The normal use of the electric heating cable is inseparable from the joint work of the entire heating system. The functions of various materials in the entire heating system are different, so today we will talk about the waterproof and thermal insulation materials of the electric heating cable. If the heat tracing is not protected by waterproof and thermal insulation materials, water sources such as rainwater may cause a short circuit of the heating cable. At the same time, the existence of water also increases the workload of the electric heating cable, causing waste of resources and affecting the service life of the heating cable. Moreover, in our daily use of the heating cable, thermal insulation is also an important aspect of the electric heating cable to ensure the heating effect. If there is no insulation material to protect the temperature loss, it is very likely that the heating effect cannot meet the requirements, and the heating cable Constant work is required, resulting in a waste of resources. This also shows the important role of heat tracing, thermal insulation and waterproof materials in the entire heat tracing system. Therefore, we need to choose suitable heat tracing and thermal insulation materials for the heat tracing and thermal insulation materials of the electric heat tracing system. Moreover, considering that half of the heat tracing manufacturers do not produce heat tracing insulation materials, they are all obtained through market procurement. Therefore, for the selection of thermal insulation materials for electric heat tracing products, our company recommends the use of polyurethane rigid foam waterproof thermal insulation materials, which can be purchased in the market. So what is polyurethane rigid foam waterproof insulation material?
Polyurethane rigid foam (PUR) is composed of two liquid components, one is polyol and the other is isohydrogen ester. Using fluorine-free foaming technology. Using special spraying equipment, working on the project site, continuous spraying construction is completed, producing a rigid foam compound (PUR) with a closed cell rate of not less than 95%. The thickness of PUR waterproof and thermal insulation layer can be divided into three thickness grades: 25mm, 30mm, and 40mm, which can be selected according to the different requirements for building protection and thermal insulation in various regions.
As for the thickness of the polyurethane rigid foam waterproof and thermal insulation material selected for electric heat tracing products, the user can choose according to the thermal insulation requirements or the ambient temperature. Generally, if the normal temperature is within minus ten degrees, a slightly thinner material can be selected. If If it is more than minus ten degrees, you can choose a slightly thicker thermal insulation material, etc., these can be.
According to the standard "Technical Regulations for Polyurethane Rigid Foam Waterproof and Insulation Engineering Technical Regulations) JC14-1999, we can see that the polyurethane rigid foam waterproof and thermal insulation material is a kind of protective
The technology of continuous spraying on site, which integrates water and thermal insulation performance, is a relatively good waterproof and thermal insulation material in terms of material properties.