News Updates

Spray Machine: Performance Advantages of Polyurethane Spray Machines

Release Date:

Sep 21,2020

Polyurethane spray machines and waterproof coating spray machines are essential components of the spraying industry. They are characterized by their versatility, offering multiple functions such as thermal insulation, heat resistance, and waterproofing. With the rapid growth of China’s building‑energy‑efficiency market, polyurethane spray machines have been widely adopted in building insulation and waterproofing applications, now commanding a dominant market share. Polyurethane spraying comprises two main processes: direct application of primer and synthetic resin, and foamed polyurethane spraying. The direct application of primer and synthetic resin is primarily used to provide corrosion resistance, wear resistance, sealing, and thermal insulation. So, what are the performance advantages of polyurethane spray machines? Let’s take a look.

Polyurethane spray machines and waterproof coating sprayers are key components of the spraying industry. They are characterized by their versatility, offering multiple functions such as thermal insulation, heat resistance, and waterproofing. With the rapid growth of China’s building‑energy‑efficiency market, polyurethane spray equipment has been widely adopted in building insulation and waterproofing applications, now commanding a dominant market share. Polyurethane spraying comprises two main processes: direct application of primer and synthetic resin, and foam‑injection polyurethane spraying. The primer‑and‑synthetic‑resin method is primarily used to provide corrosion protection, wear resistance, sealing, and thermal insulation. So, what are the performance advantages of polyurethane spray machines? Let’s take a look.

1. Cohesion: Possesses strong adhesive properties, enabling it to bond firmly to surfaces such as concrete, masonry, wood, steel, asphalt, and rubber.
2. The shape and base surface of the sprayed foam insulation layer: the material maintains a uniform shape, with no seams, ensuring excellent thermal insulation performance. A dense protective skin on the outer surface of the foam layer provides superior protection for the core material and facilitates subsequent repairs.
3. For substrates of various shapes—whether simple or complex—direct spraying and foaming can be applied, thereby reducing costly mold‑making expenses.
4. Wind Resistance and Thermal Insulation: It exhibits excellent wind resistance, with its foam capable of penetrating wall gaps to enhance shear strength; its thermal conductivity is lower than that of rock wool, glass wool, polystyrene boards, extruded polystyrene boards, and other building insulation materials.
5. Sealing Performance: Pore-free and seamless, it fully encloses the building envelope, effectively preventing wind and moisture from entering or escaping through gaps, thereby achieving complete airtightness.
6. High production efficiency, particularly well-suited for molding large‑area, complex‑shaped components requiring thermal insulation; rapid molding and high productivity.
7. Dimensional Stability: Dimensional stability is less than 1%; it exhibits a certain degree of elastic deformation, with an elongation at break exceeding 5%; hydrophobicity is greater than 95%.
8. Stable performance: Polyurethane is an inert material; it does not react with alkalis and is not a food source for insects or rodents, thereby maintaining consistent material properties and thermal insulation performance.

Jiangsu Chengye Tools Co., Ltd. is a manufacturer of polyurethane waterproof spray machines, airless sprayers, multi‑functional waterproof sprayers, and waterproof coating sprayers. If you have any spray‑machine requirements, please feel free to contact us.

Is a waterproof coating sprayer easy to use? What are the advantages of a sprayer?

Waterproofing Sprayer: Analysis of Common Malfunctions in Putty Sprayers