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Anti-Yellowing Polyurethane Adhesive for EPDM Sports Surfaces - Top China Suppliers & Factory
Characteristics of the Product
- Cured at room temperature.
- Excellent physical and chemical properties, good adhesion.
- Convenient construction, high efficiency, one construction can meet the design thickness requirements.
Product Parameters
| Test Item | Index | |
|---|---|---|
| Physical Indicators | NCO content (%) | 5.5 ± 0.2 |
| Appearance (20℃) | Pale yellow viscous liquid | |
| Operation time (min / 25℃) | 60–90 min | |
| Usage temperature (℃) | Normal temperature | |
| Surface drying time (h / 25℃) | 6–12 | |
| Solidification time (h / 25℃) | 24–48 | |
| Physical Indicators | Viscosity (MPa.S / 30℃) | 2500 ± 200 |
| Tensile strength (MPa, 20% rubber content EPDM granules) | ≥ 0.4 | |
| Elongation at break (%, 20% rubber content EPDM granules) | ≥ 40 | |
Applications
Applicable to the floor, color sand floor, marble floor, road surface color change, etc.
Laboratory, research and development room, pharmaceutical factory, parking lot, subway station, supermarket, warehouse, heavy-load industrial plant, etc.
Packing
200 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
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1Base 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.
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2Environmental temperature and humidity requirements: 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%.
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3Ventilation conditions: Ventilation should be maintained during construction.
Operation Methods and Requirements
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aSelect materials.
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bRecommended ratio of single square dosage: ≥ 0.9 kg glue, 1 ~ 1.1 kg 0.5–2mm size granules, 0.3 ~ 0.4 kg rubber powder, 0.06 kg color paste.
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cThe granule size is recommended at 0.5–2mm. When the glue temperature is low in winter, the viscosity problem is solved by heating the glue to ensure the covering and bond strength. First, fully stir the glue and color paste evenly, then add granules and red rubber powder and stir evenly. Combined with the site situation, an appropriate amount of eco-friendly diluent may be added to adjust construction viscosity. Do not adjust too thin, to prevent the material from penetrating into the particles and excessive atomization when spraying, which results in insufficient surface slurry packaging and future granule loss.
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dAfter mixing evenly, spray once in both directions.
Suggested Use Quantity
📦
Single square meter dosage ≥ 1.3 kg
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Frequently Asked Questions
Q1
What is polyurethane PU binder adhesive used for?
Polyurethane PU binder adhesive is widely used for bonding rubber granules in flooring applications such as color sand floors, marble floors, road surface color changes, parking lots, subway stations, pharmaceutical factories, warehouses, and heavy-load industrial plants.
Q2
How long does PU binder take to cure at room temperature?
At 25℃, the surface drying time is 6–12 hours, and full solidification is achieved within 24–48 hours. The operation time window is 60–90 minutes, allowing sufficient time for application and adjustment.
Q3
What are the base surface requirements before applying PU binder?
The concrete base surface must be cleaned, repaired flat, and polished to a certain roughness. Concrete curing must be completed with a strength of at least C25, and the moisture content must be below 8%. The next process should begin as soon as possible after surface preparation.
Q4
What are the environmental conditions required during construction?
Construction should be carried out when the ambient temperature is above 5℃ and relative humidity is below 85%. Adequate ventilation must be maintained throughout the entire construction process.
Q5
How should PU binder be stored to maintain its quality?
PU binder should be stored in sealed containers under dry, cool, and well-ventilated conditions. It must be kept away from direct sunlight, rain, and any sources of fire to ensure product stability and shelf life.
Q6
What is the recommended mixing ratio for PU binder application?
The recommended single square meter dosage is: ≥ 0.9 kg glue, 1–1.1 kg of 0.5–2mm EPDM granules, 0.3–0.4 kg rubber powder, and 0.06 kg color paste. The total recommended dosage is ≥ 1.3 kg per square meter. In cold weather, gently heat the glue to reduce viscosity before mixing.