Taking into consideration the substrates surface energy when selecting an adhesive

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Link: http://adteputek.com/b2evolution/blog2.php/2010/02/15/taking-into-consideration-the-substrates

When selecting an adhesive one needs to take into consideration the substrates surface energy as a factor in determining which adhesive is used and whether a primer is necessary. All metals have a high surface energy and thus are relatively easy to bond to. High Surface Energy Plastics include Kapton® (Polymide), Phenolic, Nylon, Alkyd Enamel, Polyester, Epoxy Paint,Polyurethane Paint, ABS, Polycarbonate, PVC (Polyvinyl Chloride), Noryl®, Acrylic, and Polane® Paint. I recently had a project for bonding to two small injection molded pieces made of pvc resin for a presentation laser pointer. I selected the Parfix 3422 Ethyl Cyanoacrylate, as a surface insensitive adhesive was not needed. Low surface Energy Plastics include PVA, Polystyrene, Acetal, EVA, Polyethylene, Polypropylene, Tedlar®, and Teflon®. These might include both a Surface Insensitive Adhesive and a Primer.

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