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ROBOND™ L-90M is a water-based acrylic adhesive used primarily to laminate substrates to create flexible packaging.
ROBOND™ L-90M can be used on its own as a one-component adhesive, or it can be used in combination with coreactant CR 9-101 as a two-component system to improve shear strength, chemical resistance, and heat resistance. It is used to laminate treated polyolefins, PVDC-coated substrates, metallized films, and nylon. These laminations are typically used to create flexible packaging for food and beverages. ROBOND™ L-90M has incredibly fast bond development when used with CR 9-101, and laminates can be slit in as little as 5 minutes after coating. The quick postprocessing speeds, coupled with a long pot life and low foaming properties, allow for increased efficiency of water-based lamination operations. This adhesive is ready to use at the solids level supplied or may be diluted to meet specific application requirements.
Solids, %: 42
Viscosity at 77°F, cPs: 45
Weight/gallon, lb/gallon: 8.8
pH: 6.5–7.5
Solvent: None
Coreactant: Coreactant CR 9-101
Mix ratio, pbw: 100:2.0
Diluents: Water or water:isopropanol at a 1:1 blend
Wet appearance: Milky white
Dry appearance: Clear and transparent
Shelf life of unopened container, days: 360
Storage temperature, °F: 50–100
Primary Chemistry: Waterborne acrylic
Alcohol-free reductions
High clarity
Lower nip temperature
Low foam
Fast time to slit
High heat and chemical resistance
Adhesion to high-slip films
Low odor
Inefficiencies in flexible packaging manufacturing due to long postprocessing times
Poor adhesion of adhesives to high-slip films
Flexible packaging
Industrial laminates
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