What are the properties of polyurethane products

Polyurethane pipe shell manufacturers sell various specifications of polyurethane pipe shells. When purchasing, you should choose according to your own needs, because different specifications have different effects and uses. Some building materials require high specifications, so the selection should be based on the size.
There are two methods to improve the foaming speed of polyurethane. One method is to change the working temperature. When the working temperature increases, the foaming speed will also accelerate, and the curing speed will also accelerate. For example, when the ambient temperature rises to 35 ℃, the operating time is shortened to 5 minutes, and it can be cured in 6 hours.
The air temperature is very important for polyurethane foaming equipment. The foaming amount at 15 ℃ decreased by 25% compared to 25 ℃. On the other hand, it will form a layer. This layer is not fully foamed, even the foam surface is very hard, which increases the injection amount of foam and the production cost of foam. Therefore, in the operation process, it is necessary to strictly grasp the environmental temperature factor.
Polyurethane insulation materials are often used as building insulation materials. Its insulation performance is excellent, and its derivative products include polyurethane insulation board, polyurethane pipe shell, polyurethane composite board, etc.