A range by ETS Europe, Belgium.
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Polyurethane-bitumen liquid membrane

Hypertectum Duoflex 1K

Thixotropic one-component bitumen-PU membrane, applied in two coats.

Use it forWaterproofing and protection of roofs, foundations, basements, planter boxes, and bituminous membranes.
Apply withBrush or spatula.
Curing timeTack-free: 1.5-2.5 hours; Recoat: 3-24 hours. Tack-free values at 25 °C, 55% RH.
Coverage1.5 kg/m² in two coats.

Introduction

Hypertectum Duoflex 1K is a quick-curing, one-component, thixotropic, bitumen-extended polyurethane fluid. It forms a hydrophobic, elastic membrane with very strong adhesion to most types of substrates, including bituminous ones, and excellent mechanical and chemical resistance.

Technical properties

Hypertectum Duoflex 1K · See the technical data sheet for test conditions and full specifications.
PropertyValue
Service temperature−40 to +80 °C
Hardness35 Shore A
Tensile strength at 23 °C3 N/mm²
Elongation at break> 600%
Adhesion to concrete> 2 N/mm² (with primer)

System build-up

  1. 01Prepared substrate
  2. 02primer if required after adhesion testing
  3. 03Hypertectum Duoflex 1K in two coats

Total consumption: 1.5 kg/m². Do not leave exposed to UV. Confirm the project-specific protection and detailing with ETS Europe.

Hypertectum Duoflex 1K — full specification

Preparation

Clean the surface with a high-pressure washer where possible. Remove oil, grease, wax, cement laitance, loose particles, mould-release agents, and old cured membranes. Fill surface irregularities with a suitable product.

Standard concrete substrate conditions: strength ≥ C20/25, moisture ≤ 5%, temperature 5-35 °C, relative humidity < 85%.

Application

Apply by brush or spatula in two coats to reach a total consumption of 1.5 kg/m².

Excellent adhesion to most substrates without a primer, though testing is advised. If needed, select a primer from the Hypertectum range.

Limitations

Not recommended for unsound substrates or UV-exposed applications.

Cleaning

Wipe tools with paper towels, then clean with a suitable solvent.

Storage

At least 12 months in original unopened pails in a dry place at 5-25 °C. Once opened, use as soon as possible.