Product Introduction:
Epoxy resin sheet is a composite material composed of alkali-free woven fiberglass cloth with epoxy resin binder that is flame resistant (self-extinguishing).It has characteristics of high strength, excellent electrical properties and chemical resistance.
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 Processing characteristics, lend utility to this grade for a wide variety of electrical and mechanical applications.
Feature of this material as below :
a. Good flatness, smooth surface, no pits, standard thickness tolerances.
b. Low water absorption, good moisture resistance and good dielectric properties .
c. Stable electrical insulating properties, good electrical performance in dry or wet conditions.
d. High mechanical strength, good processability Punching, Drilling, Machining and Cutting is available.
e. Good mechanical workability.
f. In high temperature electric performance is stable.
g. High mechanical properties and dielectric properties.
| Hong Cheng Grade | HC-FR-4 | |||
| IEC 893/EN 60893 Grade | EPGC 202 | |||
| ANSI (NEMA) Grade NEMA LI-1 | FR-4 | |||
| DIN 7735 | Hgw2372.1 | |||
| JIS GRADE | EL-GEF | |||
| Item | Test method | Unit | Typical Values | |
| Physical Properties | Color | Visual inspection | － | Light green / yellow |
| Specific Gravity | IEC 60893-2:2003 | g/cm3 | 1.90 - 2.15 | |
| Water absorption | ISO 62:2008 | % | ＜0.3 | |
| Electrical Properties | Electric strength ┴ | IEC 60893-2:2003 | KV/mm | ≥ 14(3.0mm) |
| Breakdown Voltage // | IEC 60893-2:2003 | KV | ≥ 60 | |
| Volume Resistivity | IEC 60093:1980 | Ω.m | ≥ 1.0×1012 | |
| Surface Resistivity | IEC 60093:1980 | Ω | ≥ 1.0×1014 | |
| (1 MHZ) Dielectric constant | IEC 60893-2:2003 | ﹍ | 4.0-5.5 | |
| (1MHZ)Dissipation Factor | IEC 60893-2:2003 | ﹍ | 0.04-0.05 | |
| Proof Tracking Index PTI | IEC 60893-2:2003 | V | ≥ 200 | |
| Insulation resistance after immersion 24Hrs in Water | IEC 60893-2:2003 | Ω | ≥ 5×1010 | |
| Mechanical Properties | Flexural Strength ┴ | IEC 60893-2:2003 | MPa | ≥ 340 |
| Charpy Impact strength // | IEC 60893-2:2003 | KJ/m2 | ≥60 | |
| TensileStrength | IEC 60893-2:2003 | MPa | ≥300 | |
| //Bond Strength // | IEC 60893-3-4:2003 | N | ≥8000 | |
| Compressive Strength┴ | IEC 60893-2:2003 | MPa | ≥ 350 | |
| Flame Resistance Properties | Flame resistance | IEC 60893-2:2003 | ﹍ | V-0 |
| Temperature Index | IEC 60085:2004 | ℃ | 155 | |
| Toxicant Content | E662 | ﹍ | Low | |
| Others | Acetone Resistance | boiled | Min | 30(OK) |
Application of EPGC202 material
Used in mechanical, electrical and electronic insulation structure parts.
Used in General machines parts and gear, generators, Pads, base, baffle,Generator, transformer, fixture, inverter, motor.
Due to low water absorption , it has widely used in outdoor equipment .
Our services cover all industries and reach all parts of the world.
