Polyester resin sheet is a composite material composed of woven fiberglass mat with an polyester resin binder that is flame resistant (self-extinguishing).It has characteristics of high strength, excellent electrical properties and chemical resistance. It can be machined by CNC into very complex parts , which is widely used in UPS,transformer, switch cabinet etc. We are the professional insulation materials manufacturer in China , the materials have been exporting to more than 30 countries all over the world .
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. Due to above characteristics , this material will be more and more widely used in every electrical equipment .
Feature of product :
1.Good flatness, smooth surface, no pits, excellent thickness tolerances.
2.Electric performance is stable in high temperature.
3.Low water absorption, good moisture resistance and dielectric properties .
4.Stable electrical insulating properties, good electrical performance in dry or wet conditions.
5.High mechanical strength, drilling, Machining and Cutting is available.
6.High mechanical properties and dielectric properties.
7.Good mechanical workability.
|Hong Cheng Grade||HC-GPO3|
|IEC 893 / EN 60893 Grade||UP GM 203|
|DIN 7735 Grade||HM 2471|
|ANSI (NEMA) Grade NEMA LI-1||GPO-3|
|Items||Test Method||Unit||Typical Values|
|Physical Properties||Color||Visual inspection||----||Red/White/Brown/Grey|
|Specific Gravity||IEC 60893-2:2003||g/cm3||1.95-2.05|
|Mechanical properties||Tensile Strength||IEC 60893-2:2003||Mpa||≥130|
|Compressive strength||IEC 60893-2:2003||≥300|
|Flexural Strength||IEC 60893-2:2003||≥180|
|Impact strength||IEC 60893-2:2003||KJ/m2||≥60|
|Electrical properties||Volume Resistivity||IEC 60093:1980||Ω·m||≥ 1.0 x 1010|
|Surface Resistivity||IEC 60093:1980||Ω||≥ 1.0 x 1012|
|Electric Strength ┴||IEC 60893-2:2003||kV/mm||≥ 12|
|Breakdown Voltage //||IEC 60893-2:2003||kV/25mm||≥ 80|
|Arc Resistance||IEC 61621:1997||sec||≥180|
|PTI Proof Tracking Index PTI||IEC 60893-2:2003||---||≥600|
|Dielectric Constant||IEC 60893-2:2003||---||4.0-5.0|
|tgδ Dissipation Factor||IEC 60893-2:2003||---||≤0.03|
|Thermal properties||Coefficient of Thermal Expansion||ASTME 228-11||1/K||≤2x10-5|
|Temperature Index||IEC 60085:2004||℃||155|
|Flame Resistance performance||Oxygen Index||ISO 4589-2:1996||%O2||≥ 30|
|Flame Resistance||IEC 60893-2:2003||---||V-0|
|Toxicant(Emission halogen etc.)||E662||---||
|Other properties||The anti microbial properties of bacteria||G21-G22||---||
Application of material :
As mentioned above , this material can be easily cut , grinded and machined into parts by CNC , the machined parts are widely used in mechanical, electrical and electronic insulation structure parts, in General machines parts and gear, generators, Pads, base, baffle ,Generator, transformer, fixture, inverter, motor and etc.
More over , due to low water absorption , it has been widely used in outdoor electrical equipment such as wind driven generator etc.