Start with the conclusion. Child resistant packaging is not about making a bottle harder to open. It is a performance claim that has to be proven twice over: most young children must fail to open the...

Imagine a production manager at a pharmaceutical plant receiving a quality alert two days after a batch is shipped. An independent re-test of the oral liquid bottle caps shows that 40 percent of chil...

When a pharmaceutical vial fails its leak test, the first component inspectors often check is not the glass, stopper, or crimp, but the cap liner and seal combination. Cap liners and seals create the...

You hold a 2 oz bottle of acrylic paint, and the stock cap does not give you the control you want. A search for a replacement dispenser returns a long list of caps marked 38/400. That code is not a b...

Put a 24 mm cap on a 24 mm bottle and the closure can still leak, because the number molded on top of a cap is only half of the specification. The short answer is that a closure size combines a nomin...

Filling lines rarely fail for a single reason. When a capping station jams on every tenth vial, the first suspect is the machine, but the real cause is often a closure supplier that allowed the cap s...

When a biologics manufacturer traced a failed stability batch to moisture ingress through a poorly matched cap liner, the investigation consumed six months of development time. The container itself m...

Euro PP caps are defined by their standardized threading compatible with Euro-neck glass bottles, strong chemical and moisture resistance from polypropylene construction, built-in tamper-evident fea...

Aluminum caps are installed by preparing a clean, properly sized surface, aligning the cap over the opening or post, and securing it using the correct combination of adhesive, crimping, or fasteners...