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LAMAL™ HSA Laminating Adhesives

The polyether urethane component of a two-component laminating adhesive which requires the use of a coreactant. This polyether urethane, in conjunction with coreactant LAMAL™ C, functions as an adhesive for flexible packaging. LAMAL™ HSA adhesive is different from most conventional polyurethane adhesives in that it is not affected by alcohols or small amounts of water. The most commonly used diluents for LAMAL™ HSA adhesive are denatured Ethanol and Isopropanol. LAMAL™ HSA adhesive adheres to a wide variety of substrates including cellophane, treated polyolefins, paper, polyester, polyamides, PVdC coated and metallized materials, vinyl and treated heat sealable layers of coextrusions. The optimum performance of the LAMAL™ HSA adhesive is achieved when substrates are corona treated. LAMAL™ HSA adhesive provides optical clarity, high bond strength, high heat resistance and moderate chemical resistance. The admixed LAMAL™ HSA adhesive is unaffected by high humidity and temperature other than the normal loss of solvent by evaporation. LAMAL™ HSA adhesive should be admixed with LAMAL™ C or LAMAL™ CR-1-80, preferably with a mechanical mixer, then the diluent solvent should be added with continued mixing until uniform. LAMAL™ HSA adhesive diluted with alcohols can be used for laminating heat sensitive substrates and where low levels of retained organic solvent are desirable. LAMAL™ HSA is not compatible with other conventional isocyanate curing polyurethanes and, therefore, all equipment has to be thoroughly cleaned before interchanging the different types of polyurethane.

Properties

These values are not intended for use in preparing specifications.

Typical Properties

  • Functionality Yes No Adhesive

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LAMAL™ HSA Laminating Adhesives
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LAMAL™ HSA Laminating Adhesives
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