Hybrid Polyurea Waterproofing

DryFiX Hybrid Polyurea Systems

Developed for professional waterproofing and floor coating applications, Hybrid Polyurea is a two-component, fast-curing, high-tech coating system produced through a special modification of polyurethane and polyurea resins. Offering a much more economical alternative compared to pure polyurea systems, this formula is environmentally friendly with its solvent-free structure. While it perfectly adapts to surface movements thanks to its high elasticity and crack-bridging capability, its fast-curing feature minimizes application times, allowing projects to be completed rapidly in all weather conditions.

Advantages of the System

• Ultra-Fast Curing: The system can be opened to traffic minutes after application.
• Eco-Friendly Formula: It is completely solvent-free and permeable to water vapor.
• Seamless and Jointless Insulation: Applied monolithically, it eliminates risky junction points.
• Maximum Elasticity: Retains its flexibility even at low temperatures and shows superior crack-bridging performance.
• High Adhesion: Offers excellent bonding strength even on difficult surfaces.
• Superior Durability: Shows high resistance to hydrolysis, mechanical abrasion, and many chemicals.

Main Application Areas

• Trapezoidal, sandwich panel, green roof, and garden terrace applications.
• Foundation, retaining wall, and tunnel waterproofing.
• Swimming pools, water tanks, water channels, and waste collection tanks.
• Parking lot floor coatings and waterproofing.
• Reinforced concrete and sheet metal surfaces.
• Protection of metals against corrosion.

Application Properties and Surface Preparation

Surface Preparation

For perfect adhesion, the application surface must be clean, dry, sound, and load-bearing. Any residues such as dust, oil, grease, and paint that would prevent adhesion must be completely removed; the surface temperature must be a minimum of +10 °C. Defects on the floor such as pits, breaks, and segregation must be repaired with DFR 2000 TIX before application.

Where necessary, mechanical abrasion processes such as shot blasting or milling should be performed, and the surface should be cleared of dust using industrial vacuums. Surface adhesion must be above 1.5 N/mm² and the moisture content must be below 4%. To prevent condensation risks, the floor temperature must be at least +3 °C above the calculated dew point.

Primer Application

• For Absorbent Surfaces: Dryfix DF PUR PRIMER 1K or Dryfix DF PUR PRIMER 2K
• For Hard and Normal Surfaces: Dryfix DFC 100

Mixture and Equipment Preparation

Preparation of Components: Before application, Component B (amine resin) must be mixed in the barrel for a minimum of 30 minutes until a homogeneous color is achieved, and this mixing process must continue during the application. The temperatures of Components A and B must be brought to the 65-75°C range before application. The product must never be diluted.

Spray Machine Settings: The system is applied using special spray machines that operate at high temperature and pressure.

• Component A (MDI Prepolymer) Temperature: 70-71 °C
• Component B (Amine Resin) Temperature: 67-68 °C
• Hose Temperature: 67-68 °C
• Machine Pressure: 140-180 bar

Application Steps: After all preparations are complete, polyurea is sprayed onto the surface in at least 2 coats to achieve a minimum thickness of 2 mm. Repairs of thin areas must be done within 5 hours following the application. Newly coated surfaces must be protected from mechanical impacts, water, and dew for at least 24 hours.

Consumption, Packaging, and Storage

Consumption: Approximately 1.0 - 1.1 kg/m² of product should be used for 1 mm thickness (A minimum of 2 mm application is mandatory).

Mixing Ratios

Important Application Notes and Warnings

• The product must only be applied by experienced professionals using two-component, high-pressure machines capable of heating and proportioning.
• Do not apply near operating air conditioning units. Volatile bituminous materials may stain the coating.
• Mixing ratio equipment must operate with a maximum tolerance of ±2%. Extra precautions must be taken in areas with negative water or water vapor pressure.
• Avoid contact with eyes, face, and skin; appropriate protective equipment (mask, goggles, gloves) must be used. Cured material can only be removed mechanically.

Technical Specifications and Performance Values