DescriptionComensflex8269 is a one component, moisture curable PU
(polyurethane) waterproof coating. It is an isocyanate polymer,
which before operation, it is a type of amorphous liquid, and after
operation, it reacts with moisture in the air and then create a
flexible and seamless waterproof layer. It has high tensile
strength, good weather resistance, oil resistance, abrasion
resistance, acid and alkaline resistance, adaptation to structure
pressure deformation, excellent waterproofing and adhesion
performances. The coating has a wide range of applications for
waterproofing for building and construction.UsageFor various kinds
of underground waterproof projects, such as subway, tunnel,
concrete base slab construction in basement, internal and external
walls, retaining wall. For various kinds of building's waterproof
projects, such as housetop, wash-room, basement, kitchen, swimming
pool, flowerbed, sluice gate, expansion joint, contraction joint,
wall pipe, aqueduct, etc.Technical DataThe product appearance and
physical property are all accord with enterprise standard 1-C PU
waterproof sealant(Q/FTGMH002-2010).S. NoItemData1Tensile strength
(MPa)≥1.92Elongation at break (%)≥5503Tear strength
(N/mm)≥104Bending performance, -40cNo cracks5Tack-free time (h)≤
66Dry time (h)≤12Detailed ImageApplicationThe polyurethane
waterproof coating Comensflex 8269 is self-leveling, which is
suitable for horizontal surface.Operation course as follows:1.
Basic surface treatment: Remove the earth, floating dust, perished,
oil and grout. The basic surface should be made level off, dry and
clean, rate of water content≤ 9%2. Primer application: For dry,
solid and clean concrete and mortar surface, the coating could be
applied without primer, or Comensflex8269 can be served as primer.
When cured, move to the next step.3. Local enhancement: Some parts
of construction should be treated ahead with the purpose of local
enhancement, such as expansion joint, snug spot and pipeline joint.
After the enhancement service, the overall waterproof operation can
be taken.4. The first coating operation: Scrape a layer of coating
uniformly with plastic or rubber scraping panel. The layer should
not be too thick or too thin (thickness is around 0.8mm). At the
beginning, the operation should be accorded with the size and shape
of the surface area, and make an overall plan of applying sequence.
Scrape for the second time after the first layer is cured. The
scraping method is same as the first time, but the scraping
direction of should be vertical with the first time. Scrape for the
third time if needed after the second layer is cured.Consumption:
Thickness=1mm, consumption is 1.2kg/m2; Thickness=1.5mm,
consumption=1.8kg/m2; Thickness=2mm, consumption is 2.4kg/m2.5.
Make a piece of protection or finish: When the coating operation is
finished but not completely cured, clean sand (the sand diameter is
no bigger than 2mm) can be scattered on the coating surface, in
order to enhance the adhesion between the coating layer and the
cement mortar that will be covered on the layer. When the coating
is completely cured and it is checked qualified, the cement mortar
protection layer or the finish layer can be done.ColorGrey,
blackPackaging20kg/pail or according to customer's
requirementStorage and Shelf lifeStore in dry and cool place (15-25
recommended). Avoid direct sunlight, kept in an original container,
the shelf life is 12 months.NoteComensflex8269 cannot be applied on
dirty surface.The coating should be used up as soon as possible if
the container is opened.When the coating is being applied, the
process should be strictly accord with the instructions.Avoid
contact with skin or eyes, in case of contact, rinse immediately
with plenty of water and go to see a doctor.It is not allowed to be
applied in rainy, snowy or heavy wind days.Our Company and
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