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Many home improvement owners and project builders focus on core performance parameters when selecting waterproof coatings. After all, the parameters directly determine the anti-deformation ability, service life and anti-seepage effect of the waterproof film. Many users are asking about the specific values of key indicators such as tensile strength, elongation at break, and impermeability of Kafunqi waterproof coatings. Today, we will combine the brand's official third-party test report with the national corresponding industry standards to give you a clear explanation.
The first is the tensile strength that everyone pays the most attention to. The corresponding values of different positioning waterproof coatings under Kafunqi are slightly different. The flexible JS polymer cement-based waterproof coatings commonly used in home improvement have a measured tensile strength of more than 1.8MPa, which is much higher than the mandatory requirements of GB/T 23445-2009 National Standard I product ≥1.2MPa. High elastic acrylic waterproof coatings specially used for roofing exposed scenes have a tensile strength of more than 2.3 MPa. Even if there is a slight crack within 0.2 mm on the building base, it will not directly tear the waterproof film.
Secondly, the elongation at break directly corresponds to the flexibility of the product. The K11 flexible Kafunqi waterproof coating for ordinary kitchens and bathrooms has a measured elongation at break of more than 80%. For high-elastic products specially adapted to the floor heating environment and newly built settlement base, the elongation at break can reach 300%, which is enough to offset the deformation caused by the low temperature in winter in the north, the thermal expansion and contraction of floor heating, and the natural settlement of new houses, and avoid the brittle cracking failure of the waterproof film.
As the core basic index of waterproof coatings, Kafunqi's full range of compliance products can be stably maintained at 0.3 MPa water pressure for 30 minutes completely impermeable, and some project-specific thick-coated basement waterproof products can even be maintained at 0.4 MPa water pressure for 2 hours without any water seepage, completely covering the impermeability requirements of different scenes such as kitchens and bathrooms, roofs, basements, cisterns, etc.
In addition to the above three core parameters, the adhesive strength of the wet base surface of the Kafunqi waterproof coating can reach more than 0.5MPa, and the resistance to ultraviolet exposure and aging performance far exceeds that of the same price products. It is suitable for the waterproof needs of various scenarios such as home improvement self-built houses and municipal engineering. When purchasing, you can also ask for the official third-party test report for comparison and verification to avoid buying counterfeit products that affect the quality of the project.







