Essential details
Shipping:Express delivery
Product Introduction
LOCA®-400 asphalt-modified ethylene vinyl acetate (ECM) pre-laid waterproof membrane consists of asphalt-modified ethylene vinyl acetate membrane as the base material, self-adhesive, a surface anti-adhesion (reduced) protective layer (except for overlapping areas), and a release material (if needed). It is bonded to the subsequently poured concrete and is installed using the pre-lay method. Overlapping edges are welded with hot air. No additional layers are required, and a protective layer is also optional. The product meets the Y-type requirements of "Asphalt-modified ethylene vinyl acetate T/JSQA061—2020 (ECM) Polymer Waterproof Membrane".
Features:
This product perfectly combines the advantages of polymer materials and asphalt; the roll material is soft and conforms well to the skin; it has excellent low-temperature performance, maintaining good flexibility even at -35℃; it boasts high tensile strength, high tear strength, puncture resistance, and chemical corrosion resistance; it is resistant to heat aging and has good dimensional stability; the overlapping edges are hot-air welded, ensuring safety and environmental friendliness with no chlorine gas release or open flame during the welding process; it exhibits superior weather resistance, with an underground service life comparable to that of the structure.
The reverse bonding to the structural layer prevents damage from subgrade settlement, forming a seamless structure between the waterproof layer and the concrete structure, eliminating water seepage.
Scope of application:
It is mainly used in basement floor slabs, subway tunnels, pipe corridors and other parts.
Construction methods and techniques:
Construction Process: Substrate cleaning → Positioning and marking → Pre-laying of membrane → Overlap treatment → Detail joint treatment → Reinforcing steel binding → Concrete pouring.
Construction Method:
Membrane Pre-laying: Measure and cut the product, with the self-adhesive release paper facing the structural layer and the other side facing the substrate. Pre-lay it on the subbase, retaining wall, diaphragm wall, or pile foundation.
Membrane Joints: Hot air welding is used to weld the membrane joints, forming a completely sealed waterproof system.
Membrane Pre-laying: Measure and cut the product, with the self-adhesive release paper facing the structural layer and the other side facing the substrate. Pre-lay it on the subbase, retaining wall, diaphragm wall, or pile foundation.
Membrane Joints: Hot air welding is used to weld the membrane joints, forming a completely sealed waterproof system.
Storage and Transportation:
During storage and transportation, products of different types and specifications should be stacked separately and not mixed. Avoid exposure to direct sunlight and rain, and ensure good ventilation. The storage temperature should not exceed 45℃. When storing flat, the stacking height should not exceed 5 layers; when storing upright, stack in a single layer. Avoid contact with acids, alkalis, oils, and organic solvents. During transportation, prevent tilting or horizontal pressure; cover with tarpaulins if necessary.
Product Specifications:
| Substrate type | thickness(mm) | width(m) | length（m) |
| ECM | 1.2, 1.5, 1.8, 2.0 | 1.0, 2.0 | 20 |