leveling putty is the most widely used and thickest film-forming material in the construction process of fluorine resin coating for aluminum plate, and its cracking resistance should be considered The shrinkage of putty film shall be small without cracking The coarser the particles of filler in leveling putty, the better the filling performance, the less the possibility of the putty film cracking, but the coarser the surface will be, which will bring trouble to the later construction The coarser the filler particles are, the larger the amount of putty used in the later process for smoothing will be In serious cases, the number of construction passes will be increased, which not only increases the cost, but also brings quality risks and management difficulties due to the increase of the process The finer the filler particles are, the better the smoothness is However, the poor filling property increases the possibility of cracking of putty film In addition, the increased amount of filler will also bring the hidden danger of cracking Therefore, the fine filler particles will bring about the hidden danger of cracking and poor filling performance Pay attention to the balance between the two when preparing putty Leveling includes local filling and large surface leveling According to the use function, leveling putty mainly includes local filling putty and large surface leveling putty The characteristics of local filling putty are that the particles of the filler are relatively coarse, the particles are mostly concentrated in 20-40 mesh, the filling property is good, and it is usually used in the parts with poor flatness of the base course, as well as the situation with relatively rough base course Due to the large amount of filling, these parts are not suitable to be filled with putty with fine filler particles Leveling putty uses filler with particle size of 60-80, which has good filling property and construction performance It is especially suitable for large area operation of guiding ruler leveling, and is easy to adjust and repair 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,