Do you know the classification and application of FR-4?

FR-4 can be divided into 4 kinds according to different colors and reinforcement materials. It is used in motor and electrical equipment, and can be used in humid environment conditions and transformer oil.

The surface colors of FR-4 epoxy glass cloth laminated sheet are:

Yellow FR-4, white FR-4, black FR-4, blue FR-4, etc.

FR-4 is the substrate used in PCB and is a type of sheet material. According to the different reinforcement materials, the sheet materials are mainly classified into the following four types:

1) FR-4: Glass cloth substrate

2) FR-1, FR-2, etc. : Paper substrate

3) CEM series: Composite substrate

4) Special material substrates (ceramic, metal substrates, etc.)

FR-4 is a laminated plate made of special electronic cloth impregnated with epoxy phenolic resin and other materials under high temperature and high pressure.

Features: high mechanical properties and dielectric properties, good heat resistance, moisture resistance and good mechanical processing.

Application: insulation structure parts used in motor and electrical equipment, including various types of switch, FPC reinforced, electrical insulation carbon film printed circuit board, computer drilling pad/jig (PCB test rack), and can be used in humid environment conditions and transformer oil.

FR-4 epoxy glass fiber board (epoxy plate): the main material is imported half curing film. Color is white, yellow and green. It still has high mechanical strength under the normal temperature of 150 ℃. Electrical properties and flame retardant are good under dry and wet state. FR-4 epoxy glass fiber board adopts imported raw materials, domestic compressor and elaborate manufacturing standard process; The main specifications are 1000*2000 mm and 1020mm*1220mm. Because of the advantages of raw materials, we will ensure superior quality, low price and timely delivery. ZTelec Group has a stable customer base at home and abroad, and enjoys a high reputation.