APPLICATION TECHNOLOGY 3M gets the call to deliver enhanced bonding


An innovative combination of industrial tapes and adhesives from 3M is helping to deliver greater durability and product life for a specialist manufacturer of commercial telephones.


service manufacturer which installs all the internal components. The finished product is then supplied to a telecommunications provider for sale primarily to stock exchanges and brokers worldwide. The enclosures differ from standard


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telephones in that the front cover features a number of transparent polycarbonate display windows, for LCD text display screens. Historically, the bonding between front cover and windows was achieved with the use of adhesive tape strips, combining a number of widths to fit various contact areas. This operation was labour intensive and operator-dependent, as the adhesive strips were cut to the desired length and applied manually. In order to improve its operations, RS


Coatings technical department approached the industrial adhesives and tapes team at


3M who recommended an alternative solution based around die cut profiles of 3M High Performance Double Coated Tape 9087. This product features an adhesive with a PVC carrier offering


ased in Lichfield, Staffordshire, UK, RS Coatings Ltd manufactures the enclosure sets for sophisticated communications interface devices. Around 300 enclosure sets are supplied each day to an electronic


high peel and shear strength, excellent resistance to UV light, and good solvent and plasticiser resistance. RS Coatings designed a range of die cut forms around


the product lay-out. This more user friendly bonding method increased the contact surface area between windows and front covers, optimising the adhesive’s performance. With this philosophy in mind and in order to maximise adhesion between components, a further bonding upgrade was suggested by 3M, coupling the die-cut tape with 3M Scotch-Weld Acrylic Adhesive DP807. This is a two-part MMA acrylic-based adhesive which reaches handling strength in 15 minutes, with high overlap shear and peel strength offering excellent durability on most plastic surfaces. RS Coatings Ltd managing director Laurie Richardson


commented: “3M’s response to the reported problem was very professional, offering alternative solutions and product samples promptly. Overall the bonding system now in place more than meets expectations. The die cut tape enables a quicker and easier application while reducing waste, and the use of an adhesive in tandem with the tape is creating a far stronger bond.” He added: “Currently the products are being applied manually, but we are looking at automating the adhesive application process.” Rob Musgrove of 3M’s industrial adhesives & tapes division


added: “This application shows the versatility of 3M products and how they can work together to create the perfect bonding solution – whether applied manually or automatically.”


Intertronics sees red Permabond meets Boeing specifications


Intertronics says that its DYMAX’s Ultra-Red™ fluorescing adhesive technology allows users to “see red” helping improve quality and authentication.


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he Ultra-Red™ technology is based on the fact that many plastics naturally fluoresce blue under UV light – this minimises the inspection advantages of using blue- fluorescing adhesives in parts assembly, red fluorescing


adhesives however remain naturally clear until exposed to UV light, at which point they fluoresce bright red providing a vivid contrast that permits accurate bond-line inspection. The red fluorescence does not absorb the same light energy wavelengths as those used to cure the adhesive, resulting in faster and deeper cures when compared with the same adhesives containing blue fluorescence. Peter Swanson, managing


director at Intertronics explained: “Red fluorescing adhesives and coatings can be used by manufacturers for product authentication. When measured, this technology produces a distinctly unique energy peak that cannot be reproduced by any other fluorescing compound. This offers manufacturers the ability to assemble or mark their products and be assured that, in the event of a future challenge as to the authenticity of the product’s origins, the products can be positively identified.”


156 Fastener + Fixing Magazine • Issue 67 January 2011 Permabond® Engineering Adhesives has


announced that Permabond 910 meets Boeing Specification BMS5-36D Type I and Permabond 102 meets Boeing Specification BMS5-36D Type II Grade 1.


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ermabond 910 is a methyl cyanoacrylate and was first listed to this Boeing Specification in 1958. Permabond 102 is an ethyl cyanoacrylate that was first listed in 1970. “Both of these instant adhesives


have a long history of providing strong, fast, reliable bonds to a variety of components. Permabond 910 excels on metals and Permabond 102 on plastics and composites.” Permabond is a global, ISO 9001:2000 certified


manufacturer of engineering adhesives and sealants for manufacturing, assembly, repair, and maintenance. Permabond manufactures cyanoacrylates (instant adhesives), anaerobics (for threadlocking, retaining, gasketing and pipe sealing), structural adhesives (one or two component epoxies and toughened acrylic adhesives), and UV - visible curable adhesives.


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