Professional Manufacturers Electrical F-R4 Epoxy Fiberglass Insulation Sheet Board
FR-4 (or FR4) is a grade designation assigned to glass-reinforced epoxy laminate sheets, tubes, rods and printed circuit boards (PCB). FR4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant (self-extinguishing). "FR" stands for flame retardant, and denotes that safety of flammability of FR4 is in compliance with the standard UL94V-0. FR-4 is created from the constituent materials (epoxy resin, woven glass fabric reinforcement, brominated flame retardant, etc.) by NEMA in 1968. FR-4 Epoxy Fiberglass Sheet is a popular and versatile high-pressure thermoset plastic laminate grade with good strength to weight ratios. With near zero water absorption, FR-4 is most commonly used as an electrical insulator possessing considerable mechanical strength. The material is known to retain its high mechanical values and electrical insulating qualities in both dry and humid conditions. These attributes, along with good fabrication characteristics, lend utility to this grade for a wide variety of electrical and mechanical applications.
· Non-absorbent, Non-conductive
· High strength , good insulation properties
· Wear-resisting and thermostable characteristic
· Excellent electrical, mechanical and processing properties
Used in Electric insulation component.
Used in mechanical, electrical and electronic high insulation structure parts.
Used in high-performance electrical insulation requirements.
General machines parts and gear, generators, Pads, base, baffle.
Generator, transformer, fixture, inverter, motor.
>>>>>>Our operation is principle "win-win situation"!<<<<<<
The price of product isCheaper than that of peers!!!
The quality of product is Better than that of peers!!!
Yellow , Light Green , Transparent
Glass fabric cloth, epoxy resin
Stand size 41" x 49" (1030mm x 1230mm). We can customize for you.
The plate should no bubble, pucker, cracking or other defects, e.g. Scratch, indentation, ripple, irregular color etc. But allow exist some spots.
High mechanical performance under medium temperature, good electrical performance stability under high temperature, resist to acid and alkali, corrosion resistance.
Note! ! ! ! More sheet size ,thickness, color and level could beCustomizeupon request.
Fire Retardancy Grade:
Dielectric constant (1MHz) :
Water absorption rate:
We welcome more domestic and overseas customers to visit us for business negotiation. At the same time, we are very welcome you or your chinese agency to visit our factory, and We can check the further details.
We have our senior engineers team and introducing the advanced technology and equipment
All kind of designs can be produced according to your requirements.
We have good credit and own an excellent production team ,we also cooperate with numerous customers and suppliers. Our Main markets are North American, Southeast Asia, South Asia, South American, Southeast Asia,etc.Welcome more domestic and overseas customers to visit us for business negotiation.
We own professional design engineers and strictly quality control rules and regulations, skilled and experienced manufacturing team and mature processing, advanced machines and testing instruments.
Packaging & Shipping
1. Q:Product price a bit Lower than other Chinese suppliers?
1) Really! Because we own reliable sources of high and cheap quality raw materials.
2) To meet the requirement of different customers and areas, our factory manufactures various kinds of quality for each item at a wide range of prices. We can offer the products of different quality levels depending on customers target price.
3) The larger the volume is, the more discount you can enjoy,we hope for longterm cooperation.
2. Q:How long is your delivery time?
1) Generally it is 5-10 days if the goods are in stock.Or it is 15-20 days if the goods are not in stock,it is according to quantity.
3. Q: How can I get a sample?
1) Normally small samples (sizes not larger than 150*150mm) can be sent free of charge and customers just need to bear a little shipping.
4. Q: How about the service Longxing offered to the customers?
1) If you have any questions about our products or company, do not hesitate to send us your inquiry to our customer service representatives. Your satisfaction is our pursuits.
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