A Comprehensive Guide of Product Features & Purchasing Tips
Fiberglass sheet, also known as FR4 Sheet, is a composite plate made of fiberglass materials and high heat-resistant composite substrates. It can withstand continuous temperatures around 150°C and boasts a full spectrum of premium properties for versatile industrial applications. A detailed introduction is shown below:
Product Features
Superior Mechanical Performance FR4 Sheet features high mechanical strength and hardness to resist certain pressure and impact loads.
Excellent Dielectric Properties It delivers reliable electrical insulation, perfectly suited for scenarios with strict electrical performance requirements.
Great Heat & Moisture Resistance It maintains stable physical and electrical performance under high-temperature and high-humidity operating environments.
Outstanding Machinability Easy to cut, drill and process into customized shapes and sizes.
Eco-Friendly & Flame Retardant Free from harmful asbestos, and equipped with stable flame retardant properties.
Application Fields
Transportation Industry
Widely used for housings, interior components and sound insulation parts in automobiles, ships, rail transit vehicles, improving overall performance and safety of transport equipment.
Electronics & Electrical Industry
Thanks to reliable insulation and heat resistance, FR4 Sheet acts as a vital base material for circuit boards and various insulating structural components.
New Energy Industry
With lightweight design and high comprehensive performance, it is adopted for core parts such as wind turbine blades and solar panel brackets in wind power and photovoltaic projects.
Aerospace Industry
Its outstanding mechanical strength, high temperature resistance and radiation resistance make it ideal for manufacturing key components of aircraft, satellites and other aerospace equipment.
Besides the above sectors, FR4 Sheet also plays an irreplaceable role in sports equipment, household appliances, medical devices and many other industries.
Production Process
Fiberglass Cloth Unwinding Fiberglass fabric is unwound and conveyed through guide rollers into the resin dipping tank.
Resin Dipping & Squeezing After full resin impregnation, the cloth passes through squeeze rollers to precisely control resin content.
Oven Pre-Curing The coated fabric enters the oven to remove volatile solvents and bring the resin to a semi-cured state.
Cutting & Stacking After exiting the oven, the prepreg is cut to specified dimensions and neatly stacked on storage racks for subsequent hot pressing.
Market Overview
Within the epoxy fiberglass sheet market, FR4 Sheet holds absolute competitive advantages and dominant market share, occupying most of the mid-to-high-end market segments. This leading position originates from its balanced all-round industrial performance and reliable flame retardant capacity.
Purchasing Suggestions
Brand Reputation Select manufacturers and suppliers with credible brand reputation and positive market feedback.
Product Quality Inspect core indicators including mechanical strength, dielectric performance, heat resistance and moisture resistance.
Budget & Cost Pick matching grades in accordance with actual application demands and project budget.
After-Sales Support Learn about the supplier’s after-sales service terms and response efficiency.
YILONG provides complete specifications of premium FR4 Sheet for all industrial insulation projects.
In short, FR4 Sheet is a high-performance composite plate with extensive application coverage, serving as an essential material for electronic devices and industrial manufacturing. Multiple factors should be taken into full consideration during procurement to guarantee the product meets actual performance and quality requirements.
YILONG supplies full-range FR4 Sheet with custom cutting, precision machining and technical support for electronics, transportation and new energy industries. If you want to get material test reports, free samples or bulk order quotations, please feel free to contact us:
Email: yilong@yilonginsulation.com
Website: www.yilonginsulation.com
Mob/Whatsapp: +8615866869385
Fiberglass sheet, also known as FR4 Sheet, is a composite plate made of fiberglass materials and high heat-resistant composite substrates. It can withstand continuous temperatures
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