Unidirectional tensile, flexural, impact, and dielectric fiber reinforced polyester composite test specimens are fabricated by wet lay-up technique (Srinivasababu et al. 2010). All the fabricated composite specimens are conditioned as per ASTM D 618-05 Procedure A in an environmental chamber, supplied by the Narang Scientific Works Pvt. Ltd., New Delhi. The physical dimensions of all the specimens are measured as per ASTM D 5947-06 Test Method A. The tensile and flexural tests are conducted on specimens as per ASTM D 5083-02 and ASTM D 790-07, respec­tively, on Electronic Tensometer supplied by Kudale Instruments Pvt. Ltd., Pune. The Charpy impact test is conducted on specimens using Computerized Izod/ Charpy Impact Tester, supplied by the International Equipments as per ASTM D
6110-08. The dielectric test is performed on composites using the Dielectric Strength Tester according to ASTM D149-97a step-by-step test, supplied by Rectifiers & Electronics, New Delhi.