ASTM C961 Glass Lap Shear Specimens

Glass substrates (also called specimens or panels) used in testing by ASTM C961 (Lap Shear Strength of Sealants). Each substrate is 1" x 3" x 0.25" and is made from clear float glass (also known as annealed glass). ASTM C961 uses two substrates to make a single adhesive test specimen assembly, and the test uses six specimens (twelve substrates total). ASTM C961 substrates may be made from other materials; contact Metaspec to learn more.