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KIN FLAGO DR
High-Density Polyethylene Waterproofing Membrane

KIN FLAGO DR is a polymer prefabricated waterproofing sheet composed of an HDPE (high-density polyethylene) sheet as the base film, with one side coated with a polymer self-adhesive layer and a protective anti-adhesion particle layer. The self-adhesive layer in the sheet undergoes a cross-linking reaction with the cast-in-place concrete, while physical adsorption and dovetail effects occur during the cement curing process, promoting a strong bond between the sheet and the cast-in-place concrete. This forms a fully adhered waterproof layer on the surface of the concrete structure, blocking water seepage channels and improving the building's waterproofing quality.

Application
Key Benefits
Install Guide
Storage

KIN FLAGO DR Application


Applicable to the floor slabs and outer walls with inner waterproof layers of various underground buildings, as well as waterproofing projects for caverns, tunnels, subways, and municipal construction.

KIN FLAGO DR Key Benefits


  • Excellent mechanical properties, with rolls and sheets made of HDPE (High-Density Polyethylene).  

  • Good adhesion, using pre-laid inversion bonding method to form full-bond waterproof structure with the concrete structure.  

  • Shortened construction period, dry-lay method can be applied to moist substrates.  

  • No waterproof protection layer required, steel reinforcement can be tied directly and concrete poured.  

  • Excellent impact and puncture resistance.  

  • Resistant to acids, alkalis, salts, and chloride ion erosion.

KIN FLAGO DR Install Guide


  • The membrane particle side is facing up, and the empty laying method is used to roll on the base layer, without gluing and fixing.

  • During vertical surface construction, mechanical fastening with shot nails and washers can be used within 10–20mm of the self-adhesive edge, at intervals of 400–600mm, ensuring that subsequent roll material covers the nail holes.

  • Roll material overlap treatment:

  • Long edge overlap: Remove the separation film from the overlapping edge, directly self-adhere, with a width ≥80mm, and press firmly with a roller.

  • Short edge overlap: Use polymer double-sided self-adhesive tape to butt splice, peel off the film from the centerline, adhere to the preceding and following rolls, and press firmly.

KIN FLAGO DR Storage


  • Store the product upright in a cool warehouse, retaining inner supports. Keep it on pallets with the original protective film intact. Stack no more than two pallets high, using dunnage between layers for isolation. 

  • Protect from direct sunlight, heat sources, freezing temperatures, organic solvents, and physical impact. 

  • The product is suitable for long-term storage when these conditions are maintained.

  • All information is nominal values at the time of manufacturing, and related performance properties are based on the "as manufactured" condition. Actual values may vary depending on application methods, substrate conditions, environmental factors, and specific product configurations.

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