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High-Quality Two-Component PU Running Track Material from China Suppliers | Reliable Factory Paving Solutions
Characteristics of the Product
- ✓ Cured at room temperature.
- ✓ Excellent physical and chemical properties, all kinds of substrates have good adhesion.
- ✓ Convenient construction, high efficiency, one construction can meet the design thickness requirements.
- ✓ Using manual scraping or rolling coating construction, simple, convenient and controllable.
Product Parameters
| Test Data | Part A | Part B |
| Appearance | Red viscous liquid | Colorless clear liquid |
| Viscosity / 30℃ | 20000–30000 Mpa·s | 3500–4000 Mpa·s |
| NCO Content /% | / | 7.5 ± 0.2 |
| Operation Time | 0.5–2h (The higher the temperature, the shorter the operation time) |
| Curing Time | 18–72h (The higher the temperature and humidity, the shorter the time, and the longer the vice versa) |
| Tensile Strength | 1.0–1.5 Mpa |
| Elongation at Break | 100–150% |
Applications
Schools, stadiums and other common used plastic track.
Packing
Part A
250 kg — Iron Drum
Part B
200 kg — Iron 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 Part A and Part B are stirred evenly according to the ratio of 5:1, and the appropriate proportion of catalyst is added according to the different temperature and humidity.
- 2 During construction, in order to ensure the adhesion between layers, sanding is performed (Note: sanding floating dust must be cleaned with a vacuum cleaner). Roll on solventless epoxy sealing primer. After the primer is completely cured, pour the uniform mixture of Part A and Part B onto the floor, scrape it evenly with a trowel (3mm or 5mm bread knife can be used according to the thickness), and proceed to the next process after curing. It is completely cured in 18 hours at normal temperature. If there is bad weather such as rain after painting, an interface agent must be painted before the next process.
Suggested Use Quantity
Single square meter dosage ≥ 1.3 kg/mm
Frequently Asked Questions (FAQ)
Q
What is the mixing ratio of Part A and Part B for this polyurethane coating?
Part A and Part B should be mixed at a ratio of 5:1 by weight. An appropriate proportion of catalyst should also be added based on the ambient temperature and humidity conditions at the time of application.
Q
How long does it take for the coating to fully cure at room temperature?
The coating is fully cured in approximately 18 hours at normal temperature. The overall curing time range is 18–72 hours, depending on temperature and humidity — higher temperature and humidity accelerate curing, while lower conditions extend it.
Q
What are the base surface requirements before applying the coating?
The concrete base must be cleaned, repaired, and polished to a certain roughness. Concrete curing must be complete, with a strength of C25 or above and a moisture content of less than 8%. The next process should begin as soon as possible after base surface preparation.
Q
What environmental conditions are required during construction?
Construction should only be carried out when the ambient temperature is above 5℃ and the relative humidity is below 85%. Adequate ventilation must be maintained throughout the construction process.
Q
How should this coating be stored to maintain its quality?
The coating should be stored in a sealed container in a dry, cool, and well-ventilated environment. It must be kept away from direct sunlight, rain, and any sources of fire or ignition.
Q
What is the recommended dosage per square meter and how is it packaged?
The recommended dosage is ≥ 1.3 kg per square meter per millimeter of thickness. The product is packaged in iron drums — Part A in 250 kg drums and Part B in 200 kg drums.