Many poly bottles present adhesives challenges.
For example, Polyethylene (PE), Polypropylene (PP) and Polyethylene terpolymer (PET) are “non polar” or in other words, chemically inert.
In order to make them gluable with conventional liquid label glues they have to be surface oxidized by flame or corona discharge (electron bombardment).
The treatment will wear off with time. Gluability can be determined with a dyne kit. Our lab can test for gluability or show you how to.
The manufacturers of poly bottles will often offer “treated” bottles. The manufacturers of poly coated glass bottles do not.
Adhering to “untreated” poly bottles or poly coated glass requires specially formulated glues.
Our PET series of label glues are clean machining, will run at high speeds, exhibit 100% fiber tear, work on wet glass, set before the case packer and are ice proof.
At Pacific Adhesives, we can find the solution to your labeling adhesive needs. If we don’t have an adhesive already, we’ll custom formulate one!
For more information, call us at 1-800-352-0012 or Contact Us here.