600 Series Positive Presensitized Copper Clad Boards feature a translucent laminate comprising a continuous woven glass cloth impregnated with epoxy resin. The boards are made of FR4, which is a flame retardant version of G-10 material.
Applications & Usages

These boards are ideal for prototyping and small production runs. They are used by the circuit processing industry, and by students.

Features:
FR4 1/16″ (1.60mm), single sided 100 x 150 mm / 4″ x 6″
1 oz copper boards (1.37 mil, 35 µm)
Flammability meets UL 94V-0 (file # E98983)
High heat resistance
UV blocking