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Two-Component Full PU Polyurethane Running Track Material - China Factory Suppliers for Quality 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 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 | Part B: 200 kg | Iron drum packing.
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 to Part B?
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 the product take to fully cure?
The product is fully cured in approximately 18–72 hours at normal temperature. Higher temperature and humidity will shorten the curing time, while lower temperature and humidity will extend it. Under standard conditions, full cure is typically achieved within 18 hours.
Q
What are the base surface requirements before application?
The concrete base surface must be cleaned, repaired, and polished to an adequate roughness. The concrete should be fully cured 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 surface preparation.
Q
What are the environmental conditions required during construction?
Construction should only be carried out when the ambient temperature is above 5℃ and the relative humidity is less than 85%. Adequate ventilation must be maintained throughout the construction process.
Q
How should the product be stored?
The product 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 to ensure product quality and safety.
Q
What is the recommended application dosage per square meter?
The recommended dosage is ≥ 1.3 kg per square meter per millimeter of thickness. Ensure uniform application using a trowel (3mm or 5mm bread knife) to achieve the required design thickness in a single application.