18 lb Translucent Bond For non-archival purposes, our smooth, translucent bond is great for printing test prints. And for production of intermediates for diazo reproduction from your inkjet plotter. Low cost alternative compared to using Vellum for production printing. Core Size - 2.0" Basis Wt - 18 lb Caliper - 2.8 mil Opacity - 70% Smoothness - 110