HS-980B Glue Sticks For PDR, 7/16'' dia x 10'' Long, 5 Lbs Bulk Carton (Approx. 90 Sticks) Developed in 2001 specifically for the PDR industry, the most thoroughly tested, most widely used PDR glue available today! Sold and tested worldwide to professional PDR technicians! Approx. Working Time = 35 Seconds Viscosity @350 F = 7,425 cps Excellent removabilty with just a few drops of Isopropyl Alcohol! Non-Toxic, Ingredients meet FDA CFR 175.105 for intermittent food contact