See more information about waterproofing roofs on DUROSTICK YouTube channel Acrylic elastomeric waterproofer (liquid rubber)
PROPERTIES Brushable elastomeric acrylic waterproofer for roofs with long-lasting durability. It creates a white protective membrane, without seams nor joints, with excellent adhesion to various substrates. Due to its high modulus of elasticity, it can absorb intense expansions and contractions, without the necessity for additional reinforcement (mesh). It protects surfaces from moisture that can adversely affect concrete rebars. Certified by the University of Athens (Department of Physics, Division of Applied Physics), as `Cool’ material of low thermal conductivity and high reflectivity. Classified as product for surface protection of concrete surfaces per EN 1504-2. Why should I choose the DS-220 to waterproof my roof? • Distinguished for its remarkable resistance to adverse weather conditions, maintaining its properties in temperatures ranging from -30°C to +90°C. • It is resistant to the corrosive gases of the atmosphere, such as carbon dioxide, sulfur oxides, chlorides, etc. • It contains new age UV filters, contributing to its long-lasting resistance against the destructive effects of solar radiation. • It provides walkable surfaces that do not stick. • It can effectively cover substrate cracks and it is not affected by the (possible) creation of new ones on the substrate itself. • It presents excellent resistance, even to standing water. • It reduces the temperature absorption of the roof slab up to 20%, due to its reflective action (80%), resulting from its exceptional whiteness. • It reduces the indoor temperature of spaces under the roof throughout the sumTECHNICAL SPECIFICATIONS: • Form-Color: Viscous paste-White • Density: 1.40±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 400% • Full tightness: 7 Αtm per DIN 1048 Acrylic elastomeric waterproofer (liquid rubber)
mer and keeps it watertight in the winter. Consequently, it also contributes to the reduction of energy consumption for cooling or heating. • It reduces the danger of moisture concentration to the substrate and consequently the creation of mold, because it is vapour permeable. • Ideal waterproofing solution for surfaces with installed (or to be installed in the future) photovoltaic modules. • It maintains its whiteness and does not chalk. • It cleans easily only with water. APPLICATIONS DUROSTICK DS-220 is applied with ease on terraces and roofs to be covered with clay roof tiles, on roof corners and ridges, on lead lined roof valleys, balconies and built-in planters. It is recommended for substrates made from concrete, terrazzo, for wood surfaces, existing asbestos-based mortars, cement boards and well-adhered asphaltic-based roofing material. USE Preparation of cementitious surface without any waterproofing: Using a stiff broom and water, thoroughly clean any loose sections, dust and mud. Remove any black spots using DUROSTICK D-95 CLEANER or a bleach - water solution, at a dilution ratio of 1:1. Continue by thoroughly rinsing 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. • Capillary water absorption 0.01kg/m2.h0,5 (EN 1062-3, requirement EN 1504-2: w <0.1) • Permeability sD to CO2, per EN 1062-6: sD > 50m • Water vapour permeability: sD per EN ISO 7783: sD = 1.17m (water vapour class I, sD <5m) • Adhesion to concrete per EN 1542: 1.2 N/mm² (requirement for flexible systems FOR ROOFS, BALCONIES, BUILT-IN PLANTERS
