Can waterproof coating testing** be done? What are the testing items and standards for waterproof coatings? How much does the waterproof coating adhesion test cost? How long does it take for a waterproof coating test to be reported? Foshan Huajin's third-party material testing laboratory can provide all kinds of waterproof coating testing services, including quality testing, composition testing, adhesion, drying time, coating film thickness, hardness testing, surface testing, RoHS testing, etc. As a third-party testing center, the institution has CMA, CNAS certification and testing qualifications, complete testing equipment, scientific and reliable data, and can issue a nationally recognized waterproof coating test report within 5-10 working days.
Waterproof coating is a viscous liquid polymer synthetic material that has no fixed shape at room temperature. After coating, it is a general term for materials that form a tough waterproof membrane on the substrate after being cured by the volatilization of solvents or the evaporation or reaction of water. Waterproofing coating is a commonly used material that is widely used in buildings, bridges, basements, etc. In order to ensure the quality and performance of waterproofing coatings, regular testing is required. This article will introduce the testing standards and frequency of waterproofing coatings.
The testing standards of waterproof coatings mainly include the following aspects:
1.Physical property testing: including coating film thickness, drying time, adhesion, hardness, bending performance and other indicators. The thickness of the coating film refers to the thickness of the coating film, which is generally required to meet the design requirements; Drying time refers to the time it takes for the coating film to dry, which is usually required to comply with the manufacturer's instructions; Adhesion refers to the strength of the bond between the coating film and the substrate, which is usually tested using the scraping method; Hardness refers to the hardness of the coating film, which can be determined using a pencil hardness tester; Flexural performance refers to the ability of a coating film to bend when subjected to force, and is usually tested with a flexure testing machine.
2.Water resistance test: Investigate the stability of waterproof coatings under water. Generally, the immersion test or spray test is used to test the water resistance of the coating film under water. The immersion test is to observe the changes of the coating film after soaking it in water for a certain period of time; The spray test is to spray water through the nozzle at a certain pressure to observe its waterproof performance.
3.Weather resistance test: to investigate the stability of waterproof coatings under different climatic conditions. Common climatic conditions include high temperatures, low temperatures, ultraviolet radiation, humidity, etc. The detection methods include artificial accelerated aging test and natural exposure test. The artificial accelerated aging test is to place the coating film in a specific climate chamber and observe the aging of the coating film by simulating different climatic conditions. The natural exposure test is to expose the coating film to the natural environment to observe its weather resistance.
4.Chemical performance testing: including acid resistance, alkali resistance, salt water resistance, etc. Immersion tests or chemical immersion tests are usually used to test the chemical properties of the coating film. The immersion test involves soaking the coating film in a specific chemical liquid to observe its changes. The chemical agent immersion test is to soak the coating film in different concentrations of acid-base solution or brine to observe its tolerance performance.
The frequency of testing of waterproofing coatings can be determined on a case-by-case basis. In general, it is recommended to carry out a comprehensive inspection of waterproofing coatings once a year. In places where large-scale construction is carried out or used in exposed environments, the inspection cycle can be shortened. At the same time, timely testing should also be carried out when there is a problem with the coating film or when the project needs it.
It should be noted that when testing waterproof coatings, an authoritative testing agency or laboratory should be selected and operated in accordance with relevant standards. At the same time, the construction and use should be carried out in strict accordance with the manufacturer's instructions to ensure the performance and durability of the waterproof coating.
The testing standards of waterproof coatings mainly include physical properties, water resistance, weather resistance and chemical properties. The frequency of testing is usually once a year, but it can be adjusted depending on the situation. Reasonable testing can ensure the quality and performance of waterproof coatings, and improve the service life and waterproof effect of waterproof coatings.
What are the advantages and disadvantages of waterproofing coatings?
First, the advantages of waterproof coatings are as follows:
Convenient construction: ordinary masons can achieve good quality requirements according to the general plastering method.
The requirements for the construction environment are not strict: the construction can be carried out on wet or rough substrates.
High thickness and high strength: no protective layer is required to withstand puncture damage after construction.
It is conducive to the construction of subsequent processes: for example, directly on the waterproof layer to paste tiles, scrape putty, brush paint and other processes.
Long durability: It can be synchronized with the life of the building, it is a permanent waterproof material, and the cost is relatively low.
Second, the disadvantages of waterproof coatings are as follows:
It cannot withstand the erosion of corrosive substances such as acids, alkalis, and chlorines in water, resulting in premature leakage.
Waterproof coating testing and inspection process:
1. Fill in the application form: contact Huajin testing staff to confirm the testing standards and projects, and sign the power of attorney.
2. Arrange to send samples: send the samples by express or directly to our laboratory.
3. Product testing: After payment, the laboratory arranges testing and issues a draft report.
4. Confirm the draft report and issue a formal report.
5. Report bill delivery service, as well as report interpretation and after-sales service.
The above is the relevant introduction of Huajin Testing on waterproof coating testing services, more about waterproof coating testing costs, standards, projects, cycles and other issues can be consulted by ** engineer or call for consultation. (Test The testing cycle, method and steps are subject to the engineer, if the sample is special, you can communicate with the engineer about the particularity of the sample, and the institution can design a reasonable testing and analysis plan for you to save your time).