What are the different types of phenolic sheet?

Phenolic sheet is a insulation material and it has a wide range of applications. If we want to apply it properly, we need a basic understanding of it. In this article we will understand its basic concept and classification.

What is phenolic?
Phenolic resin is produced when a weighted layer of a cotton, paper or glass fabric mixture is placed under heat and pressure and a synthetic resin is filled in the weighted layer of these materials. This creates an extremely durable and tough material that is much lighter than aluminum but has many of benefits and applications.

What is phenolic resin?
Phenolic resin was produced in 1910 as the first man-made synthetic plastic, and now has the history for more than 100 years. Phenolic resin possesses excellent characteristics such as excellent heat and flame retardance, high strength, long-term thermal and mechanical stability, excellent electrical and thermal insulating properties, good chemical resistance, low water absorption, and excellent cost-performance characteristics due to the inexpensive raw materials and fabricating processes. Therefore, phenolic resin is widely used in various applications from commodity and construction materials to the high-technology aerospace industry in the form of electric laminates, adhesives, molding compounds, fiber-reinforced composites, glass fiber or rock wool insulation, honeycomb paneling, acid-resistant coatings, wood panels, binder in friction linings, or automobile brakes.

What is phenolic sheet?
Phenolic sheet is also called Phenolic Board is a kind of composite material as the main component of the phenolic resin. It is usually made by mixing wood fiber, paper and other materials with phenolic resin and then processing at high temperature and pressure. It has excellent mechanical properties, water resistance, heat resistance and chemical stability, and is widely used in construction, furniture and home appliances industries. ‌

Classification of phenolic sheets
Phenolic sheet is a common insulating material and widely used in all walks of life. According to their performance and use, phenolic sheet can be divided into the following main categories:

1. According to the use of the phenolic sheet, it can be divided into structural phenolic sheet and insulating phenolic sheet. The structural phenolic sheet has high mechanical strength and stiffness and is suitable for the manufacture of components and parts. They are commonly used in the manufacture of electrical equipment, mechanical parts and building structures. In contrast, insulating phenolic sheets have good insulation properties and are commonly used for the insulation isolation of electrical equipment and the support and fixation of electronic components.

2.According to the different base materials of the phenolic sheet, phenolic sheet can be divided into phenolic cotton sheet and phenolic paper sheet.

3.According to the temperature resistance of the phenolic sheet, it can be divided into ordinary phenolic sheet and high temperature phenolic sheet. The temperature resistance of ordinary phenolic sheet is generally about 80℃, which is suitable for insulation and component manufacturing in general environment. The high temperature resistant phenolic sheet has higher temperature resistance and can work in high temperature environment for a long time. This type of phenolic sheet is commonly used in high temperature applications such as power equipment, boilers and chemical equipment.

4.According to surface treatment, phenolic sheet can also be divided into single-sided bright sheet and double-sided frosted sheet. The surface of the single-sided bright sheet is smooth, which is suitable for occasions requiring appearance effects such as mold manufacturing and decorative materials. The double-sided frosted sheet has good slip resistance and wear resistance, and is suitable for non-slip gaskets and sound insulation materials of mechanical equipment.

If you’re looking for phenolic sheets, Ztelec group can provide help. Ztelec group supplies high-quality phenolic sheets in any quantity while keeping extreme quality and on-time delivery.