AQUATA SEAL 300 PU
One component, liquid-applied, polyurethane based, roof coating which cures with the humidity of atmosphere to form a strong, elastic and impermeable to water, membrane.
PACKAGING:
Lids of 1 kg, 6 kg, 25 kg
COLOR:
CHARACTERISTICS:
Consumption
Minimum consumption: 1.9 kg/m2 (2.5 kg/m2 with polyester fleece)
Uses
APPLICATION FIELDS
- Long-lasting waterproofing and protection
- Highly resistant to stagnant water. Does not peel off.
- Forms a seamless membrane without joints which is 100% bonded to the substrate. Even when damaged, water does not spread to the entire surface of the substrate, and the membrane can easily be repaired locally.
- High mechanical properties such as tensile strength, tear strength and abrasion resistance. Suitable for pedestrian traffic.
- Water vapour permeable. Does not cause moisture accumulation on the ceiling.
- Does not release any dangerous substances once fully cured.
- Low free monomer isocyanate content.
Advantages
ADVANTAGES
- Very good resistance to weather conditions: rain water, frost, UV rays.
- Highly elastic properties even at very low temperature (-40 OC). Very good crackbridging properties.
- Excellent thermal resistance. The membrane does not turn soft or tacky at high temperatures (+80OC).
- Excellent adhesion on several substrates without use of primer. Special primers are available to cover almost all type of substrates
- Good resistance to chemicals and detergents.
- High reflection of solar energy (only in white colour) and significant reduction of the temperature inside the building during summer.
- Easy to apply by brush, roller or airless spray.
DIRECTIONS OF USE
SUBSTRATE PREPARATION
The substrate should be stable, solid, dry and free of dust, loose particles and all kinds of contaminants. The surface must be dry, clean, free of dust, loose materials, salts or oils. AQUATA SEAL 300 PU should generally be applied on dry and solid surfaces. Old coatings should be removed. The substrate should not be washed with water prior to the application of the coating. A moisture content of less than 5% is generally recommended for concrete surfaces. Joints and cracks should be sealed with AQUATA PU 35 joint sealant.
PRIMING
AQUATA SEAL 300 PU can be applied to a clean and dry concrete surface without the use of a primer. However, when an acrylic or hybrid sealant has previously been applied to the surface, in order to increase adhesion we recommend the prior application of the one-component polyurethane primer MST 30 PU. In any case, the application surface of AQUATA SEAL 300 PU must be well dried
APPLICATION
AQUATA SEAL 300 PU is applied by roll, brush or air-gun in 2-3 layers. For improved mechanical and crack-bridging properties, it is recommended to apply AQUATA SEAL 300 PU together with polyester fleece (of 120 gr/m2). The polyester is applied on top of the freshly laid first coat of AQUATA SEAL 300 PU, before the application of the second and the third layer. The use of AQUATA SEAL 300 PU together with polyester fleece is highly recommended for sealing the areas of joints and cracks as well as the corners between the floor and the wall or any other connection such as chimneys, bases of solar panels, etc.
Furthermore, the use of AQUATA SEAL 300 PU in combination with polyester fleece is also recommended for waterproofing roofs with cementitious screeds which have the tendency to crack. Time interval between each coat is at least 3 h and not more than 48 h. When primer is applied, the first coat of AQUATA SEAL 300 PU can be applied not earlier than 1 hour and not later than 24 hours from the application of the primer.
The drying time is significantly affected by the environmental conditions (temperature and humidity).For application by airless spray, it is suggested to dilute the product with Xylene up to 10%. Never dilute the product with water.
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