How Do I Test PET Bottle Neck-Cap Seal Quality Before Purchasing?
Test PET bottle neck-cap seal quality with vacuum, pressure, and dye penetration checks on assembled samples before bulk ordering to avoid leaks.
Should I Use the Same Supplier for PET Bottles and Caps?
Using the same supplier for PET bottles and caps cuts leakage risk and simplifies quality control. See when single-sourcing pays off—and when it doesn’t.