Polyurethane Spraying Application

Polyurethane Spraying Project is an insulation, waterproofing, and structural reinforcement process that involves in-situ spraying and foaming of a two-component polyurethane material at the construction site. Using high-pressure spraying equipment, the material is evenly sprayed onto walls, roofs, pipes, or equipment surfaces. The material expands and cures rapidly within seconds, forming a continuous, seamless, and highly adhesive foam layer.
This spraying system, with its excellent thermal insulation properties, airtightness, weather resistance, and construction efficiency, has become an important technical solution in building energy conservation, industrial insulation, cold chain engineering, and waterproofing projects. The sprayed polyurethane foam adheres directly to various substrate surfaces, reducing thermal bridges and significantly improving the overall energy efficiency of the structure.

◆ Product Features

1. Seamless, Integral Molding, Excellent Airtightness
The polyurethane material forms a continuous foam layer after spraying, with no seams, splices, or voids, effectively blocking air penetration and providing a high level of airtightness.
2. Superior Thermal Insulation Performance
The rigid closed-cell foam formed by spraying has a very low thermal conductivity, significantly improving the thermal insulation and energy efficiency of buildings or equipment, making it one of the mainstream choices for high-performance insulation systems.
3. Strong Adhesion and Wide Applicability
It can firmly adhere to various substrates such as concrete, metal, wood, masonry, and fiberglass, and is not easy to peel off. It can be used in construction environments with complex shapes or confined spaces.
4. Dual Effect of Waterproofing and Structural Reinforcement
The closed-cell foam has excellent waterproofing performance, blocking water seepage and moisture intrusion; at the same time, it enhances the overall strength and durability of the coated structure.
5. High Construction Efficiency
The spraying method is fast and efficient, allowing for large-area coverage in a short time, which is unmatched by traditional insulation layers. In addition, on-site foaming reduces manual cutting and splicing, improving construction quality.
6. Stable, Weather-Resistant, and Long-Lasting
The material is heat-resistant, cold-resistant, moisture-resistant, and anti-aging, maintaining dimensional stability and thermal insulation performance for a long time, suitable for various climates and outdoor conditions.
7. Performance Adjustable According to Needs
Density, hardness, foaming ratio, and flame retardancy can be adjusted through the formulation system to meet the application requirements of different engineering fields.

◆ Application Industries

Building Energy Efficiency Projects
Used for thermal insulation spraying of building exterior walls, roofs, foundations, and interior partition walls, reducing thermal bridges and improving building energy efficiency and living comfort.
Cold Chain and Refrigeration Industry
In cold storage, refrigerated trucks, food processing plants, and other scenarios, sprayed polyurethane is used for the insulation layer construction of enclosure structures, resulting in more precise and energy-efficient temperature control.
Industrial Equipment and Pipe Insulation
Used for insulation and corrosion protection of storage tanks, pipes, boilers, chemical equipment, etc., providing a stable thermal insulation layer, improving energy efficiency and equipment lifespan.
Roof Waterproofing Projects
The sprayed foam forms a continuous waterproof layer, suitable for flat roofs, irregular roofs, metal roofs, etc., providing excellent and durable waterproofing performance. 

Agriculture and Specialized Buildings
Protective coatings for structures such as greenhouses, livestock buildings, and mobile homes, improving thermal insulation and environmental stability.
Ships and Transportation Facilities
Providing thermal insulation, moisture protection, and structural stability support for ship hulls, refrigerated containers, and railway cold chain equipment.

◆ Company Profile

Jiangsu Kequ New Material Technology Co., Ltd. is a company specializing in the production and research and development of rigid polyurethane foam insulation boards and rigid polyurethane foam composite materials. The company's main products are rigid polyurethane foam board series, polyurethane rigid foam composite material series, high resilience composite material series, and plastic runway slurry series, which are widely used in construction, refrigerated trucks, refrigerators, freezers, oil pipelines, heating pipelines, cold storage, solar water heaters, automobiles, furniture, military, hull insulation and other fields.

◆ Factory Appearance

◆ FAQ

Why does polyurethane spray foam offer better insulation than traditional insulation materials?
Polyurethane spray foam uses in-situ foaming technology, allowing it to adhere tightly to the substrate, forming a seamless, integral insulation layer. This avoids the gaps and thermal bridges common with traditional materials. Its high closed-cell ratio and low thermal conductivity result in more stable insulation efficiency. During application, it can evenly cover complex structures, significantly reducing overall heat loss in buildings or equipment, thus achieving higher levels of energy efficiency.

Does polyurethane spray foam have waterproofing capabilities?
The closed-cell foam structure formed by polyurethane spray foam has excellent water repellency, effectively preventing the penetration of external rainwater and moisture. The spray layer itself is seamless and non-absorbent, making it suitable for applications such as roofs, basements, and the exterior walls of storage tanks, where both insulation and waterproofing are required. Because the material bonds tightly to the substrate, it maintains good waterproofing stability even in environments with vibration or significant temperature fluctuations.

Is polyurethane spray foam application environmentally friendly and safe for humans?
Polyurethane spray foam materials are safe and stable after curing, and do not release harmful gases.  Under normal use conditions, they have no impact on human health. During the application phase, safety operating procedures must be followed, such as maintaining good ventilation and wearing protective equipment. Modern systems often use low-VOC, environmentally friendly foaming formulations to reduce environmental impact. Overall, spray foam insulation is an environmentally friendly and safe insulation method when applied correctly.

Kequ New Materials is willing to work with you to create brilliance together!