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. Thin bonding lets your design shine without bulky fasteners by using a virtually invisible industrial-strength bond to attach materials. Using a tape rather than a liquid adhesive allows you to customize the tape to the precise shape you need for the final design, as well as giving you production flexibility by leaving the liner in place until the second substrate is ready. Double coated or adhesive transfer tapes provide shear strength, conformability and high initial adhesion and have industrial applications in electronics, auto interiors, signage and graphics, sporting equipment and much more. 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. 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.

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. 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: 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. Specifically designed to bond Plasticised PVC sheeting and rubberised materials, Suitable for bonding all plastics. Glass Clear UHB Acrylic Tape

Cleaning and degreasing the plastic surface of loosely adhering dust, oil, grease and separating and processing agents with water or solvents - this does not change the structure of the surface. Cleaning can be carried out by immersion or spraying. Degreasing is done with organic solvents or by pre-drying in the oven.

It has unparralelled long term and short term strength and boasts brilliant resistance to humidity, solvents , plasticisers and UV, salt water and alkalines. This tape withstands the test of time and weathering! 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 But structural damage to the new CFRP aircraft can now also be repaired by bonding: Lufthansa Technik has developed a new type of repair method here as part of the "Rapid Repair" research project: A milling robot cleanly mills out the damaged area (on a wing, for example) and a precisely fitting repair part is inserted with an adhesive film. Under vacuum and using a heating mat, the repair patch hardens and can be repainted. Afterwards there will be no more visible signs of the repair. Advantage: No holes need to be drilled which could destroy the sensitive fibre structure.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). Recommended Applications: Decorative material and trim, Nameplates and logos, Electronic displays, Panel to frame, Stiffener to panel 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. Our tape offering includes reflective tapes, silicone tape, standard masking tapes, and heavy duty masking tapes that are more resistant to weight and weather. Epoxy glues Silicones - chemically more precisely known as poly(organo)siloxanes or siloxane - are synthetic polymers whose silicon atoms are connected via oxygen atoms (Si-O-Si). They occupy an intermediate position between organic and inorganic compounds. At present well over 10,000 different types of silicone are known. Silicone rubbers are differentiated according to the temperature required for cross-linking.

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.There is very convincing evidence that Heavy duty bonding tape in fact rivals the tried and tested method of riveting and conveys the following benefits: When selecting an adhesive, one should consider what the bond must be able to withstand and what stresses the component will be exposed to in use. These are the questions about mechanical, dynamic and static loads, the temperature range, the influence of moisture, other chemical substances or UV radiation. At the same time, the list of requirements should include information on the parts to be joined, the production conditions, specifications for occupational safety and environmental protection, information on long-term resistance and quality assurance, as well as the selected test procedures and costs. VHB™ Tape permanently adheres one substrate to another and spreads the stress load across the entire length of the joint