Polyurea In Sports Venues

Polyurea is a new type of solvent-free and pollution-free green protective material. Through advanced spraying technology construction, a continuous, dense, high strength and high elastic protective coating is formed on the surface of the sports stand.

It is generated by the reaction of isocyanate component and amino compound component, which is divided into two components A and B. Two components should be mixed in a certain proportion before spraying.

1.Excellent physical properties

-High strength: With extremely high tensile strength and impact resistance strength, it can withstand the external forces such as frequent stampede and equipment collision, not easy to rupture, damage and other conditions, and effectively protect the structural safety of the sports stand.

-High wear resistance: In stadiums with large flow of people, the surface of the grandstand needs to withstand long-term friction and wear. Polyurea spraying has excellent wear resistance, which can keep the surface intact for a long time and reduce the maintenance and repair costs.

-Good elasticity: Excellent flexibility and resilience, which can adapt to the small deformation caused by temperature change, foundation settlement and other factors in the sports stand, and avoid cracks and falling off of the coating.

-Excellent protective performance

- Waterproof: Polyurea coating is continuous, dense, with no junctions, which can effectively prevent the penetration of water, prevent mildew, corrosion and other problems due to water seepage, and ensure the long-term stability and service life of the stands.

-Anti-corrosion: Resistant to erosion of acid, alkali, salt and other chemical substances, and has a good protective effect on the possible corrosive media in the surrounding environment of the stadium, and is suitable for a variety of complex use environments.

-Weather-resistance: Outdoor long-term use, withstanding the test of ultraviolet, wind and rain, cold and cold and other natural factors, not easy to aging, fade, powder, maintain good appearance and performance, service life can reach more than 20 years.

-Convenient and efficient in the construction

-Fast curing speed: The polyurea material can be quickly solidified after spraying, gel in about 5 seconds, and the walking strength can be reached in 1 minute, which greatly shortens the construction cycle and reduces the impact on the normal use of sports venues.

-Can be constructed on the complex surface: Whether in the plane, curved surface, inclined plane or vertical plane, uniform spraying construction can be carried out, and no flow hanging phenomenon, can adapt to the various complex shapes and structures of the sports stand, to ensure the consistency of the protection effect.

- Large daily workload of single machine: The use of professional spraying equipment, the daily workload of single machine can reach more than 1000 square meters, the construction efficiency is high, can meet the construction needs of large stadiums.

-Environmental safety

-Non-volatile organic compounds: Polyurea material has high solid content, does not contain any volatile organic compounds (VOC), is environmentally friendly, and will not cause harm to human health and the environment during construction and use.

-Good fire performance: Effectively reduce the fire risk, to provide a guarantee for the safety of sports venues.

2.Application

-New sports stands: During the construction of the stadium, spraying polyurea can be used as the waterproof, anti-corrosion and wear-resistant protective layer of the stands, so as to improve the quality and service life of the stands, and provide a safe and comfortable environment for the audience.

-Renovation of old stands: For old sports stands with disrepair, wear, fading, cracking and other problems, spraying polyurea is an ideal renovation material, which can be constructed without dismantling the original structure, saving cost and time, while improving the appearance and performance of the stands.

3.Technical parameters

-Solid content: 100%, to ensure the efficient use of materials and environmental protection performance.

-Tensile strength: Above 10MPa according on different product models and application requirements.

- Break elongation: Usually above 300%, to ensure the flexibility and deformation resistance of the material.

-Hardness: Shaw A hardness is between 60-90 and can be adjusted according to specific requirements.

-Temperature resistance: Maintain good performance in the temperature range of-40℃ to 120℃, can withstand short-term thermal impact of 350℃.

4.Construction technology

-Base treatment: Clean and polish the base surface of the sports stand to remove oil, dust, loose layer and other impurities to ensure that the base is smooth, dry and firm. For the existence of cracks, potholes and other defects of the base level, the need to be repaired.

-Primer construction: Apply a special primer on the surface of the base, to enhance the adhesion of the polyurea coating and the base, and improve the protective effect. The primer coating should be uniform and comprehensive, and the next construction should be carried out after the primer is dried.

-Polyurea spraying: Use professional spraying equipment to evenly spray the polyurea material on the base surface, the spraying thickness is determined according to the design requirements and the use environment, generally 1-3 mm. During the spraying process, attention should be paid to control the spraying speed and pressure to ensure the quality of the coating.

-Paint construction: According to the need, spray the special top paint on the polyurea coated surface, to improve the weather resistance, wear resistance and aesthetics of the coating. The color of the finish paint can be customized according to the customer requirements.

5.Quality control

-Raw material inspection: Strictly test the A and B components of polyurea material to ensure that its quality meets the relevant standards and design requirements, including the detection of solid content, viscosity, density, reactivity and other indicators.

-Construction process monitoring: In the construction process, the base treatment, primer construction, polyyurea spraying, topcoat construction and other links are strictly monitored to ensure that the construction process meets the standard requirements, the coating thickness, uniformity, adhesion and other performance indicators meet the design standards.

-Finished product inspection: After the completion of the construction, conduct a comprehensive inspection of the polyurea coating, including appearance inspection, thickness inspection, adhesion test, waterproof performance test, etc., to ensure that the quality of the coating is qualified and meet the use requirements of the sports stands.

6.After-sales service

-Quality assurance

-Technical support: Professional technical support, including construction guidance, technical consultation, training and other services, to help customers correctly use and maintain the spray polyurea coating.

-Regular follow up: Regular follow up to customers to understand the use of the coating, timely solve the problems encountered by customers in the process of use, and constantly improve customer satisfaction.