Please be aware that this information may be stored on a server located in the U.S. For optimum adhesion, an adhesive needs to be thoroughly ‘wet out’ on the substrate to … If you do not consent to this use of your personal information, please do not use this system. Figure 3 - Surface Treatment Effect on Surface Energy. Different forms of surface preparation can increase the surface energy which increases wetting. 3M™ 300LSE Low Surface Energy Acrylic Tapes and 3M™ Scotch-Weld™ Structural Plastic Adhesive DP8010 Blue are two examples of adhesives designed to bond to some LSE substrates without a primer. The more surface wets out, the smaller the contact angle Zisman’s equation (Figure 2 provides an empirical relationship relating the contact angle to the difference between the surface energies of the substrate and liquid). Low Surface Energy Adhesives are designed to bond to hard to stick to surfaces such as plastics, polypropylene, polyethylene, polystyrene, thermoplastic polyolefin's, EVA, PTFE, powder coated paints and oily metal surfaces. Materials with a surface energy below 36 dynes/cm are considered low surface energy and are very difficult to bond. This technology is intended to help meet design and production challenges by effectively bonding polyolefins while saving the time and expense of priming or more complex surface treatments such as corona discharge. To achieve a strong bond, substrates must be treated with a primer prior to adhesive application. You will be contacted to verify your request. The Science of Adhesion Educational Series, The Science of Adhesion Educational Series is designed to be a comprehensive introduction to Adhesion Science and the use of tapes and adhesives in design applications. For bonding to these difficult-to-adhere-to surfaces, FLEXcon is promoting its extensive line of adhesives that can match any low-surface-energy … Quantities available while supplies last. Low surface energy, or LSE, plastics include materials such as vinyl, polyethylene and polystyrene and have unique surface characteristics making them harder for pressure sensitive adhesives to stick. If you are a 3M Distributor, contact your 3M Sales Representative. The Massetak Low Surface Energy Adhesive Kit, or ‘LSE’ kit for short, has been rigorously developed to bond even the most difficult of materials including plastics and thermoplastic rubbers like PTFE, polypropylene (PP) , polyethylene (PE) silicone rubber, TPV—all of which require special chemical surface treatments to LSE substrates can be very challenging to bond and often require specially designed adhesives and/or surface treatments and primers to get a good bond. While surface preparation techniques help increase the level of surface energy, new adhesive formulation advancements enable adhesives to bond to these materials with or without surface preparation. Low Surface Energy Adhesive Transfer Tapes. So you know the surface energy of a material in dynes per centimeter… now what? 3M takes your privacy seriously. This easy to use, 1:1 mix ratio product cures very rapidly, forming tough, durable bonds. Thus, their application is problematic for low energy materials such as polymers. Need help finding the right product for your project? New and innovative Low Surface Energy (LSE) materials requiring reliable, high performance, engineered specialty adhesive tape systems continue to emerge as manufacturing in North American markets surges. How Adhesives are Adapting to Low Surface Energy Materials. Surface Energy: This is a measure of how well an adhesive wets out over the surface of the material to which it is applied. Low Surface Energy Molecules on the surface of low-surface-energy materials are quite happy the way they are. 3M Scotch-Weld Structural Plastic Adhesive DP-8005 is solvent-free and bonds low-surface-energy plastics, as well as other plastics, steel, aluminum, concrete, glass, and wood. On a high energy surface substrate an adhesive ows providing a better bond. To achieve a robust bond in any joining application, good surface contact is required between the adhesive and substrates; the adhesive must spread across or “wet out” the plastic surface. Energy treatments are temporary—a short time after exposure, the polyolefin reverts to its original low surface energy. Most adhesives and tapes will adhere to most metals, so any time you’re bonding metal you have a wide range of adhesive options. 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