A new hose is available from this company. The PureFlow™ hoses reportedly are engineered to reduce the effects of adhesive degradation and extend the useful life of hoses in high-performance environments.
When adhesive sits inside a typical heated hose, it begins to degrade. The effects of this degradation include charring, discoloration, curing and odors. Adhesive degradation can also lead to nozzle-clogging char, resulting in downtime and pop-opens, and can affect the rheology of the adhesive, yielding poor adhesive processing and machine pollution. Polluted and deteriorated adhesive can ultimately interfere with creating strong bonds on a package.