How to Detect Waterproof Coating Thickness?

In house decoration, waterproofing and leakage prevention is a very important process. Once it is not done well, subsequent house occupancy and maintenance will consume a lot of energy. Especially on a rainy day, the entire wall is wet. Therefore, the use of high-quality waterproof coatings has a great effect on home waterproofing. It can keep the walls clean and flawless while reducing water seepage, so that we have no worries.
        However, some owners are also very puzzled. Why do we see the decoration master apply waterproof coating on the wall many times and the wall will still seep within a few years? Among them, in addition to the possible quality problems of waterproof coatings, it also involves a common sense of our mistakes, that is, the waterproof coating thickness is not as thick as possible. In the decoration, the waterproof coating thickness has strict technical standards and requirements.
        Why isn't the thicker the waterproof coating, the better? On the one hand, the thicker the coating, the easier it is to cause hollowing, cracking on the wall; on the other hand, too thick coating will be time-consuming and waste energy. Therefore, in this article, we will talk about how thick the waterproof coating is to be waterproof and how to detect the waterproof coating thickness.

1. How thick is the waterproof coating to make it waterproof?

The JS class waterproof coating construction specification stipulates that the total thickness of the two layers of brushing must be at least 1.5-2mm. Within this range, waterproof coating can ensure a certain waterproof effect. The waterproof coating thickness is not less than 2 mm, which can reach 20 years of service life, which is first-class waterproof; the thickness is not less than 1.5 mm but less than 2 mm, the coating can reach 10 years of service life, which is second-level waterproof. It can be seen that the waterproof age is closely related to the waterproof layer thickness.
        The decorator will also pay attention when painting: each time when applying waterproof paint, the thickness is not more than 1 mm, wait for 1-2 hours after the paint dries. Then apply the next brush, using the vertical cross method when painting. In order to ensure that the waterproof layer thickness is within the correct value.
        Guaranteeing the waterproof coating thickness can be achieved by controlling the amount of material per square meter. But if the paint thickness is brushed to 2 mm at a time, it will cause the paint to dry on the outside but the internal moisture cannot be evaporated, the waterproof layer is weak and soft. The waterproof effect is poor and the coating will break once touched.

2. How to detect the thickness and effect of waterproof coating?

To test its effect, the closed water and water-side experiments are the best choice, because this experiment can detect whether the film layer is continuous and uniform. But it can not detect whether the waterproof coating thickness meets the requirements, so other methods are required for measurement. Cut out a 20mm * 20mm waterproof coating, place the coating on a horizontal surface and measure with a vernier caliper.
        However, some professional acceptors now use Linshang LS220H coating thickness gauge to make measurements. This method can do not damage the waterproof coating. At the same time, the accuracy of measuring the waterproof coating thickness is relatively high. If the owner is worried that the cutting coating will damage the overall decoration aesthetics, it is better to choose this type of professional coating thickness gauge for testing.