Geotechnical engineering EVA membrane is a kind of flexible sheet material manufactured through a series of processes including shaping, cooling, testing, bundling and packaging, with ethylene vinyl acetate copolymer as the main raw material, mixed with an appropriate amount of modifiers, antioxidants, ultraviolet absorbers, colorants, fillers, plasticizers, etc. EVA waterproof membrane is featured by excellent resistance to environmental stress cracking, flexibility, high strength, small specific gravity, high elongation, convenient laying, no displacement, etc. it applies to a variety of underground caves, tunnels, subways, municipal construction and other waterproofing and seepage-proofing works.

EVA Waterproof Membrane

Maximum tension (KN/m), ≥60

Tensile Strength/MPa, ≥16

Elongation at break/%, ≥550

Fold-ability at Low Temperature: -35 °C

Thickness: 0.6~2.0mm, Width, 2.0 and 3.0 meters

1)High tensile strength, large elongation and small size change after heat treatment.

2)Good low-temperature flexibility, excellent adaptability to ambient temperature change and strong resistance to chemical corrosion, providing good applicability to special occasions.

3)Good resistance to root and puncture, providing applicability to planted roofing

4)Good plasticity, allowing easy handling of edges and corners

5)Convenient construction, weldable, solid, reliable and pollution-free, easy maintenance and low cost.

It applies to a variety of underground caves, tunnels, subways, municipal construction and other waterproofing and seepage-proofing works.

Construction Technology

With the use of pre-laid method, the construction process for horizontal plane, vertical plane and tunnel vault are as follows:

1).Horizontal Plan: substrate cleaning → setting out on substrate → laying of pre-laid membrane → overlap treatment → joint treatment → isolation film removal → steel bar binding → concrete pouring

2)Vertical plane: Installation of facade support (spacer) → setting out → laying of pre-laid membrane → mechanical fixing of membrane (welding or nailing) → overlap treatment → joint treatment → isolation film removal → special adhesive application at nail heads → steel bar binding → concrete pouring

3)Tunnel vault: Tunnel vault→setting out →installation of support (spacer or hanging nail) → laying of pre-laid membrane → mechanical fixing of membrane (welding or binding) → overlap treatment → joint treatment → isolation film removal → steel bar binding → concrete pouring

We produce SBS/APP modified bitumen waterproofing membranes, Self adhesive bitumen waterproofing membranes, Self adhesive bitumen flashing tape, Self adhesive butyl waterproofing tape, PVC/TPO/HDPE/EVA waterproofing membranes, Polymer compound waterproofing membrane, Liquid bitumen coating, etc, our company also export Non woven polyester mat for bitumen membranes, Glassfiber mesh compound mat for bitumen membranes, Glassfiber mesh, Modified bitumen membrane production lines, etc

Our products are sold in over 20 countries all over the world. Approximately 70% of the total produced materials are supplied to the China market while the remaining 30% are exported to European countries, Middle East, South East Asia, South American and U.S.A.

Honest is our business policy, quality and service first. The key of the successful activity in the high quality of research and controls before, during and after production.