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DUROSTICK DS-220

Elastomeric waterproofer for roofs with 8 years warranty

DUROSTICK DS-220

DUROSTICK DS-220

TECHNICAL SPECIFICATIONS

Form – Color

 Viscous paste-White

Elongation at break
(per ASTM D 412)

After 8 days curing and at 1 mm thick membrane, the elongation at break was determined at 400%

Density

1.40±0.05 kg/lt

Full tightness

7 atm per DIN 1048

Moisture resistance

At least 8 years

Application temperature

From +8°C to +30°C

Temperature resistance

From -30 °C to +100 °C

 
 
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
VOC (Volatile Organic Compounds):
Limit value of maximum VOC content according to EC (Directive 2004/42/ΕC) for the particular product (category A/c: ‘Coatings for exterior walls of mineral substrate, type WB): 40gr/lt (2010). Ready to use product contains maximum 17 gr/lt VOC.
 

PROPERTIES

Brushable elastomeric acrylic sealant for terraces with long lasting durability.
It creates a white protective membrane, with excellent bonding to the substrate.  
Due to its high elasticity, it can absorb intense expansions and contractions, without the need for any additional reinforcement.
It protects surfaces against moisture which attacks the concrete rebars.Classified as product for surface protection of concrete surfaces (c) per EN 1504-2.

 

ADVANTAGES

 
•It offers 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, gases 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 it self.
•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% Cool material), resulting from its exceptional whiteness.  
•It reduces the danger of moisture concentration to the substrate, and consequently the creation of mold, because it is vapor permeable.
•Ideal waterproofing solution for surfaces with installed (or to be installed in the future) photovoltaic systems.
•It maintains its whiteness without any calcification problems.
•It cleans easily by water only.



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, and terrazzo, as well as for wooden surfaces.
It is also suitable for existing asbestos based mortars, cement boards and well-adhered asphaltic based roofing material. DS-220 functions as a system with THERMOELASTIC COLOUR.
When they are both applied to the roof and the walls of a house, they help reducing the temperature of the indoor spaces of the outdoor coated surfaces up to 20% (providing the existence of energy efficient frames).
Therefore they help reducing the energy consumption for heating and cooling for up to 30%.

USE

1. New surface preparation
Using a stiff broom and water, remove any loose materials and sludge. Remove black stains using DUROSTICK D-95 CLEANER or a bleach - water solution, at a mixing 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.
2. Existing surface preparation
•Detached torch-down roofing: Remove them using a wide roofing scraper and roofing torch or other mechanical means.
•Well adhered existing torch-down roofing material, only require a first  coat of DS-220, diluted 5% with water and a second coat undiluted applied crosswise.
•Remove detached or deteriorated elastomeric waterproofers, using a wide roofing scraper or other mechanical means.
•Detached elastomeric material, 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 and scrape the defective material off.
3. Application: Using a roller, first apply the micromolar stabilizer, AQUAFIX undiluted, or the SOLVENT BASED PRIMER, diluted 30% with THINNER 101 of DUROSTICK. Alternately, dilute DS-220 with water, at a ratio of 1:1 and use it as primer, assuming that the roof does not have any deteriorated sections. Once the priming product dries, locate any possibe hairline cracks (0.1-0.4mm). Individualy coat each crack with one-two layers,to seal them completely. If the width of the cracks is between 0.5-1mm, it is recommended to seal them using the DUROSTICK ACRYLIC CAULK or the elastomeric sealer, ACRYLAT, 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 DUROSTICK DS-220. Apply the second coat crosswise, once the first one is completely dry and walkable.



ATTENTION

Avoid the application of the waterproofer when there is a possibility of rain within the next 24 hours.

CONSUMPTION


1.0-1.5kg/m² for two coats, depending on the substrate.

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STORAGE

Store in places protected from frost for a minimum of 24 months after production date.

SAFETY DIRECTIONS

This product, based on current European and National legislation, does not require any hazardous material label.
It is however recommended to keep out of reach of children.If swallowed, seek medical advice immediately and show the container or label.

PACKAGING

5, 15, 25kg containers