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If the substrate is smooth, glossy or shiny, it should be primed with a glass primer (such as LORD AP-134) to provide a stronger bond. Oil or grease should be removed with a mild organic solvent such as isopropyl alcohol.
#Non porus free#
Surface preparation should include making sure the surfaces are clean, dry, and free of loose debris.
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If the assembly might be subject to vandalism, LORD 320/322 will provide the best protection because its harder cured state makes it more difficult to pry apart. Lap shear tests show over 1500 psi of strength for aluminum-to-aluminum bonding.įor signs that are large and/or heavy, LORD 320/322 will provide the strongest bond and may be the best product for the job. LORD 320/322 is formulated with rubber tougheners that give it excellent environmental and impact resistance. LORD 320/322 is a two-part epoxy, high viscosity, grey adhesive for bonding metals, SMC, fiberglass and natural materials. LORD 7610DTM offers indirect UV resistance and lap shear tests show about 500 psi of strength for metal bonding. It is a moisture-cure material that takes approximately 24 hours to set. LORD 7610DTM is soft and flexible as it is being dispensed and it maintains much of that softness and flexibility throughout the life of the product. LORD 7610DTM is a one-part, bright white, general purpose adhesive/sealer for bonding bare metal and a wide variety of materials, including natural materials like stone. We offer two high-performing adhesive options, each with a work time of 20-40 minutes, that address all of these surface conditions. Some substrates, such as concrete, are porous some, such as glass, are nonporous some, like certain kinds of stone, may have an uneven or bumpy contact area. Strong bonds can be achieved using adhesives-the key is to select the appropriate product for a given substrate. For a smooth, unblemished look, designers often want to avoid the use of mechanical fasteners, choosing to bond sign elements using adhesives instead. Accomplishing this look in signage requires joining dissimilar elements, including metal, wood, slate, stone, concrete, granite, glass and more. Contemporary designers often mix materials to lend their designs a sense of contrast and complexity.