Preparation of main materials:

1. PET coil

1) Good combination of bonding performance and base layer;

2) Cement slurry bonding, healthy and environmentally friendly;

3) Simple structure, easy operation;

4) Cost-effective, wide range of applications;

5) No water channeling, even if it is pierced, it is not easy to have seepage points, and it is convenient to maintain.

2. Non-curing rubber bitumen waterproof coating

1) This kind of product can not be in a cured state, and bonding with the base layer will form a certain strength of protective film, which to a certain extent improves the waterproof and impermeable performance of construction projects.

2) The coating has high elongation, strong adaptability to cracking or expansion of the base layer, and will not transfer the stress of the base layer to the coil layer, which solves the problem of zero elongation.

3) It can be combined with other forms of waterproofing membrane to form a composite waterproof structure.

4) It can be sprayed or scraped, which is convenient to operate.

5) PET coil can well adapt to the deformation of the base layer, close the microcracks of the base layer, and eliminate the occurrence of water channeling.

Waterproof structure:

(1) The process flow of PET coil

Base layer treatment → Coating base layer treatment agent→ Hot melt non-curing rubber bitumen waterproof coating → Coating non-curing rubber bitumen waterproof coating → Thermal energy effect treatment→ Large surface PET coil → Mud covering and exhaust treatment→ Lap edge sealing→ coil finishing and sealing→ acceptance

(2) Construction method of PET coil

1. Base layer treatment: the surface of the base layer should be firm, flat, dry, clean, free of dust and oil, and the corner should be made into a 50mm×50mm inclined surface or a 50mm radius rounded corner.

2. Base layer treatment agent coating: evenly apply the base layer treatment agent on the qualified base layer. Before brushing, the treatment agent should be stirred thoroughly. When brushing, the thickness should be uniform, without bottom leakage and accumulation. Follow the principle of first high and then low, first elevation and then plane. After the relevant emulsion of the applied base layer has been dried, the self-adhesive membrane can be laid.

3. Hot melt non-curing rubber bitumen waterproof coating: Before construction, the non-cured rubber bitumen waterproof coating should be heated in a liquid state in a heating tank and reach a certain degree of temperature before it can officially enter the construction state. The heating temperature for manual scraping should be ≥ 120 °C and the spraying temperature should be ≥ 150 °C

4. Non-curing rubber bitumen waterproof coating construction: The non-curing rubber bitumen waterproof coating in the heating tank should be evenly applied to the base layer by scraping or spraying, with a thickness of about 1 mm. After scraping and coating the non-cured rubber bitumen waterproof material, it needs to be laid on the TPE self-adhesive membrane waterproof membrane within 3 minutes, and then gently scrape the surface of the membrane to discharge the internal air, and the membrane and the non-cured rubber bitumen waterproof coating should be firmly bonded.

5. Joint reinforcement treatment: Strengthen the seam (such as yin and yang angles, construction joints).