Solvent Borne Acrylic Film / Foil Heat Sealing Adhesive

Adhesives Formulation

Applicable Type

Solvent borne Adhesives

Applicable Base Polymer

Acrylics & Acrylic Copolymers

Applicable Industrial Sectors

Papers & Packagings

Applicable Base Polymer Properties

Acrylic solvent solutions offer an adhesive with excellent overall performance properties. Acrylic resins are tremendously versatile due to the large number of different monomers and resins available. Acrylic adhesives can provide bonds ranging from flexible and tough to hard and rigid depending on the formulation. Acrylic adhesives inherently have very good UV and oxidative stability and are generally preferred for outdoor applications. Solvent-based acrylic adhesives provide somewhat better chemical and heat resistance than water borne acrylics.

Typical Formulation Ingredients

Ingredient

Parts by weight

n-Butyl methacrylate polymer (Elvacite 2044, Lucite International)

xxxxx

Solvent, methyl ethyl ketone

xxxxx

Vinyl chloride-acetate resin (UCAR Solution Vinyl VMCC, Union Carbide Corporation)

xxxx

Solvent, toluene

xxxx

(Source: Lucite International, Elvacite Acrylic Resins)

Typical Properties

Properties

Percent solids,

• % by weight

xxxx

• % by volume

xxxx

Typical peel strength, 90° polystyrene to aluminum foil, g/in

xxx

Processing

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Resulting Properties

Elvacite 2044 is one of the softest and tackiest of the Elvacite resins. It is the preferred grade for many specialty adhesive applications, particularly for bonding coated “Mylar” polyester film and other nonporous plastic films and foil. The above formula is suggested as a heat-seal adhesive for laminating biaxially oriented polystyrene film to aluminum foil. Elvacite 2044 resin also finds use in specialized adhesive applications where clarity and light-fastness are required. The solvent system can be adjusted readily for ease of handling on conventional adhesive applicators.

Tips and Tricks

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