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In contrast, the low-viscosity, hot-crosslinked silicone rubber (RTV/NV) is medium-elastic, has good flowability and low viscosity. It is therefore particularly suitable for the manufacture of elastic wax or relief casting moulds, casting moulds for figures or decorative panels, moulds for casting with epoxy / casting resin, cement, plaster or other flowable materials. PA - polyamide is high-strength and impact-resistant. Its abrasion and wear resistance combined with excellent sliding properties make it a preferred construction material in machine or vehicle construction. Because of its high mechanical strength, it has now even displaced many metal components in vehicle construction - sometimes reinforced with carbon or glass fibres. But PA is not easy to bond. High bond strengths of PA materials require the use of special pre-treatment methods or specially developed, reactive adhesives. Further information.
The cold-crosslinking HTV silicone rubbers are plastically deformable materials which are used, for example, as cable sheathing, for electrical insulation or for sealing and damping purposes.
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Rubber or rubber-like materials are widely used in industry and everyday life: for example in seals and rollers, in vibration dampers or for footwear. In general, a whole range of different types of adhesives are suitable for bonding rubber. However, the optimum adhesive always depends heavily on the rubber compound and the intended use. Further information.
Specifically designed to bond Plasticised PVC sheeting and rubberised materials, Suitable for bonding all plastics. Glass Clear UHB Acrylic Tape Specialist car glues, putty and sealants are hard-wearing products that are built for a life on the road. They’re also able to withstand the weather. We have specialist car tapes too that will help you to carry out rapid repairs and detailed restorations or touch-ups. If you need cable ties, we’ve got those too for those urgent fixes (and for tying up cables too). Acrylic foam tapes, whose adaptable acrylic foam absorbs tension, dampen vibrations and compensate for different, material-dependent temperature expansions. These are suitable for metal/plastic bonding and are used in automotive applications, for example, for bonding decorative and side protection strips, plastic cladding, reflectors and mirror glass. POM - Polyoxymethylene is one of the most frequently used engineering plastics due to its excellent sliding and wear behaviour. With its outstanding mechanical properties, POM bridges the gap to the more expensive metallic materials, often replaces them and is therefore one of the preferred construction materials, e.g. for precision mechanical parts. Normally, bonding is only possible after surface pre-treatment by flame treatment, etching with primer, corona or low-pressure plasma. Modern, high-performance adhesives, however, can do without this. Further information.
With this information, the adhesive and surface treatment can be selected based on technical data sheets, experience and the literature. If it is important, adhesive samples should be made and tested before the adhesives are used. In mechanical testing, the bonded joint is loaded until it breaks. The type of fracture provides information about the quality of the bond and indicates where defects occurred during bonding. An adhesion fracture is when the adhesive detaches from the joined part. A cohesion fracture is a fracture in the adhesive itself and a fracture in the part to be joined describes a fracture outside the adhesive surface in the part to be joined. Mechanical pretreatment by brushing, grinding, sanding or sandblasting - this changes the roughness and the size of the surface area effective for the bond. At the same time, loosely adhering reaction products, polishing and sliding agents and stabilisers are removed. Physical surface treatment processes use high-energy electron, laser or UV radiation in this process or thermal processes such as flame treatment or electrical plasma or corona processes. They change the surface chemically and physically. When flaming plastics, an open flame is guided over the surface of the part to be joined at a defined distance and speed. The flame can be used in a reducing or oxidising manner, depending on the type of plastic to be flamed. This makes the component surface more energetic and easier to bond. By adding chemically reactive substances, the surface can be influenced even further. Plastic components are often fixed with the aid of adhesives to prevent them from slipping during further process handling. Acrylate-based adhesives in particular usually adhere very well to many plastics. They have a strengthening and supporting effect for load transfer and stress reduction. Acrylic adhesives, which are also used for permanent bonding, are characterised by short processing times and high strength to many plastics and elastomers. These adhesives achieve, for example, as 2-component adhesives on low-energy plastics such as PC, PMMA, PVC etc., good shear and peel strengths as well as good impact strength under dynamic loads. From the 3M Scotch-Weld series, even acrylic adhesives have been developed in the meantime, which provide good results on difficult to bond plastics with low surface energy without any surface preparation or primer.
Adhesive Tapes are used in many sectors of industry on account of their excellent performance. They offer the unique advantage of economical, fast and clean processing compared with other mounting systems – both manual and automated. To ensure that the performance potential of our adhesive tapes is fully utilised, please follow the processing instructions listed below: VHB™ Tape permanently adheres one substrate to another and spreads the stress load across the entire length of the joint
Designed for use with medium and high surface energy materials like metals, polyimides and polycarbonate Offering a cleaner application than liquid adhesives, 3M™ Structural Adhesive Tape SAT1010is a single layer epoxy based adhesive tape for the Automotive industry (BIW), formulated for metal bonding applications. This tape is designed to provide structural bonding strength for various applications, specifically for bonding and isolation of dissimilar materials. In addition to bonding performance, the tape features gap filling properties due to its expansion features.
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