3240 Epoxy glass fabric laminated sheet

3640 Epoxy glass cloth laminated tube

3840 Epoxy glass cloth laminated rod

FR-4 Epoxy glass fabric laminated sheet

It is created from electrical glass cloth that has been impregnated with epoxy resin under pressure and heat. With high mechanical strength and electrical properties, thermal-resistant and wet resistant, used for the insulating spare parts of the electrical appliances and transformers. The grade is for class B/F.

Specific requirements will do them according to agreement between us.

Sheets: Thickness for 0.5-200mm

Size for 1000X2000mm

Tubes: Thickness for 1-300mm

Size for ¦µ 6-2000mm

Technical data sheet

1. Flexural strength lengthwise >=340 MPa
2 . electrical strength parallel to lamination >=33 KJ/m2
3. Water absorption: 17-73 mg
4 . Electrical strength perpendicular 90+-2oCin transformer oil KV/mm 10.2-16.9
5. Breakdown voltage parallel to lamination in 90+-2oCin transformer oil >=35 KV
6. dissipation factor <=0.04
7. Surface resistively >=1.0*1013Ω
8. Volume resistively at room temperature>=1*105 MΩ.m

after wet >=1*103 MΩ.m


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Category: Epoxy fiberglass Laminated sheet
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