When we need to select PVC waterproofing membrane for construction projects, how to identify its quality and make the right purchase has become a key issue.
Firstly, make a preliminary identification from the appearance. The surface of high-quality PVC waterproofing membrane should be flat and smooth, without obvious flaws such as bubbles, holes, or cracks. The edges of the membrane should also be neat, and the thickness should be uniform. If the surface of the membrane is rough or there are obvious bumps or depressions, there may be problems in the production process, and its waterproof performance and durability in use are doubtful.
Checking the markings on the membrane is also an important part. The PVC waterproofing membrane produced by regular manufacturers will clearly mark information such as the product name, model, specification, implementation standard, production date, and manufacturer. For example, products produced in accordance with relevant national standards will clearly mark the specific standard number. Products lacking these key markings or with blurred markings are often of poor quality and may be unqualified products produced by small workshops.
Detecting the physical performance indicators of the membrane is the core step in identifying quality. Indicators such as tensile strength, elongation at break, and water impermeability need to be focused on. You can understand the situation of these indicators by checking the product quality inspection report. A formal inspection report is issued by a qualified third-party inspection agency, and the data in the report should meet the corresponding national or industry standards. If conditions permit, samples can also be taken and sent to professional inspection agencies for re-inspection to ensure that the actual performance of the membrane meets the requirements.
When purchasing, choose brand products with a good reputation. Well-known brands usually have a complete production process and a strict quality control system, so the product quality is more guaranteed. At the same time, consider whether the price of the product is reasonable. Don’t blindly pursue low prices and ignore quality. A too low price may mean that the product has cut corners in the selection of raw materials or in the production process.
In conclusion, only by carefully identifying the quality and making a scientific and reasonable purchase of PVC waterproofing membrane can we ensure the use of high-quality and reliable waterproof materials in building waterproofing projects and avoid many troubles and losses caused by material quality problems in the future.