Rectangle Stock, Garolite G-10/FR4, Standard, Plastic Length 48 in, Plastic Width 4 in, Plastic Thickness 0.375 in, Yellow, Plastic Clarity Opaque, Tensile Strength 38,000 psi, Impact Strength 14.0 ft-lb/in, Water Absorption 0.15 Percent, Plastic Density 0.072 lb/cu in, Corrosion and Chemical Resistance Good