Presensitized Positive Photoresist PCB, Double-Sided, 4.5″ x 6.5″ Printed Cir…

Positive Acting Presensitized PCB Double Sided 4.5″ x 6.5″ •Ideal for small production runs •Highly sensitive positive resist coated on copper foil •Can go direct from artwork. No need to reverse artwork. •Fiberglass substrate; 1 oz. copper foil. •Short exposing time: 60-90 seconds (by exposure unit) 6-10 minutes (by florescent lamp) •Color varried after exposure