IZOZENĀ® FLEXPRO BITUPROOF 320

IZOZENĀ® FLEXPRO BITUPROOF 320 is a dark brown emulsified bitumen liquid reinforced with latex rubber. It is formulated from selected raw materials to provide a high-build elastomeric waterproof and protective coating for concrete and masonry.

Key Characteristics:

  • Elastomeric – bridges minor cracks in substrates

  • Resistant to chloride and sulphate ion attack in groundwater

  • Single component, easy to use

  • Applied with brush, roller, broom, or squeegee

  • Economical and cost-effective

  • Solvent-free, non-flammable, and asbestos-free

  • Rot-resistant with long-term durability

  • Simple, low-cost application process

Technical data

PropertyTest StandardValue
Form–Liquid
Color–Dark Brown
Density–1.00 ± 0.02 g/cm³
Solid Content–≄ 50%
Dry Time–3 – 5 hr
Application Temperature–+5°C to +45°C
Tensile StrengthASTM D412≄ 0.15 MPa
Tear StrengthASTM D624> 1.5 kN/m
Bond StrengthASTM D4541≄ 1.0 MPa
Resistance to HeatASTM D2939Pass
Freezing ResistanceASTM D2939Pass
Water Vapor PermeanceASTM D3747≤ 2 ng/PaĀ·sĀ·m²
VOC–< 40 g/ltr

Directions for Use

1. Substrate Preparation
  • Ensure the surface is clean, free of oil, grease, dust, or loose materials.

  • Plug water leaks using IZOZENĀ® FLEXPRO FASTFIX-100 (rapid-setting leak-plugging mortar).

  • Fill cavities and smooth surfaces with IZOZENĀ® FLEXPRO DUROCRETE/DUROCRETE-F or a cement mortar improved with IZOZENĀ® FLEXPRO LATEX.

  • Cut starter bars/spacers 3 cm into concrete and fill holes.

  • Open existing joints in a V-shape (3 cm depth) before filling.

  • Round off corners/wall-floor junctions with a fillet (5–6 cm sides).

  • Masonry walls: fill joints or apply a LATEX-modified cement mortar layer first.

  • Old basements: remove plaster 50 cm above water level before waterproofing.

2. Application
  • Apply two coats. Second coat should be applied at right angles to the first.

  • Allow minimum 3 hours drying between coats.

  • Application tools: brush, roller, broom, or squeegee.

  • Do not expose coated surfaces to rain or ponding water for at least 72 hours.

Primer Coat
  • Normally not required.

  • For dusty surfaces: use BITUPROOF 320 diluted with equal parts of clean water. Allow to dry before applying full coats.

Fields of Application

IZOZENĀ® FLEXPRO BITUPROOF 320 is suitable for:

  • Retaining walls

  • Shaded or tiled roofs

  • Underground concrete foundations

  • Bathrooms, kitchens, and other wet floor areas

  • Basement walls

  • Concrete slabs

  • Waterproofing joints with minor live cracks

  • As a curing compound for fresh concrete

  • Protective coating for normal and galvanized steel plates