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PMMA - polymethyl methacrylate, also known as Plexiglas and acrylic glass, impresses with its optical and surface properties. In everyday life, corrugated sheets, for example for the roofing of garden arbours or pergolas, are often mistakenly offered as plexiglass. In reality, they are made of polycarbonate or PVC, which can make a big difference when bonding the material. The same applies to so-called hobby glass from the DIY store. For bonding on low-energy plastics such as PMMA, the surface energy is of central importance. However, caution is advised when using certain solvents for bonding preparation. Otherwise, there is a wide range of high-performance adhesives on the market for efficiently bonding PMMA to numerous other materials. Further information. 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. 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. 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.
The term sponge rubber is mainly used to describe open-cell and elastic foams that have a closed, leak-proof outer skin. These are expanded by adding blowing gases made of natural rubber, chloroprene, acrylonitrile-butadiene rubber or similar synthetic rubbers and are classified as porous rubbers. During vulcanisation, the blowing agent inflates the compound and gives the thermoplastic elastomer permanent elasticity. Sponge rubber is generally considered to have poor to hardly any adhesion. Depending on the second material, only individual, special adhesives are available that enable usable bonding. Adhesions of sponge rubber to certain plastics such as polyolefins (polyethylene, polypropylene) or rubber are particularly critical. Further information. 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.The flowable, red silicone rubber (RTB/HB) has a high heat resistance and low elasticity. They are used as mould construction material for casting moulds for low-melting metals where high hardness is required. 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). The tape is typically applied during the body in white process. It is run through the automotive paint pre treatment process and then the e coat process. The tape expands and cures in the e coat cure oven to fill and seal small gaps. The tape forms a continuous barrier between similar and dissimilar materials, which minimizes electrical conductivity and helps prevent galvanic interactions. 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. 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.
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. Any great mechanic knows that to get the best results, you need the best products. While you may have some old glue or tape in the cupboard or the toolbox, car glues, adhesives, tapes and sealants are created to high-standards, which mean they won’t damage or destroy the finish on your car.
Foams are quite common in everyday life: They are used in everything from upholstery and mattresses to insulation materials. They are based on a wide range of plastics as raw materials. However, not every adhesive is suitable for every material. In view of the wide range of variants, it can therefore be useful to always test how the adhesive behaves on small samples of the material beforehand. Further information. Short-term temperature tolerance up to 260 °C, with an operating temperature tolerance of up to 150 °C ABS - acrylonitrile-butadiene-styrene is an everyday plastic that is widely used today because of its surface hardness, high impact strength and good resistance to weathering, ageing and chemicals. Unfortunately, the low-energy ABS cannot be glued completely without problems with common adhesives and usually this is only possible after a surface treatment with the solvent methyl isobutyl ketone. However, ABS with ABS can also be bonded with methyl ethyl ketone (MEK) / butanone and dichloromethane (methylene chloride). Optimum procedure: Clean bonding surfaces, dry. Apply one coat of adhesive to one or both sides and allow to flash off briefly before pressing together. Further information.
Using this method it delivers a speedier application than mechanical fasteners, therefore replacing rivets, screws, bolts and spot welds. The heavy-duty bonding tape is viscoelastic in nature, giving foam stress relaxing and energy-absorbing properties – but what does this mean? Avoiding these forces causing failures over time, this happens with mechanical fixings, and leads to further maintenance and increased cost. If you already didn’t need an excuse to use this tape in your industry its durability is further increased by its resistance to solvents, moisture and UV, reducing wear unlike mechanical components, which can be easily corroded. UHB Bonding Tape Sizes 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. The highly elastic silicone rubber (RTV/HE) is a quite flowable silicone rubber with very high elasticity and at the same time low viscosity. It is particularly suitable for the production of filigree elastic forms with pronounced undercuts. Fields of application are relief casting moulds or moulds for strongly structured decorative panels or wall elements. Our high quality PVC banner hemming tape is used to reinforce the hems to outdoor display banners. Suitable for self piercing eyelets. Double Sided Correx Tape
Benefits
VHB™ Tape permanently adheres one substrate to another and spreads the stress load across the entire length of the joint
The transparent plastic SAN from the group of styrene-based plastics is often used as a material for greenhouse or industrial glazing as well as shower cabins because of its weather resistance, rigidity and scratch resistance. Depending on the requirements, a wide range of high-performance adhesives is suitable for material bonding. Further information.Double-sided acrylate foam adhesive tapes for a wide range of applications are available on the market. They're made of closed-cell acrylate adhesive for demanding material combinations or critical plastics with low surface energy such as PE or PP. These are able to absorb forces well and are therefore permanently resistant to tensile, shear, splitting and peeling forces. They're suitable, for example, for car mirror bonding or for the bonding of mouldings and decorative trim.
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