Light Green EPGC201 epoxy fiberglass cloth Glass good fire resistance with high heat retardant
Light green FR4 epoxy sheet is are made of woven glass cloth impregnated with epoxy thermosetting resin,laminated under high temperature and high pressure ,the woven glass cloth shall be alkali-free and treated by silane couple.
FR4 epoxy fiberglass cloth sheet have Good mechanical strength(the thermal state retension rate can reach over 50%)under medium temperature or the thermal state,as well as the stable electric properties(the insulation resistance after immersion reachers 10^12Ω)in high humidity condition .and also with higher voltage end urance /withstand voltage (over 35KV),parallel to laminated ,and they also have Good flame retardant property.the sheets also passed the toxic and hazadous substance detection(RoHS Report)
|Hong Cheng Grade||HC-FR-4|
|IEC 893/EN 60893 Grade||EPGC 202|
|ANSI (NEMA) Grade NEMA LI-1||FR-4|
|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|
|//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|
Our Machining Advantage:
|Advantages:||1. Proficient in advanced programming software, such as: Mcam9.1, UG software programming , to meet the requirements of machining on complex surface;
2. We have a senior R&D engineers team and the team have the ability in designing the fixture independently to meet production requirements of high quality , high yield and lower cost.
3. To meet the customers’ requirements , company owned dozens of high-precision CNC equipments to short the delivery time .
4. The company have dozens of No.850&No.650 CNC machining center (with tool storage) , these machines can be used to complete multistep processes of complex parts at one-time.
5. The company owned several Large gantry CNC machines in 1000*1200mm , large panel parts can be completed at one-time by high-precision processing and avoid deviation from machining.