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SPUA Ⅰ Two-Component Spray Polyurea

Aromatic Polyurea

SPUA Ⅰ Two-Component Spray Polyurea

Model: YP-637, YP-657
Spray polyurea waterproof coating is a spray type two components elastic coating composed of components A and B. Component A is a semi prepolymer prepared by the reaction of isocyanate with oligomer Diol or ternary alcohol, and component B is composed of amino terminated resin, hydroxyl terminated resin, amine chain extender, pigment and additives. Elastic polyurea material formed through on-site spraying with professional equipment. This product has excellent mechanical properties, medium resistance, outdoor aging resistance, and excellent adhesion.

    Characteristics of the product

    ●The addition of urea group polymer with crosslinker and terminal amino polyols can significantly improve the material performance 
    ●Suitable for soaking and waterproof occasions 
    ●Does not contain harmful substances, and the paint film is non-toxic 
    ●Strong bonding force with a variety of materials (including metals, ceramics and composites) 
    ●Spraying molding, no flow hanging

    Product Parameters

    Serial Number

    Test Item

    Test result

    1

    Solid content

    ≥94%

    2

    Gel time

    ≤45s

    3

    Tensile strength

    ≥10Mpa

    4

    Elongation

    ≥350%

    5

    Tear strength

    ≥40N/m2

    6

    Adhesion (pull) Mpa

    5Mpa

    7

    Alkaline resistance (immersed in 20%Na0H solution for 7 days)

    No change

    8

    Water resistance (8h into boiling water)

    No change

    9

    Acid resistance (immersed in 10%HCL solution for 7d)

    No change

    10

    Hardness shore A

    85-90

    Applications(Non-exposed type)

    Suitable for external wall waterproof, swimming pool waterproof and other building waterproof and sports stand protection.
    3
    4
    5
    6
    7
    8

    Packing

    A: 220kg    B: 210kg

    Storage

    This product should be stored in a cool, dry, ventilated indoor warehouse with a storage period of one year.

    Construction Conditions

    Base surface requirements: The concrete base surface should be cleaned, repaired flat, and polished to a certain roughness. Ensure that the concrete curing is completed, the strength reaches C25 or above, and the moisture content is less than 8%. After processing the base surface, the next process should be carried out as soon as possible.
    Environmental temperature and humidity requirements: The construction environment temperature should be between 5~35 ℃, and the base surface temperature should be at least 5 ℃ higher than the air dew point temperature; Thehumidity range should be between 30% and 80%.
    Ventilation conditions: Ventilation should be maintained during construction, but construction should not be carried out when there is strong wind. 

    Painting methods and requirements

    Mix component B of the coating evenly before use
    A: B=1:1 (volume ratio)
    Professional construction teams must use professional spraying equipment for construction, and the material temperature during spraying should be controlled between 50~80 ℃.
    In general, the next process can be carried out after 12 hours of painting. If the construction interval exceeds 24 hours, a layer of interface agent needs to be applied before construction can proceed. If encountering adverse weather such as rain after coating, a layer of interface agent must be applied before proceeding to the next process.
    Under normal circumstances, the paint film should be cured for at least 7 days after completion of painting to ensure the best performance of the paint film.

    Suggested Use QTY

    waterproof national standard thickness 1.5mm,  single square meter dosage 1.8kg, anti-corrosion national standard thickness 2.0mm, dosage 2.4kg

    Construction steps:

    Construction steps03eoq

    First step: clean the foundation, fill in the gaps

    Roll primer 2-2

    Second Step: Roll primer

    SPUA I polyurea spray construction 3-3

    Third step:  SPUA I polyurea spray construction

    Brush waterbased PU top coat 4-4

    Forth step: Brush waterbased PU top coat