Ludu waterproof materials include high polymer waterproof rolls such as EPDM rubber waterproof rolls, polyvinyl chloride (PVC) waterproof rolls, thermoplastic polyolefin (TPO) waterproof rolls, etc. There are waterproof coatings such as polyurethane waterproof coating and polymer cement waterproof coating. Next, we will introduce the relevant content in detail.

• Synthetic polymer waterproofing membrane forLudu waterproofing materials

1. EPDM rubber waterproofing membrane

EPDM rubber is made by adding an appropriate amount of butyl rubber as the basic raw material, and then adding softeners, fillers, reinforcing agents, vulcanizing agents, accelerators, stabilizers, etc., through processes such as plasticizing, extrusion, pulling, rolling, and vulcanization to produce high-strength and high elasticity waterproof rolls. EPDM rubber has a very stable molecular structure, therefore it has excellent physical and mechanical properties and resistance to chemical corrosion, making it one of the most durable waterproof materials. The physical and mechanical properties of EPDM rubber waterproofing membrane should comply with the requirements of the national standard "Polymer Waterproof Materials Part 1: Sheet" GB 18173.1-2012.

2. Polyvinyl chloride (PVC) waterproofing membrane

Polyvinyl chloride (PVC) waterproofing membrane is a waterproofing membrane made mainly from polyvinyl chloride resin, with additives and fillers added, and processed by extrusion or rolling method. In addition to the basic characteristics of synthetic polymer waterproofing membranes, its biggest feature is its good weldability. The seams of the membranes are connected by welding, and their strength and durability are the same as those of the membranes. However, attention should be paid to possible problems such as virtual welding and desoldering, which are more likely to occur during manual welding. One of the main weaknesses of this coil is its large thermal shrinkage and post shrinkage. When using it, full attention should be paid and necessary measures should be taken to reduce the adverse effects of shrinkage.

3. Thermoplastic polyolefin (TPO) waterproofing membrane

Thermoplastic polyolefin (TPO) is a copolymer composed of rubber with soft segments and polyolefin with hard segments. It is usually made by blending EPDM rubber with polypropylene, using this blend as the base material, and adding antioxidants, anti-aging agents, softeners and other additives to extrude or roll thermoplastic polyolefin (TPO) waterproofing membranes. This membrane combines the performance advantages of EPDM rubber waterproofing membrane and PVC waterproofing membrane, with the former's weather resistance, low-temperature flexibility, and the latter's weldability. This material is different from traditional plastics in that it exhibits high elasticity like rubber at room temperature and can be molded like plastic at high temperatures. Adding a layer of polyester fiber fabric between two layers of TPO material can enhance its physical properties, improve its fracture strength, fatigue resistance, and puncture resistance.

• Waterproof coating ofLudu waterproof material

1. Polyurethane waterproof coating

Polyurethane waterproof coating is a waterproof coating made by mixing pre polymers containing isocyanate groups, such as isocyanates and polyethers, through addition polymerization reactions, with additives and fillers. The formed coating has excellent tensile strength, elongation, and high and low temperature resistance, as well as good bonding ability with various substrate degrees and strong chemical corrosion resistance.

The UV resistance of polyurethane waterproof coatings is poor, and they age rapidly under UV irradiation. Therefore, ordinary polyurethane waterproof coatings should not be exposed for use. If they are to be exposed for use, shielding or light absorbing UV inhibitors need to be added.

2. Polymer cement waterproof coating

Polymer cement waterproof coating is a two-component water-based waterproof coating, called JS waterproof coating for short, which is made of acrylate, ethylene vinyl acetate and other polymer lotion and cement as the main raw materials, added with fillers and other additives, and solidified into a film through water evaporation and cement hydration reaction. This coating has been widely used due to its excellent physical and mechanical properties and non toxicity.

3. Polymer lotion building waterproof coating

Polymer lotion building waterproof coating is a kind of one component water emulsion waterproof coating, which is made of polymer lotion as the main raw material and other additives. This coating has good physical and mechanical properties, is non-toxic and harmless, and does not pollute the environment; Adding colorants can make colored coatings, which have decorative functions when exposed for use. However, the waterproof coating made of EAV lotion and some brands of acrylic lotion has a large water absorption after curing, which may cause the phenomenon of back emulsion. When it is used in a long-term immersion environment, a long-term immersion test should be conducted.

The above is the complete answer to "What are the synthetic polymer waterproof rolls and waterproof coatings for Ludu?" If you have any questions or suggestions, please feel free to contact us.