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SPUA II Two-Component Spray Polyurea Waterproof Material

Aromatic Polyurea

SPUA II Two-Component Spray Polyurea Waterproof Material

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

    ≥98%

    2

    Gel time

    ≤20s

    3

    Tensile strength

    ≥19Mpa

    4

    Elongation

    ≥550%

    5

    Tear strength

    ≥50N/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

    90-95

    Applications

    Roof waterproofing, villa platform, terrace and other waterproofing protection
    2
    3
    4
    5
    6
    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; The humidity 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

    1.2kg/mm/m2, 
    waterproof national standard thickness 1.5mm, single square meter dosage 1.8kg,
    anti-corrosion national standard thickness 2.0mm, dosage 2.4kg

    Construction steps:

    SPUA II  1

    First step: clean the foundation, fill in the gaps

    SPUA II  2

    Second Step: Roll primer

    SPUA II  3

    Third step:  SPUA Ⅱ polyurea spray construction

    SPUA II  4

    Forth step: Brush waterbased PU top coat