Metalliliimoilla

Metalliliimoilla is a Finnish term that translates to "with metal glues" or "using metal adhesives." It refers to the use of specialized adhesives designed to bond metal to metal or metal to other materials. These adhesives are formulated to withstand the unique properties of metals, such as their density, thermal expansion, and surface characteristics.

The development of metal glues has been driven by the need for stronger, lighter, and more efficient joining methods compared to traditional mechanical fasteners like rivets, bolts, and welding. Metal adhesives offer several advantages, including the distribution of stress over a larger area, which can prevent stress concentrations. They can also provide a seal against corrosion and vibration, and they allow for the joining of dissimilar metals or metals to non-metallic materials, which might be difficult or impossible with other methods.

Different types of metal glues exist, each suited for specific applications. Epoxy adhesives are very common and offer excellent strength and durability. Cyanoacrylates, often known as super glues, can provide rapid bonding for smaller metal parts. Structural acrylics and polyurethane adhesives are also used for demanding applications requiring high flexibility or impact resistance. Surface preparation is crucial for successful metal bonding, often involving cleaning, degreasing, and sometimes roughening or chemical etching of the metal surfaces to ensure optimal adhesion. Applications for metal glues span across industries such as automotive, aerospace, construction, and electronics.