The 57WCAO is a Rieke® 70mm natural polyethylene (PE) plastic screw cap (NPS 8TPI) with gasket and Flexspout. This closure has a tamper evident, tear-out diaphragm. The 57WCAO offers a tight seal as well as easy access to a container for filling and dispensing. This cap can be tightened and opened with the W397 wrench (Part # 34WSCT).
Polyethylene (PE) is the most commonly produced and used plastic polymer in the world. PE has good chemical resistance and is typically translucent and waxy in nature. We have various products made of polyethylene, from buttress screw caps with Flexspout to spill decks. PE bottles have a maximum hot fill temperature of 120°F.
This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility.