EVA/HDPE waterproof membrane(DYP-819) is mainly made from ethylene, vinyl acetate copolymer/polyethylene, blended with other modification additives. Due to its excellent aging resistance and good weldability, this membrane is widely used in various types of underground waterproof engineering.
1) High tensile strength, over 16 Mpa at normal temperature; high elongation at break, over 550%; good resistance to stress cracking caused by water swelling and rupture in structure.
Excellent resistance to low temperature bending and environment temperature changes.
3) Soft texture, well adapt to substrate, convenient construction.
4) Resistance to mildew and acid & alkali corrosion, especially suitable for railway highway tunnels, civil air defense, culverts and other underground engineering.
5) Excellent hot gas welding property, seamless and tight once welded.
Product contains no volatile solvent or toxic gases, eco-friendly.
Executive Standard & Performance Index
|Executive standard: GB18173.12012 Polymeric Waterproof Materials Section I: Sheet|
Tensile property /Mpa
Elongation at break /%
Tearing Strength/（kN/m） ≥
0.3Mpa, no leakage
-35℃, no cracking
Heat deformation /mm
Lap-joint peeling strength
Standard /N/mm ≥
Retention rate after water soaking (23℃*168h) /% ≥
1.Environmental protection （eg.:waste landfill,toxic substances disposal site, hazardous material warehouse,ect.）
2.Water conservancy (eg.:canal and revetment,seepage-proofing for river,lake and reservoir, etc.)
3.Municipal engineering (eg.:metro, undergrounds project and roofing reservoir for buildings , water-tightness for roof garden, sewage piping, etc.)
4.Landscape architecture (eg.:artificial lake,pool,revetment,pool substrate for golf course etc.)
5.Petrochemical industry (eg.:chemical plant, oil refinery, gas storage tank, chemical reaction pool, sedimentation tank lining, secondary lining, etc.)
6.Mining industry (washing pool, pool heap leaching, heap yard, dissolving tank, tank, storage area,anti-seepage for the bottom line of the tailings pond , etc.)
7. Agriculture industry (reservoir, drinking pool, impounding reservoir, anti-seepage for irrigation systems)
8. Aquaculture industry (fish ponds, shrimp ponds lining, sea cucumber circle slope protection, etc.)
9. Salt industry (crystallization pool of salt field, brine pool cover, salt-film, etc.)
1) Prevent the packaging from damage, store product in ventilated, dry place, stack height should not exceed 5 roll layers.
2) Do not expose to sunlight, do not contact with acid, alkali, oil & organic solvent, isolated from heat source.
3) Shelf life is one year under normal storage & transportation condition.