Glass fiber reinforced plastic *A plastic material with excellent chemical resistance.
Re-emerging as a new material! A plastic that combines high strength, insulation properties, and chemical resistance.
Glass fiber reinforced plastic (GFRP) not only has excellent electrical insulation properties but also possesses heat resistance, mechanical strength, and chemical resistance, all while being a type of plastic. 【Features】 - The bending strength of a 1mm thick specimen is 450 megapascals, and the tensile strength is 350 megapascals. - The heat resistance temperature is 130°C. *Even after heat treatment at 180°C for 2 hours, there is no significant change in strength or dimensions. - The insulation resistance per 1mm of material is 28,000 volts. (JIS K 6911) - This plastic exhibits extremely low discoloration and dimensional changes due to aging. - Excellent chemical resistance to oils, solvents, acids, and alkalis. 【Applications】 - Machined into parts that require mechanical strength. - Areas where metals are unsuitable. - Areas requiring electrical insulation, thermal insulation, rust prevention, corrosion (electrolytic) prevention, and magnetization prevention. By replacing other materials you have been using with this, you can achieve improved functionality and cost reduction! *For more details, please download the catalog or contact us directly.
basic information
Glass fabric-based epoxy resin laminated sheets are made by stacking a predetermined number of substrates (called prepreg) that have been impregnated with epoxy resin into glass fabric, and then pressing them under high pressure while applying high temperatures. This results in glass fiber reinforced plastic (GFRP: Glass Fiber Reinforced Plastic). [Alternative Example] Due to a specific gravity of about 1.8, it can be used as an alternative in situations where stainless steel (specific gravity ≈ 8.0) parts are employed for rust and corrosion prevention. Result: Achieved nearly 80% weight reduction. [Size] - Thickness varies by type. - Surface polishing can meet thickness accuracy requirements. - The standard size is 1000×1000mm, but longer sizes such as 1200mm, 1500mm, and 2000mm can be accommodated depending on the type. - Custom cutting to your desired size is also possible. *For more details, please download the catalog or contact us directly.
Price information
For more details, please contact us.
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Model number/Brand name
Rishoraito
Applications/Examples of results
Insulation boards and insulation supports for indoor distribution boards, insulation spacers for transformers and generators, insulation bolts & nuts, washers, insulation collars, etc. There are also products that have passed the "Material Combustion Test for Railway Vehicles" by the Japan Railway Machinery Association (JRMA).
Detailed information
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Bending strength test based on JIS K 6911.
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Bending strength The bending strength of a 1mm thick test specimen is 450 megapascals. Many GFRP products are molded products based on thermoplastic resins. In contrast, glass cloth-based epoxy resin laminates are made by applying high heat to a substrate based on thermosetting resins while pressing at high pressure, resulting in excellent mechanical strength.
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Examples of insulation used around coils (image) are often adopted in a way that they are machined into parts requiring mechanical strength and installed in places where metal would be inconvenient.
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Examples of processing into insulating spacers Many GFRP products are molded using molds, but products made from glass fabric-based epoxy resin are obtained by "machining" from the material to achieve the desired shape.
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We also offer laminated tubes made of epoxy resin with a glass fabric substrate in the shape of pipes.
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Industrial winding core This is a hollow structure winding core that is coupled via a flange to a tube that matches the chuck of the winding machine and a tube that is optimal in size for winding. To address wrinkles, it is necessary to increase the size of the winding core, but the increase in weight becomes an issue. With a glass epoxy winding core, these problems can be solved simultaneously.
Line up（6）
| Model number | overview |
|---|---|
| ES-3230 | 〇A representative glass cloth-based epoxy resin laminate that meets ANSI standard G-10. 〇Demonstrates top-level performance in heat resistance, electrical properties, and mechanical strength. 〇Excellent chemical resistance, particularly in alkali resistance. 〇Thickness can be manufactured from 0.1 to 50 mm. |
| ES-3350N | 〇A flame-retardant type that meets ANSI standard FR-4.0. 〇UL flame class (flame retardant) is 94V-0. 〇Used as an insulating material in home appliances where safety is a priority, such as rice cookers and ovens. 〇Thickness can be manufactured from 0.1 to 50 mm. |
| ES-3250J | 〇A black type of ES-3230. 〇Highly regarded as a material with minimal degradation over long periods at high temperatures. 〇Utilizes its black appearance, with examples of adoption in applications requiring light shielding. 〇There is also a flame-retardant type (FR-4.0) called ES-3550J. |
| ES-3260 | 〇The highest quality product equivalent to ANSI grade G-11, heat resistance class H (180℃). 〇Shows minimal degradation in strength due to heating, used in heat-resistant spacers and insulation materials. |
| ES-3440 | 〇A composite material uniquely composed by Rishou, alternating glass roving cloth and glass non-woven fabric, further blended with functional fillers. 〇Excellent arc resistance and tracking resistance. 〇Flame-retardant certified material for railway vehicles (3mm). 〇Does not use halogen-based flame retardants. |
| ES-3753K | 〇A composite material combining glass cloth and glass non-woven fabric. 〇Electrical properties are equivalent to glass cloth-based laminates, and it maintains 70% of the mechanical properties of glass cloth-based laminates. 〇Excellent processability for cutting and punching. 〇Flame-retardant certified material for railway vehicles (3mm). 〇There is also ES-3711, which consists only of glass non-woven fabric. |
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The fundamental technologies of our company are Laminating Technology and Casting Technology. We are deeply exploring these two technologies and advancing diversification. In the case of general-purpose products, we continue our self-help efforts, such as pursuing thorough rationalization to become a last-one company.