LabGlass Eisco™ Heavy-Duty Glass Beakers, Eisco Scientific LLC

High quality Borosilicate 3.3 glass with 5 mm thick walls provide maximum durability and strength against breakage.

Eisco heavy duty beakers are made of high-quality Borosilicate 3.3 glass. These durable glass beakers have a low temperature gradient and can withstand high temperatures as well as thermal shocks. They are microwaveable, autoclavable, and have superior chemical durability. These heavy-duty beakers are calibrated within a 5% tolerance. Eisco Labs Borosilicate glass has the following heat tolerances: Strain point −515 °C, annealing point 565 °C, softening point 820 °C.