Detailed explanation of waterproof PET membrane, you will understand it after reading it
Waterproof PET membrane is a type of waterproof membrane. It is a waterproof and anti-seepage material with a completely new structure, multi-purpose, and good comprehensive technical performance, which is manufactured on the basis of full research on existing waterproof and anti-seepage membrane products. It is also a waterproof membrane that is widely used nowadays. material. So do you know about the advantages and scope of use of waterproof PET membrane?
Features of waterproof PET membrane:
1. No adhesive is needed, just peel off the isolation layer and it can be firmly bonded to the base layer. The construction is convenient and very fast.
2. It has the elasticity of rubber, good elongation, and can effectively handle the deformation and cracking of the base layer.
3. It has good adhesion to the base layer and can effectively handle the deformation and cracking of the base layer.
4. It has self-healing properties, that is, when the waterproof PET membrane is punctured or embedded with hard objects, it will automatically heal with these animals, so it can still maintain good waterproof performance.
5. The construction is safe, does not pollute the environment, the construction is simple and clean, and it is easy to achieve civilized construction on site
6. In addition to the main body material, the surface material polyethylene film also has good waterproofness and high strength (the polyethylene polypropylene composite waterproof membrane is only waterproof with this film), so the waterproofing has double insurance.
7. Corrosion resistance: This coiled material has good acid, alkali and chemical corrosion resistance, and has good aging resistance in various environments.
Construction operating procedures
Accept and clean the base layer (leveling layer) → Prepare adhesive (prepared as needed) → Process additional layers in complex parts (yin and yang corners, cornices, drains, pipe holes, etc.) → Construction of waterproof layer → Inspection of waterproof layer → Construction acceptance of protective layer back.
1. The base layer (leveling layer) for laying waterproof PET membrane must be cleaned and sprinkled with water to ensure that the base layer is moist.
2. Use polyvinyl alcohol glue containing 5% to 15% of the cement weight to prepare the cement slurry adhesive. The mixing must be uniform, without precipitation or clotting. It can be used without segregation.
3. Before the construction of the main roof waterproofing layer, detailed nodes with concentrated drainage and complex structures should be sealed and additional layers should be pasted.
4. The sealing material is polyether polyurethane. If other sealing materials are used, they should be products that do not contain mineral oil, petroleum jelly and other chemical substances that affect the performance of polyethylene.
5. Additional layers should be added at the corners; Yin and Yang corners should be made into R=20mm arc shapes.
6. The waterproof PET membrane should be laid using the full paving method. The adhesive should be applied evenly on the base layer without exposing the bottom or accumulating. The membrane should be laid immediately after the adhesive is applied. Prevent the time from being too long and affecting the bonding quality.
7. The waterproof PET membrane should not be wrinkled or stretched by force. While laying welt, remove the air and excess adhesive under the roll to ensure tight bonding between the roll and the base layer and between each layer of roll.
8. The overlap width of waterproof PET membrane shall not be less than 100mm.
9. The joints between the upper and lower layers and two adjacent rolls should be staggered by one-third of the width.
Application scope of waterproof PET membrane:
This kind of waterproof membrane is suitable for waterproofing of industrial and civil building roofs, ground waterproofing, moisture-proof and air-insulating, indoor wall and floor moisture-proofing, toilet waterproofing, water conservancy pools, channels, bridges and culverts waterproofing, anti-seepage, (metallurgical chemical industry pollution prevention, It is necessary to do waterproofing projects such as finished product protection according to the pH value.
The upper and lower surfaces are rough, and the non-woven fibers have a random cross structure, forming a three-dimensional mesh. It can be used stably for a long time in the ambient temperature range of -40℃~60℃.
It is suitable for bonding with a variety of materials, especially for direct bonding with cement materials during the solidification process. It can be constructed as long as there is no open water. It has good overall performance and high tensile strength. It has strong anti-permeability, good low-temperature flexibility, small expansion coefficient, easy bonding, and small friction coefficient. It can be directly installed in sandy soil and has stable and reliable performance. It is a non-toxic, pollution-free, green and environmentally friendly product.
It is suitable for waterproofing of industrial and civil building roofs, ground waterproofing, moisture-proof and air-insulating, indoor wall and floor moisture-proofing, bathroom waterproofing, water conservancy pools, channels, bridges and culverts waterproofing, anti-seepage, metallurgical and chemical pollution prevention and other waterproofing.
Waterproof PET membrane is a kind of waterproof membrane with a relatively complicated process. Waterproof PET membrane is a very good waterproof membrane. This kind of waterproof membrane is also relatively expensive, so it cannot be stretched too hard. .
When installing this kind of waterproof membrane, you must first determine the size, and the adhesive must be applied evenly, otherwise unevenness will occur.
Polyethylene polypropylene multi-layer polymer composite waterproofing membrane is developed based on the new requirements for waterproof and anti-seepage materials in modern waterproofing projects in my country on the basis of full research on existing waterproof and anti-seepage products. This product is a new type of waterproof material made of multi-layered polymer synthetic sheet materials and composite processing using new technologies and new processes.
contact email: liuqian@sdtlplastic.cn
