Hot Spray Polyurea Waterproof Coating, Fast Curing, Seamless, Flexible and Durable

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.

Product Parameters

1) Rapid curing, capable of continuous spraying and forming on any curve, facade,or top surface without sagging.
2) It has excellent waterproof performance to effectively protect the substrate from water
3)Excellent physical and chemical properties, with good adhesion to various substrates.
4)Convenient construction, extremely efficient, and can meet the design thickness requirements in one construction.
5)Overall film formation, dense and seamless coating.
6)Mechanized construction is adopted, which is professional, convenient, andm controllable.
7)Free from solvents, heavy metals, and environmentally friendly.
8)100% solid, free of VOC (volatile organic compounds), environmentally friendly.
9)Wide temperature range for use (-45 ºC~150 ºC).
10)Continuous, dense, seamless coating, beautiful and practical.

Serial  Number	Test item	Technical Requirement	Test Result
1	Solid Content %	≥98	98
2	Gel time /s	≤45	16
3	Surface dry time /s	≤120	20
4	Tensile strength /Mpa	≥16.0	22
5	Elongation at Break /%	≥450	460
6	Tear strength /(N/mm)	≥50	66
7	Low temperature bending/ºC	≤-40	-40
8	Impermeability	0.4Mp,impermeable for 2 hours	Impermeable
9	Heating elongation /%	Elongation or contraction ≤1.0	0.4
10	Bond strength /Mpa	≥2.5	3
11	Water absorption	≤5.0	0.5
12	Heat aging artificial weathering	No cracks or deformation	No cracks or deformation
13 Heat treatment	Tensile strength retention rate /%	80-150	97
	Elongation at break/%	≥400	411
	Low temperature bending/ºC	≤-35	-35 No cracks

14Alkali treatment	Tensile strength retention rate/%	80-150	103
	Elongation at break/%	≥400	413
	Low temperature bending/ºC	≤-35	-35 No cracks
15 Acidation	Tensile strength retention rate/%	80-150	99
	Elongation at break/%	≥400	410
	Low temperature bending/ºC	≤-35	-35 No cracks
16Salting	Tensile strength retention rate/%	80-150	97
	Elongation at break/%	≥400	409
	Low temperature bending/ºC	≤-35	-35 No cracks
17 Artificial weathering	Tensile strength retention rate/%	80-150	83
	Elongation at break/%	≥400	408
	Low temperature bending/ºC	≤-35	-35 No cracks
18	Hardness/shore A	≥80	85
19	Wear	≤30	1
20	Resistance/((750g/500r)/mg) Impact resistance/(k·m)	≥1.0	1.0kg · m without damage

1)Workshop floors, storage tanks, neutralization tanks, drainage ditches, etc. In chemical, petroleum, petrochemical and other industries;
2)Structures such as landfills, sewage treatment ponds, and exhaust gas filtration towers;
3)The anti-corrosion and wear-resistant protection of the production workshop and warehouse floors;
4)Steel structure platforms such as metal pipelines, bridges, ship decks, etc.
5)Roof waterproofing, exterior wall waterproofing, and exterior wall repair as new.
6)Sports stands, anti-seepage, wear-resistant flooring.
7)Water parks, swimming pools, and aquatic products.

 

A 220kgs/drum B 210kgs/drum

Sealed and stored in dry, cool, and well ventilated conditions, avoid exposure to sunlight and rain, and keep away from ignition sources. Under the original packaging state and specified storage conditions, the product has a shelf life of 6 months from the production date. If the storage period exceeds, inspection can be carried out according to the items specified in this product standard. If it meets the technical requirements, it can still be used. Please use it as soon as possible after opening, and it must be resealed and stored when not in use. This product does not contain organic solvents and can be transported as a non hazardous material. During transportation, rain and sunlight should be strictly prohibited to avoid severe collisions. Materials should be neatly and stably stacked, and should comply with relevant regulations of the transportation department.

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 ºC, and the base surface temperature should be at least 5 ºC 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.

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 ºC, and the base surface temperature should be at least 5 ºC 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.

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 ºC.
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: