1. Product description
HDPE waterproof sheet(DYP-819) is a high density polyethylene sheet that using ethylene, vinyl acetate co-polymer/polyethylene as main raw material, adding with other modification additives.
2. Product performance
Executive standard: GB18173.12012 Polymeric Waterproof Materials Section I: Sheet
Tensile strength /Mpa
Elongation at break /%
Tear Strength/（kN/m） ≥
0.3Mpa, no leakage
-35℃, no crack
Heat-treatment size change /mm
Lap-joint peeling strength
Standard /N/mm ≥
Retention rate after water soaking (23℃*168h) /% ≥
High tensile strength
high elongation at break;
Resistance to cracking due to water swelling and structure rupture.
Resistance to cold bending;
Good waterproof durability to environment temperature changes.
Easy construction, highly adapted to the substrate surface because of its soft texture.
Resistance to mildew and acid & alkali corrosion,
High adaptability to hot gas welding , after welding, the product is seamless and reliable and durable in waterproof effect .
No volatile solvent or toxic gases, environmental-friendly.
4. Where to use
Environmental engineering : refuse landfill, coal ash dam,solid waste dump,etc;
Land reclamation engineering, wharf engineering;
Transportation engineering: railway, road, highway, tunnel, oil transportation,Infusion channels,etc;
Water project:drainage system,dam,milldam,liquid reservoir,etc;
Building waterproofing: Roof, basement, underground warehouse, underground parking,etc;
5.Packing & Storage
Keep the packaging complete and without damage, store product in ventilated, dry place,
Stack height should not exceed 5 roll layers.
Avoid direct sunlight, acid, alkali, oil & organic solvent contact, and be away from heat source.
Storage period is one year under normal storage & transportation condition