PROPERTIES Acrylic, elastomeric and solvent-free waterproofing product for roofs. It creates a uniform, impervious to water membrane, without seams nor joints. It perfectly covers hairline and micro cracks, while it prevents their reappearance. It maintains its flexibility at temperatures ranging from -20°C to +80°C. It does not allow for the creation of moisture related problems due to any future expansion and contraction of the coated surfaces. Certified by the University of Athens (Department of Physics, Division of Applied Physics), as ‘Cool’ material of low thermal conductivity and high reflectivity. Its brilliant white color significantly reduces the heat absorption from the roof slab and improves its energy efficiency. Classified as product for surface protection of concrete surfaces per EN 1504-2. APPLICATIONS DUROSTICK No39 easily applies on terraces and roofs to be lined with clay roof tiles. It is also suitable for corners, edges and lead lined roof valleys. Great for spot crack sealing. USE New surface preparation: Using a stiff broom and water, thoroughly clean any loose sections, dust and mud. Remove all black spots (mold/mildew) using DUROSTICK D-95 CLEANER or a bleach - water solution, at a dilution ratio of 1:1. Follow by rinsing thoroughly with plenty of water. Surfaces to be waterproofed must be dry and should not get wet for the next 24 hours, in order to avoid surface moisture from being trapped. Preparation of surfaces coated with waterproofing product(s): •Detached torch-down roofing: Remove them using a wide roofing scraper and roofing torch. •Well adhered existing torch-down roofing material, only require a first coat of No39, diluted 5% with water and a second, crosswise coat undiluted to complete the waterproofing. TECHNICAL SPECIFICATIONS: • Density: 1.45±0.05kg/lt • Elongation at break, (per ASTM D 412): After 8 days of curing and at 1mm thick membrane, the elongation at break was determined at 300% • Full tightness: 7 Atm per DIN 1048 • Capillary water absorption: 0.01kg/m2. h0,5 (EN 1062-3, requirement EN 1504-2: w< 0.1) Acrylic elastomeric waterproofer for flat roofs 39 Νο
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