Metal to metal bonding adhesives have become increasingly important across numerous industries. They are now a critical part of many processes. Most metal to metal adhesives are made from polymers. Four different types are outlined below.
Epoxy adhesives
Epoxy adhesives consist of two components: a resin and a hardener. These are mixed together in order to cure. They are able to create bonds that are exceptionally strong, durable, versatile, and able to withstand extreme temperatures and high stress.
Epoxy adhesives are able to bond a wide range of metals including aluminium, steel, copper, iron, brass, and more. They can bond both similar and dissimilar metals.
Epoxy adhesives are able to cure in various environmental conditions and temperatures. Curing speeds can range from five minutes to 24hours.
Some example applications include bonding metal automotive parts, joining aerospace components, and bonding metal brackets.
Acrylic adhesives
Acrylic adhesives are a popular choice for metal to metal bonding. They are able to form strong bonds to a variety of metals, and are known for their short curing time. They are available in a range of different curing options.
Applications include sign-making, automotive/aerospace manufacturing, sporting goods production, and magnet bonding.
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Polyurethane adhesives
Polyurethane adhesives offer both flexibility and impressive bonding characteristics. They are resistant to UV light and moisture, non-flammable, offer shock absorbing qualities, and are effective for bonding metals including steel, copper, and aluminium. They can provide high-strength, durable bonds which can enhance structural stability.
Applications include joining automotive components and bonding construction materials.
Silicone adhesives
These adhesives are known for their thermal stability, flexibility, and impressive resistance to weathering and high temperatures. They also offer excellent electrical insulation and durability.
Silicone adhesives are used on electronic circuit boards, to join automotive components, on medical devices, and on kitchenware and other consumer goods.