Renovation Tips - An introduction to the detection methods and characteristics of anti-corrosion coatings

Anti-corrosion coatings
an indispensable
in the
paint coatings", as the name implies, anti-corrosion coatings are to ensure that metals and other corrosive objects are not corroded. However, there are still a lot of small partners on anti-corrosion coatings do not know very well. In this issue, we introduce the anti-corrosion coatings
building materials
methods and their characteristics, I hope to help you

.
anti-corrosion coating detection method
1, coating film adhesion determination method: coating film adhesion as the name implies is the degree of robustness of anti-corrosion coating attachment on the material. We can scrape or slip with a knife on the surface of the material to see what happens. The determination method of general coating adhesion has the method of circle, the method of drawing, the method of pulling, etc.
2, membrane thickness detection: the previous mention of the standard on thick film: the general anti-corrosion material thick film standard is about 100 m or 150 m. Heavy anti-corrosion coatings are more than 300 m or more. Within this standard range, it works best against corrosion. Therefore, it is very important to detect the post-mold degree. The measurement method is divided into destructive test and non-destructive test. Use both methods to test whether the thickness is within the standard range.
The characteristics of anti-corrosion coatings
1, can be used under harsh conditions, and has a long life of corrosion protection, heavy anti-corrosion coatings in the chemical atmosphere and marine environment, generally can be used for 10 years or more, even in acid, alkali, salt and solvent media, and at a certain temperature conditions, can be used for more than 5 years.
2, thick film is an important symbol of heavy anti-corrosion coatings. The coating dry film thickness of the general anti-corrosion coating is about 100 m or 150 m, while the thickness of the heavy anti-corrosion coating dry film is 200 m or more, and there are 500 m to 1000 m, according to the U.S. NACE standard . The revised Version No.53105 of the ZS-711 coating was evaluated for corrosion resistance, and as a result, the test of 4000h salt spray test and 4000h wet heat test was successfully passed.
coating has excellent weather resistance, anti-aging, radiation resistance, wear resistance, impact resistance, high temperature (400 degrees C to 600 degrees C), low temperature (-60 degrees C), stable conductivity;
3, strong adhesion: coating and substation binding force, coating composition contains hydroxyl (-OH), metal substation provides positive ions, can form a chemical bond binding, in the coating with the help of the coupled agent, and even achieve the combination of the co-price chain. Under the space mesh structure, the coating composition contains metal, metal oxide nanomaterials and rare earth oxide super-micro-powders, which help the coating form a dense interface transition layer, so that its comprehensive thermodynamic properties match the substation.
4, efficient and convenient: simple construction, the real realization of inorganic coatings at room temperature self-curing, when the ambient temperature of 20 degrees C, relative humidity is less than 85%, table dry 15min, dry 2h, can ensure high efficiency construction, can achieve excellent anti-salt fog, anti-aging. The coating is self-healing, local scratches caused by external forces can still be protected, the coating is not damaged by cutting and welding, and the welding with coating does not affect the welding quality.
5, flexible
(1) anti-corrosion performance: good adhesion, excellent anti-corrosion performance, long life.
(2) excellent construction performance: like conventional anti-corrosion coatings, fast curing at room temperature, simple construction, unskilled people can also operate (chlorinated rubber heavy anti-corrosion coatings can get a large number of applications, mainly for this reason).
(3) excellent environmental performance: the traditional solvent-based anti-corrosion coating solid content can only reach 50 to 60%, while high solid weight anti-corrosion coating solid content can reach 70% to 80%, or even 90% to 100%, solvent reduction of nearly half, showing good environmental performance.