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China Suppliers Factory of YP683/YP685 Hand-Brush Cold Polyurea - Solvent-Free, Flexible, Fast-Curing Coating
Characteristics of the Product
- 1Can cure at room temperature, surface dry within 12 hours, and dry within 24 hours.
- 2Excellent physical and chemical properties, with good adhesion to various substrates.
- 3Convenient construction, extremely high efficiency — can achieve the design thickness requirements (hundreds of micrometers to several centimeters) in one construction.
- 4Good leveling performance, overall film formation, dense and seamless coating.
- 5Using manual scraping or roller coating construction — professional, convenient, and controllable.
- 6Free from solvents, heavy metals, and environmentally friendly.
- 7100% solid, free of volatile organic compounds (VOCs), environmentally friendly. 100% Solid Zero VOCs
- 8The coating is continuous, dense, seamless, aesthetically pleasing and practical.
- 9Has excellent anti-corrosion performance, effectively protecting the substrate from corrosion.
Product Parameters
| Item Number | YP683 / YP685 |
| Solid Content % | 100 |
| Work Time (min) | 10–15 mins |
| Surface Dry Time (h) | < 4 |
| Actual Dry Time (h) | < 24 |
| Hardness (Shore A) | 80 |
| Tensile Strength (MPa) | 7–8 MPa |
| Elongation at Break (%) | 300 |
| Tear Strength | 40 N/m² |
| Adhesion (Pull) MPa | 2 MPa |
Applications
- 🏊Waterproofing protection for roofs, swimming pools, water parks, etc.
- 🏭Production workshop anti-corrosion flooring and warehouse floor anti-corrosion and wear-resistant protection.
- 🏫Silent floors in schools, hospitals, kindergartens, and dust-free workshop floors.
- 🏀Can board sports venues such as basketball courts.
Packing
20 kgs / drum
Storage
Sealed storage of coatings in dry, cool, and well-ventilated conditions, avoiding sunlight and rain, and keeping away from sources of fire.
Construction Conditions
- 1 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.
- 2 Environmental Temperature & Humidity: The environmental temperature at the construction site should be above 5 ℃, and construction can only be carried out when the relative humidity is less than 85%.
- 3 Ventilation Conditions: Ventilation should be maintained during construction.
Operation Methods and Requirements
- 1 Mixing Ratio A:B = 1:1 (mass ratio) — No solvent is allowed to be added. Before use, pour component B into a mixing bucket and add the same mass of component A by electronic weighing. Stir thoroughly for 2–3 minutes to prevent uneven mixing at the bottom of the bucket, which could result in local non-solidification of the floor. The prepared polyurea coating should be used up within 15 minutes.
- 2 During construction, first apply solvent-free epoxy anti-corrosion sealing primer. After the primer is completely cured, polish the area to ensure inter-layer adhesion. Note: polishing floating dust must be cleaned with a vacuum cleaner.
- 3 After cleaning and polishing the floating dust, use solvent-free polyurea intermediate coating combination material mixed evenly in proportion. Pour this combination material onto the floor and scrape it evenly with a trowel (3mm or 5mm trowel can be selected according to thickness requirements). After 24 hours of curing, the next process can proceed. If the construction interval exceeds 48 hours, a layer of interface agent needs to be applied before proceeding.
- 4 After curing, if encountering adverse weather such as rain, a layer of interface agent must be applied before proceeding to the next process.
- 5 Under normal circumstances, the coating film should be cured for at least 7 days after completion of painting to ensure optimal performance of the paint film.
Suggested Use QTY
📐 Coverage Reference
1.2 kg / mm / m²
Waterproof national standard thickness 1.5 mm — single square usage: 1.8 kg
Anti-corrosion national standard thickness 2.0 mm — usage: 2.4 kg
Construction Steps
Step 1
Clean the foundation, fill in the gaps
Clean the foundation, fill in the gaps
Step 2
Roll primer
Roll primer
Step 3
Two-component cold polyurea construction
Two-component cold polyurea construction
Step 4
Brush water-based PU top coat
Brush water-based PU top coat
Frequently Asked Questions (FAQ)
Q What is the mixing ratio of the two-component cold polyurea (YP683/YP685)?
The mixing ratio of component A to component B is 1:1 by mass. No solvents should be added. Components must be weighed electronically and stirred thoroughly for 2–3 minutes before use. The prepared mixture must be used within 15 minutes.
Q How long does the cold polyurea coating take to dry and fully cure?
The surface becomes dry in under 4 hours, and full drying is achieved within 24 hours. For optimal paint film performance, the coating should be cured for at least 7 days after the final coat is applied.
Q What are the base surface requirements before applying the coating?
The concrete base surface must be cleaned, repaired, and polished to an appropriate roughness. The concrete strength should reach C25 or above, and the moisture content must be below 8%. Proceed to the next step as soon as possible after surface preparation.
Q Is this polyurea coating environmentally friendly?
Yes. The YP683/YP685 cold polyurea coating is 100% solid content with zero VOCs (volatile organic compounds). It is free from solvents and heavy metals, making it a safe and eco-friendly choice for both indoor and outdoor applications.
Q What is the recommended coverage rate and thickness for waterproofing applications?
The coverage rate is 1.2 kg per mm per m². For waterproofing to national standard, a thickness of 1.5 mm is required, consuming approximately 1.8 kg per m². For anti-corrosion applications, the standard thickness is 2.0 mm, requiring approximately 2.4 kg per m².
Q What are the environmental conditions required during construction?
The ambient temperature at the construction site must be above 5 ℃, and the relative humidity must be below 85%. Adequate ventilation must be maintained throughout the construction process. If the construction interval exceeds 48 hours or adverse weather such as rain occurs, an interface agent must be applied before proceeding.