Product properties
Polyurethane masonry adhesive is intended for the construction of walls with thin joints, made of:
– ceramic blocks, polished, type P, vertically hollow, group 2 (with hollows with a volume of 25 to 55% of the block volume), with an average compressive strength of at least 15 N/mm2, category I, with dimensional deviations not greater than for category T2+ and with a maximum dimensional span not greater than for category R2+, with a deviation from the flatness of the supporting surface not greater than 0.3 mm and a deviation from the parallelism of the supporting surface not greater than 0.6 mm, according to the PN-EN 771-1+A1:2015 standard,
– ceramic blocks, polished, type P, vertically hollow, group 3 (with hollows with a volume of 25 to 70% of the block volume), with an average compressive strength of at least 7.5 N/mm2, category I, with dimensional deviations not greater than for category T2+ and with a maximum dimensional span not greater than for category R2+, with a deviation from the flatness of the supporting surface not greater than 0.3 mm and a deviation from the parallelism of the supporting surface not greater than 0.6 mm, according to the PN-EN 771-1+A1:2015 standard,
– ceramic blocks, polished, type P, vertically hollow, with hollows filled with mineral wool, with an average compressive strength of at least 7.5 N/mm2, category I, with dimensional deviations not greater than for category T2+ and with a maximum dimensional span not greater than for category R2+, with a deviation from the flatness of the supporting surface not greater than 0.3 mm and a deviation from the parallelism of the supporting surface not greater than 0.6 mm, according to the PN-EN 771-1+A1:2015 standard,
– autoclaved aerated concrete blocks with an average compressive strength of at least 4 N/mm2, TLMB dimensional deviation category, according to the PN-EN 771-4+A1:2015 standard, whereby blocks should be used whose maximum deviations of flatness of the supporting surfaces are not greater than ± 0.3 mm, and the maximum deviations of parallelism of the supporting surfaces are not greater than 0.6 mm,
– vertically hollow silicate blocks, group 1 (with hollows with a volume of up to 25% of the block volume), with an average compressive strength of at least 15 N/mm2, with dimensional deviations not greater than for category T2, according to the PN-EN 771-2+A1:2015 standard, whereby blocks should be used whose maximum deviations of flatness of the supporting surfaces are not greater than ± 0.3 mm, and the maximum deviations of parallelism of the supporting surfaces are not greater than 0.6 mm.
Application
The first layer of masonry units must be laid on a cement-lime mortar to precisely level the surface, which will be bonded using a polyurethane mortar for thin joints to the next layer of masonry units. Thoroughly clean the working surface of any substances that reduce mortar adhesion, and moisten the working surface with water using, for example, a wide brush or sprayer. Surfaces that may become dirty with polyurethane masonry adhesive should be protected, for example, with foil. The can should be at a temperature of approximately 20°C; if the can is too cold, it should be warmed, for example, by immersing it in warm water at a temperature of approximately 40°C (avoid hot or boiling water). Shake the can vigorously (for approximately 30 seconds) to thoroughly mix the components. Screw the gun onto the can; the working position during installation is the can upside down. Apply the masonry adhesive in one bead with a diameter of 4-5 cm in the center of a masonry unit up to 12 cm wide. For masonry units over 12 cm wide, apply masonry adhesive in two parallel beads 1/3 of the width of the masonry unit from the wall face. Apply masonry adhesive to the long side of the masonry unit. The next layer of masonry units should be laid on top of the previously applied layer of thin-joint mortar, so as not to exceed the open time of the masonry adhesive under application conditions (dependent on temperature and humidity). When working with the five building materials in positive temperatures, and when working with autoclaved aerated concrete blocks in sub-zero temperatures, the optimal time for laying the next layer of masonry units is 3 minutes after applying the mortar. Masonry adhesive in combination with class 3 ceramic blocks can be applied and used at a temperature of +5°C to +30°C ( , in other cases, masonry should be carried out in the temperature range from -5°C to +30°C . Application of polyurethane mortar at negative temperatures when gluing silicate blocks and polished ceramics, apply the next layer of masonry elements immediately after applying the adhesive. After applying the masonry element, press it to obtain an even and thin joint. Correction of the position of the masonry element can be made in the case of silicate blocks and aerated concrete blocks, no longer than 3 minutes after applying the mortar. Once laid, the layer of polished ceramic masonry elements should not be lifted or moved. In the event of detachment of the masonry element, the adhesive should be reapplied. Vertical application of masonry adhesive on the side walls of the masonry element is recommended to eliminate thermal bridges and in the corners and connections with partition walls. Once the masonry adhesive has fully cured, it should be protected from UV radiation, e.g. by plastering the walls or applying a layer of insulation.
When carrying out work, the conditions for the safe use of polyurethane masonry adhesive given by the Manufacturer in the safety data sheet prepared in accordance with Regulation (EC) No 1907/2006 (as amended) of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) must be observed.
Po zakończeniu aplikacji lub w przypadku przerwy w pracy dłuższej niż 15 min, należy końcówkę aplikatora oczyścić przy pomocy czyścika. Po usunięciu puszki z pistoletu aplikator również wyczyścić przy pomocy czyścika do pian poliuretanowych.
Fresh polyurethane adhesive can be removed using a cleaner or a solvent-soaked tissue. Cured polyurethane adhesive can only be removed mechanically.
As of August 24, 2023, appropriate training is required before industrial or professional use.
