As the weather gets warmer, our cold storage industry is about to enter the peak season again. Many of our customers who inquire about cold storage often ask, "What is used for cold storage insulation?" "What are the effects of polyurethane spray?" Here's a summary for you today:
According to different construction techniques, polyurethane blends can be divided into two major types: spray coatings and castings. Spray polyurethane foam can be widely used for insulation in building interior and exterior walls, as well as in cold storage in industries such as fruits and vegetables, food, medicine, and logistics.
The advantages of polyurethane spraying
Rigid foam spray polyurethane has a high bonding strength with the wall material, forming a continuous seamless insulation layer, ensuring the combined effect of the insulation material with the wall and effectively blocking thermal Bridges.
2 Waterproof and moisture-proof
Polyurethane insulation has a high closed-cell rate, low water absorption rate, and no seams on the surface, preventing rainwater from entering the interior and causing danger. It has excellent waterproof and moisture-proof performance.
3 Fire-resistant, flame-retardant and heat-resistant
Polyurethane, with the addition of flame retardants, is a flame-retardant and self-extinguishing material. The product can burn up to GB 8624-2012 B1 grade, effectively preventing the spread of fire and not producing harmful gases at high temperatures.
Rigid polyurethane foam is a material with relatively high strength, strong resistance to external forces, capable of withstanding wind force, self-weight and normal impact, etc. The insulation layer does not separate or fall off from the base and can withstand harsh weather and its changes. Whether it is high temperature or severe cold, it will not cause irreversible damage or deformation to the insulation system.
Spray foaming does not require molds. Whether it is a horizontal or vertical surface, top surface, whether it is a simple object surface or a complex surface, rigid polyurethane foam insulation can be formed by spray foaming.
In addition, the selection of spraying equipment is also something that everyone must pay attention to! Like many small workshops, their products often have quality problems. They don't have professional R&D personnel and just copy the machines. There is no nationally or internationally recognized technical certification; There are no professional after-sales service personnel, and the buying and selling of products is only a one-time cooperation.