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During the extrusion blow molding process a parison is extruded, the bottom and top are pinched off, and then blown into the shape of the cavity. The excess plastic that is pinched off at the top and bottom of the mold cavity is known as flash. Removal of flash is done post-molding and requires removal either manually or mechanically. Any post-molding operations run the risk of damaging parts so minimizing and managing flash is important for quality parts.Read More
Blow molding is the manufacturing process by which hollow plastic parts like bottles and containers are formed. At Apex, we use a process called continuous...Read More
Whether a bottle is manufactured to hold shampoo, barbecue sauce, alcohol, or a myriad of other contents, most of the time it requires a label or imprint...Read More
This article titled "How to Fix Pinch-off Failures" by Lew Ferguson from Parisons was reprinted with persmission by the author. Article on "How to Fix Pinch-...Read More
Before we start working on a new project for a customer, we always want to get project specifications first. We have over 40 years of experience in all kinds...Read More
The neck of a plastic bottle holds the closure onto the container with protruding threads. When determining the compatibility of continuous thread (CT)...Read More
The backbone of any good Quality Assurance program is a solid Quality Management System (QMS). By adhering to the requirements of QMS, we can be assured that...Read More
With extrusion blow molding, a good mold can get you a long way toward where you want to be. To get the rest of the way, the process – the type of plastic,...Read More
The Life of A Blow-Molded Product Mold If you were preparing to drive cross country, chances are you’d schedule an inspection of your car well before you and...Read More
Does Your Manufacturer Follow Good Manufacturing Practices? Apex Plastics is an FDA registered, ISO 9001:2008 plastics blow-molding manufacturer. Companies...Read More
Setting Up for a New Part The manufacture of any new part starts with the mold, but even once we have it there is still plenty of work to do. Creating parts...Read More
At Apex Plastics, our employees are at the heart of everything that we make. When consistency and quality assurance are as important as they are to us, it is...Read More

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