HYDROLAST-PU | Balcony floor waterproofing
Liquid, white polyurethane waterproofing membrane, 800% elasticity
Terrace floor waterproofing
Kitchen floor waterproofing
Waterproofing the garage floor
HYDROLAST-PU | Liquid polyurethane waterproofing membrane.
HYDROLAST-PU is a viscous one-component polyurethane-based liquid that polymerizes after application and forms an elastic membrane with high adhesion to all building substrates.
HYDROLAST-PU description:
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polymerizes upon contact with atmospheric moisture and creates a single (seamless), elastic, waterproof membrane;
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completely waterproofs horizontal and vertical surfaces from the outside , providing resistance to positive water pressure;
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has high mechanical strength and abrasion resistance ;
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applicable to tanks with stagnant water;
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due to excellent elasticity, they can cover cracks up to 2 mm;
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vapor-permeable and allows structural elements to "breathe";
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provides high resistance to UV and reflects the sun's rays well (providing good thermal insulation in summer) ;
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does not soften (“does not flow”) in summer and does not harden (does not become brittle) in winter, since it retains its mechanical properties at temperatures from -30 to +80 ° C.
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HYDROLAST-PU can be applied to both absorbent (concrete, cement mortar, wood) and non-absorbent substrates (metals, asphalt, ceramic tiles, old acrylic coatings).
Foundation waterproofing
HYDROLAST-PU is used for:
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waterproofing and protection of concrete structures such as bridges, tunnels, foundations, etc.;
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waterproofing of terraces, balconies, inclined and flat roofs;
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UV and weather protection of bituminous waterproofing membranes;
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waterproofing under tiles on balconies, bathrooms, kitchens, etc.;
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protection of heat-insulating layers of polyurethane foam;
- waterproofing florists.
Areas of application for HYDROLAST-PU
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Waterproofing the floor in the garage.
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Basement floor waterproofing.
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Waterproofing on the loggia.
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Balcony waterproofing.
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Floor waterproofing in a private house.
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Floor waterproofing in the apartment.
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Bathroom floor waterproofing.
- Floor waterproofing in car service.
Specifications |
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| Compound | Polyurethane resin |
| Elongation at break (ASTM D 412) | 800±80% |
| Tensile strength (ASTM D 412) | 7.45 ± 0.30 N/mm2 |
| Vapor permeability (ISO 9932:91) | 25.8 ± 4.4 g/m2 d |
| Waterproofing (28 1928 Α) | No leakage |
| Adhesion to concrete (ASTM D 903) | >2.5 N/mm2 (concrete pull-out) |
| Shore A hardness (ASTM D 2240) | 65±5 |
| Reaction to fire (ΕΝ 13501-1) | Class Ε |
| Spark reaction and thermal radiation (DIN 4102-7) | Yes |
| Wind load resistance (ΕΟΤΑ, TR-004) | >1.84 N/mm2 (concrete) >0.38 N/mm2 (bitumen membrane) |
| Repairing cracks at +23°C (EOTA, TR-008) | Yes |
| Repairing cracks at -10°C (EOTA, TR-008) | Yes |
| Abrasion resistance (ΕΟΤΑ, TR-011)) | Good |
| Anti-corrosion properties (No. 53420) | Good ones |
| Rain time (+20°C, 50% RH) | 3-4 hours after application |
| Walking Time (+20°C, 50% RH) | 12-18 hours |
| Time of final polymerization (+20 °С, relative humidity 50%) | 7 days |
| Chemical resistance | Good: solutions of acids and alkalis (10%), common detergents, oils and sea water. |
Surface preparation
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The substrate must be solid, dry, free from dust, oils and contaminants that prevent the adhesion of the HYDROLAST-PU membrane.
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Old coatings, dirt, vegetation should be removed with abrasive tools.
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Any surface irregularities must be smoothed out.
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Any loose particles or pieces should be removed by sanding.
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Substrate humidity should not exceed 4%, and the relative humidity of the environment should be less than 80%, and the temperature should be between +10 °C and +40 °C.
In particular, cementitious substrates must comply with the following conditions:
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surface strength ≥ 1.5 N/mm²;
- humidity ≤ 5% (concrete age at least 28 days).
WARNING! Do not wash the surface before applying HYDROLAST-PU with water.
Repair of cracks and expansion joints
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Cracks must be filled and construction or expansion joints must be filled with PU sealant ( VIMASEAL-PU or VIMAPUR 2K SL/TH .
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Effective sealing of existing cracks or seams is a condition for the successful application of HYDROLAST-PU .
Sealing (putty) of cracks
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Cracks are sealed by applying HYDROLAST-PU on a reinforcing PP mesh, the density of which should not exceed 60 g/m², about 20 cm wide, covering 10 cm to the left and 10 cm to the right of the center line of the crack.
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After cleaning, the surface must be primed with VIMEPOX PRIMER-W epoxy primer.
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In some cases,VIM PRIMER-S can be used as a primer.
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After 3-4 hours and after the primer has dried, apply the first coat of HYDROLAST-PU.
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Lay the reinforcing PP mesh over the crack as above.
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The mesh is pressed, for example, with a metal roller and embedded in liquid HYDROLAST-PU.
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Finally, a second (finish) layer of HYDROLAST-PU is applied to create a single seamless coating - the membrane.
Sealing expansion joints
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If the seam is too narrow, it must be opened (embroidered) to the desired size using a cutting wheel (grinder).
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The depth of the seam should be from 5 to 15 mm.
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The width/depth ratio of the expansion joint must be 2:1.
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After priming VIMEPOX PRIMER-W, apply HYDROLAST-PU with a 20 cm wide brush centered on the joint.
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A strip of non-woven polypropylene 20 cm wide is placed on the wet material and with a suitable tool (eg spatula) the fabric is pressed deep into the seam so that the inner surface of the seam is covered with fabric.
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Then, HYDROLAST-PU is again applied over the strip until it is completely covered with it.
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Then a suitable polyethylene tie is inserted into the joint , and the remaining upper space of the joint is sealed with VIMASEAL-PU polyurethane mastic.
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Full surface waterproofing may be continued 12 hours after the initial polymerization of the sealing compounds has been completed.
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The same procedure applies when the concrete has cracks greater than 2mm wide, so it should be opened up and sealed with VIMASEAL-PU.
Primer
To achieve perfect adhesion of HYDROLAST-PU to the substrate, a water-soluble epoxy primer VIMEPOX PRIMER-W is preliminarily applied to the surface (can be applied on a damp surface up to 80%) on porous, absorbent surfaces such as concrete, cement mortars, wood, etc. .
Application of waterproofing membrane
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The application of HYDROLAST-PU is carried out after the VIMEPOX PRIMER-W has dried (at least after 4 hours) and in any case within 24 hours.
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Before use, the product must be mixed - homogenized with a low-speed mixer.
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HYDROLAST-PU is poured onto the primed surface and rolled out with a roller or rubbed with a brush.
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A second layer is applied after 12-24 hours.
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Airless application is used for large area substrates.
RECOMMENDATION
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It is recommended to reinforce - reinforce HYDROLAST-PU with non- woven polypropylene over the entire surface to be sealed.
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It is essential that the membrane be reinforced at critical points such as floor to wall joints, pipe bends or ventilation ducts.
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ATTENTION : for optimum results, the temperature during application of HYDROLAST-PU should be between + 5 °C and + 35 °C.
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Low temperatures slow down the curing process, while high temperatures speed it up.
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High humidity can affect the membrane surface.
Consumption
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The consumption of VIMEPOX PRIMER-W is 150-300 g/m² depending on the absorbency of the substrate.
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The average consumption of HYDROLAST-PU, in the case of a surface of normal porosity and absorbency, is 1.2 kg/m² for two layers, equivalent to a membrane thickness of approximately 750 μm, and 1.5 kg/m² for three layers, equivalent to a membrane thickness of approximately 1,150 mm.
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If the waterproofing membrane is reinforced over the entire area, it will require three layers with a total consumption of approximately 1.8-2 kg/m² and a membrane thickness of more than 1 mm.
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ATTENTION: the consumption of HYDROLAST-PU must not exceed 0.6 kg/m² per coat.
- Applying too much material may cause the coating to "swell".
Tool Care
The tools used in the work are washed with water until HYDROLAST-PU is completely dry.
Storage
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HYDROLAST-PU should be stored in a dry and shady place for a maximum of 12 months from the date of manufacture.
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The storage temperature must be between +5°C to +30°C.
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High temperatures adversely affect the shelf life of the product.
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The product must remain in the original unopened jar.
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Opened containers should be consumed the same day.
Note
Before applying the material, it is recommended to make a test application on the selected substrate.
