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Surface-to-Surface Strength

3M Large Surface Lamination product solutions resist shear and peel stress

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Large Surface Lamination Assemblies

  • Large surface laminations are two surfaces of similar size, either rigid or flexible, bonded together where a majority of one surface is contacting the other. These assemblies are common in transportation, appliances, furniture and construction. They often require full surface attachment, a flexible bond, fast bonding with little or no fixturing and the ability to position parts. The most efficient way of assembling a large surface lamination is with adhesives or tapes.

    Large surface lamination assemblies typically require:​
     

    • Shear and peel strength​
    • Temperature and solvent resistance​
    • Favorable aesthetics with low read through​
    • Speed and convenience in application​
    • Fast rate of strength build​

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Peel and Cleavage stress in Large Surface Lamination Assemblies​

  • Peel and Cleavage stress in adhesive joint

    The failure of a large surface lamination is a common sight; everyone can relate to a table with a peeling edge band or a carpet tile with a loose corner. The source of this delamination is relatively clear: peel. Shear and tensile forces, while present, are often negligible due to the large bond area over which to disperse the load. Most large surface laminations involve attaching a flexible surface to a more rigid surface, resulting in peel. However, some large surface laminations bond two rigid materials together, such as composite panel constructions, where the stress is cleavage.

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Product Categories and considerations for large surface lamination

3M Large Surface Lamination products bond entire surfaces quickly, with little or no fixturing, yet allowing for part positioning when dry. Finished products stay flexible and surfaces stay bonded, even when flexed

  • 3M Scotch-Weld™ structural adhesives for Large Surface Lamination Applications

    3M™ Scotch-Weld™ Structural Adhesives

    Acrylic, epoxy and urethane structural adhesives hold over 6.8MPa (1,000psi) in overlap shear strength. Best suited for applications where high load-bearing strength is required.

  • 3M™ Scotch-Weld™ PUR Adhesives

    One component, hot applied thermosetting adhesive with immediate strength and holding power. Final cured strength over 6.8MPa (1,000psi). Long open-time formulations can be spray applied.

  • 3M™ Adhesive Transfer Tapes

    A pressure sensitive adhesive on a liner. Can be laminated onto a surface by hand or by automation. Instant adhesion with no mess or waste and very thin bondlines.

  • 3M™ Spray Adhesives

    Solvent and water based adhesives can be sprayed, brushed or roll applied. Very fast and easy coverage of large areas including irregular and mildly textured shapes. Bonds the widest range of substrates.

  • 3M™ Hot Melt Adhesives

    100% solid, thermoplastic resins that reach bond strength in seconds. Long open-time formulations can be spray applied. Bonds irregular shapes and textured surfaces.


Performance Factors for Large Surface Lamination Assemblies

All 3M technologies shown below are commonly used in large surface bonding applications. Use the list below as a relative comparison of product performance.

  • + = Good ++ = Better +++ = Best

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Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at +27 011 806 2000.

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