Since this is a living person, the answer will naturally involve personal interests, so some very professional answers often evade some questions intentionally or unintentionally, and even deceive people's answers without conscience, while the answers of some enthusiastic netizens who have no interests are not professional enough, which will mislead the people, maintain and leak them repeatedly, which is miserable.
The lack of conscience in the field of waterproof and plugging is a very common and serious problem, which has its roots:
First, the traditional waterproof material has shortcomings, and it can't cure water leakage, and it can only be used for several years. Everyone can't do it once and for all. In the market environment where everyone exaggerates publicity, whoever tells the truth will be ruthlessly eliminated. This is the reason of the market environment.
The second is the particularity of the product or service itself. Unlike many other commodities, which have uniform specifications and indicators, it is difficult to intuitively compare the products provided by different merchants, and it takes several years to test the results. However, before the results come out, the money has been paid, or only a little warranty money is left, and problems often pass the warranty period.
Third, waterproofing and plugging is a low-frequency and high-dosage project, which looks simple, but it is actually very professional. The low frequency determines that merchants have the motivation to fool customers, and the large quantity determines that merchants have the basis to take the inferior and low-priced route to cater to consumers' psychology of seeking cheap. It seems simple to determine that customers are overconfident and don't recognize high-priced products, and strong professionalism determines that there is a lot of room for information asymmetry to fool customers. These integrations determine the chaos and disorder of the current waterproof and plugging market.