High Density Polyethylene (HDPE) Plastic Lab Bottles offer good strength and chemical resistance. HDPE bottles offer stronger tensile strength than LDPE containers, are harder and more opaque, and can withstand somewhat higher temperatures: 120°C (248°F) for short periods, 110°C (230°F) for longer periods. High-density polyethylene cannot withstand autoclaving. Can't find what you're looking for? Call us for immediate assistance.