Preparation of surfaces coated with waterproofing product(s): • Detached torch-down roofing material: Remove them using a wide roofing scraper and roofing torch or other mechanical means. • Well adhered existing torch-down roofing materials, only require a first coat of DS-220 diluted 5% with water and a second coat undiluted applied crosswise. • Detached or deteriorated elastomeric waterproofers, must be removed using a wide roofing scraper or other mechanical means. REPORT OF REFLECTIVITY MEASUREMENT, EMISSIVITY COEFFICIENT & THERMAL CONSTANTS OF THE UNIVERSITY OF ATHENS, PHYSICS DEPARTMENT Specimen Reflectivity in solar radiation SR(%) Emissivity coefficient in the infrared radiation e (±0.02) Reflectance index to solar radiation SRI DUROSTICK DS-220 89 0.83 112 Specimen Thermal conductivity (W/mK) Thermal dissipation (mm2/s) Specific Thermal capacity (ΜJ/m3K) DUROSTICK DS-220 0.535 0.341 1.570 TOOLS FOR THE REMOVAL OF DETACHED ELASTOMERIC WATERPROOFING PRODUCTS without traffic: 0.8 N/mm²): • Impact resistance per EN ISO 6272-1: 10Nm (class II) • Application temperature: From + 8°C up to +30°C • Temperature resistance: From -30°C to +90°C
V.O.C. (Volatile Organic Compounds): Limit value of maximum V.O.C. content according to EU (Directive 2004/42/ΕC) for the particular product (category A/c: `Coatings for exterior walls of mineral substrate’, Τype WB): 40gr/lt (2010). The ready to use product contains maximum 17gr/lt V.O.C. • Detached elastomeric materials, that are not visible, can be found using a garden hose. Pour water on the roof surface from about 1 meter high. Notice the change of the sound the water makes when it hits the detached parts of the waterproofing and mark them. Cut the detached sections using a razor blade, or other mechanical means and scrape the defective material off. Application: For applications on cementitious surfaces, and by using a roller, first apply the micromolar stabilizer AQUAFIX, or the SOLVENT BASED PRIMER, diluted 30% with THINNER 101 of DUROSTICK. Alternatively, if the roof does not have any deteriorated sections, dilute DS-220 with water, at a ratio of 1:1 and use it as primer. Once the priming product dries, locate any possible hairline cracks (0.1- 0.4mm). Individually coat each crack with one or two layers using the undiluted product, to seal them completely. If the width of the cracks is between 0.5-1mm, it is recommended to seal them using the ACRYLIC CAULK or the elastomeric sealant, DS POLYMER of DUROSTICK, using a putty knife. Continue by applying two coats of DS-220 over the cracks to complete their sealing treatment. Complete the surface waterproofing by applying two coats over the entire area using undiluted DS-220 of DUROSTICK. Apply the second coat crosswise to cover any minor substrate imperfections, once the first one is completely dry and walkable. USEFUL TIPS - NOTES • Mix well before use. • Avoid applying the waterproofer if there is a possibility of rain for the next 24 hours. www.durostick.com
LONG-TERM ROOF WATERPROOFING SYSTEM Cleaning Fisrt coat of DS-220 Primer DUROSTICK AQUAFIX Second coat of DS-220 (crosswise) DS-220 AQUAFIX Acrylic elastomeric waterproofer (liquid rubber)
Realistic sample of DS-220 waterproofer application (2 coats, crosswise) CONSUMPTION: 1.0-1.5kg/m² for two coats, depending on the substrate PACKAGING: Container of 5kg, 15kg, 25kg ASSURED WATERPROOFING SYSTEM With the waterproofing system you achieve: ≥ Powerful adhesion ≥ Long-term durability ≥ Elimination of future detachments
ADVANTAGES • Remarkable resistance to adverse weather conditions • Actively flexible from -30°C to +90°C • Unaffected by constant moisture and standing water • With UV filters, for resistance against solar radiation • Unaffected by atmospheric pollutants • Water vapour permeable • Reflective, reduces surface temperature • Seals cracks and prevents them from reappearing • Guaranteed result • Certified as ‘Cool’ material (low thermal conductivity and high reflectivity) by the University of Athens (Department of Physics, Division of Applied Physics) www.durostick.com DUROSTICK S.A. ATHENS: ASPROPYRGOS, ATTICA, GR: 193 00, Tel.: +30 211 60 03 500-599, Fax: +30 210 55 99 612 THESSALONIKI: INDUSTRIAL PARK-SINDOS, S.B. 44, STREET DA 10, GR: 570 22, Tel.: +30 2310 795 797, +30 2310 797 365, Fax: +30 2310 797 367, www.durostick.com, e-mail: info@durostick.com 06/2023 Acrylic elastomeric waterproofer (liquid rubber) technical@durostick.com
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