Duramold is a composite material process developed by virginius e. clark. birch plies are impregnated with phenolic resin, such as haskelite and laminated together in. Learn how to make an aircraft quilt block. free paper piecing pattern included for 3 sizes. step-by-step instructions for the beginning quilter.. Some of our favorite hobby items: coloring books for adults! the benefit of coloring for adults has been shown in countless studies..