echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Coatings News > Paints and Coatings Market > Paint common sense: paint film repair artifact "water repellent"

    Paint common sense: paint film repair artifact "water repellent"

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Core tip: water repellent is a kind of strong solvent used in local repair of paint film, which is composed of one or several solvents Its working principle is: through dissolving and leveling the paint mist particles at the interface of paint film repair, the smooth transition of new and old paint film, elimination of color difference, integration of paint film at the interface, and improvement of decorative performance of paint film are achieved It is composed of strong solvent, strong solvent, weak solvent, defoamer and leveling agent with different volatilization speed The purpose of extremely strong solvent is to have strong solubility and strong volatility The role of weak solvent is to help the ratio of solubility and relative solvent, so as to comprehensively control the dissolution effect Add some Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: water repellent is a kind of strong solvent used in local repair of paint film, which is composed of one or several solvents The working principle is: through dissolving and leveling the paint mist particles at the interface of paint film repair, the smooth transition between the old and new paint film is achieved, the color difference is eliminated, the paint film at the interface is integrated, and the decorative performance of the paint film is improved It is composed of strong solvent, strong solvent, weak solvent, defoamer and leveling agent with different volatilization speed The purpose of extremely strong solvent is to have strong solubility and strong volatility The role of weak solvent is to help the ratio of solubility and relative solvent, so as to comprehensively control the dissolution effect Adding appropriate defoamer and leveling agent can ensure the paint film to be re leveled after dissolving, and form better appearance decoration effect after drying The coatings for high performance railway vehicles are mainly two-component polyurethane coatings After curing, the film has high crosslinking density, which can only be dissolved by strong polar solvent The repair of watercress is the local defects on the surface of the paint film, including sagging, roughness, pinpricking, scratching, local pollution, etc It is convenient and quick to repair these defects by using water barge, and the appearance is good after repair However, the overall re coating not only wastes a lot of manpower and paint, but also can not guarantee that no new paint film defects will appear after re coating After the completion of the construction of the water barge, the effect is affected by the process parameters such as the way of adding, spraying distance, number of spraying courses, spraying interval time and leveling time The best way to add water is to add it into the cleaned spray pot, so that the interface is flat, free of paint mist particles and uniform color If the more paint remains in the spray pot, the more gloss at the interface will be reduced, and small spots will be produced It is better to spray the water barge immediately after the coating is sprayed, but at this time, because of the high solvent residue of the coating itself, it is easy to appear the phenomenon of sagging Therefore, in order to ensure a good spraying effect and avoid sagging phenomenon as much as possible, it is most appropriate to spray the scuttle when the paint is dry for a period of time, but not dry The spraying times are generally controlled at 2 times, and the interval is 1min If the spraying times are more, the atomization effect of the nozzle on the interface is better, but the phenomenon of sagging is easy to occur The application of water barge in the repair of vehicle coating can effectively avoid the influence of repair trace on the appearance of the whole vehicle Compared with the repair of the whole parts or the repainting of the whole vehicle, it saves a lot of coating and working hours, and has broad application prospects and economic benefits 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,
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.