The probable reason for your problem is the ultraviolet (UV) transparency of the plastic and the fact that epoxy bonds are not very UV resistant. Even epoxy coatings are not recommended for outdoor applications because they discolor under UV.
This company recently announced it will launch new copolyester heat seal coating formulations for food packaging applications at this year’s PACK EXPO.
Foam tapes are used in a wide range of markets, such as automotive, packaging, electronics and medical. They serve a number of functions—from vibration dampening to shock absorption to temperature insulation.
Both of these types of adhesives have the advantage of not containing solvents and being single component, so no measuring or mixing is involved. In addition, they both use moisture to initiate the curing.
As registered products the three products now appear in the NSF White Book.
December 6, 2017
Fluoramics, Inc. recently announced that three of its leading products, LOX-8 Paste, LOX-8 Grease, and Formula-8, have received registration from the NSF International Guidelines for Nonfood Compounds.