Phenolic cotton sheet

3026 Mechanical properties(fine weave), poor electrical properties, good machining performance. Similar to IEC PFCC203. 3027 Mechanical and electrical applications(coarse weave), better electrical properties than other phenolic cotton cloth laminates. 3028 Mechanical and electrical applications(fine weave), better electrical properties than other phenolic cotton cloth laminates. Recommended for small parts. 3025B 3025C lTemperature grade: E glass(120°C) lColor: nature (light brown) lThickness: 1.6-100mm lSize: 1020x2040mm1220x2470mm 3025CS lTemperature grade: E glass(120°C) lColor: black lThickness: 1.6-100mm lSize: 1020x1220mm 1020x2040mm1220x2470mm 3025D lTemperature grade: E glass(120°C) lColor: nature lThickness: 0.5-100mm lSize: 1020x1220mm 1020x2040mm1220x2470mm 3026 lTemperature grade: E glass(120°C) lColor: nature(light brown) lThickness: 0.8-100mm lSize: 1020x1220mm 1020x2040mm1220x2470mm 3027 lTemperature grade: E glass(120°C) lColor: nature(light brown) lThickness: 0.8-100mm lSize: 1020x1220mm 1020x2040mm1220x2470mm 3028 lTemperature grade: E glass(120°C) lColor: nature(light brown) lThickness: 0.8-100mm lSize: 1020x1220mm 1020x2040mm1220x2470mm Properties Unit Grade 3025CS 3026 3027 3028 Flexural strength perpendicular to laminations ≥ MPa 70 110 90 100 Impact strength parallel to laminations (Charpy) ≥ 5.0 7.0 7.8 6.0 Bonding strength (≥10mm in thickness) ≥ N 5500 — — — Dielectric strength perpendicular to lamination (in 90±2°C transformer oil, 1mm in thickness) ≥ kV/mm — 0.82 5.1 6.3 Breakdown voltage parallel to laminations (in 90±2°C Transformer oil) ≥ kV — 1 18 20 Permittivity (48-62Hz) ≤ — — — 5.5 5.5 Insulation resistance after Impregnated in water(D-24/23) ≥ Ω — 1×106 5×107 5×107 Density (1.30-1.40) Water absorption (D-24/23, 1.6mm in thickness) ≤ — 220 145 145 Color Black Natural Reference standard Q/TXXFR001-2009