Mor-Free™ 421 is a solvent-free, 100% solids, two component polyurethane adhesive system that can be applied at room temperature. As the reactivity of Mor-Free™ 421 is high, the laminates can generally be further processed in as little as six hours. The chemical curing is generally completed within 3 days at room temperature (72 °F). As always, converters should verify appropriate cure times for their individual application. Mor-Free™ 421 can be used for laminating all polyolefin films, including LDPE to LDPE, OPP to OPP, and OPP to LDPE, as well as nylon, aluminum, polyester, and other packaging substrates. The films may be unprinted or reverse printed with the appropriate laminating grade inks.
Features & Benefits
Mor-Free™ 421 offers rapid bond development to decrease time needed for processing while offering good metal adhesion. Mor-Free™ 421 can be used for a wide range of applications at room temperature and below.
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