Dispersion adhesives use a dispersed formula. This means that the adhesive will be applied in a mixture of water and a carrier solution. Water based dispersion adhesives have been used for many years, they still have a lot of good uses and the disadvantage of them is that they need to dry quickly, so drying times can be important if a large amount of adhesive is required to be used in a short space of time. Another disadvantage of water-based products is that some solutions can be damaging to rubber and plastics.
The best type of dispersion adhesives available are water-based versions and they have some advantages over other types. Water-based dispersion adhesives will evaporate at room temperature into a gas, which can adhere to most substrates, including metal and plastic. When the solution dries, it will usually release the bonds that have been formed. This method can also work well if they want to use very thinners. Generally, there are three common types of dispersion adhesives used when fitting pieces of wood together. Hardening dispersion glues are useful for things such as reinforcing wooden floorboards (and the same goes for PVC panels too), although it does have its drawbacks.
One of the most common uses of dispersion adhesives is to join pieces of wood together, often with an intention of using them on an immediate basis. One can create a variety of jointing applications by using different adhesives, depending on the nature of the piece to be joined. The most commonly used joints are nailing and screw joining, although one can also use them to joint acrylic and fiberglass. These types of applications mean that one can join thin sheets of aluminum or plastic with no difficulty, as they have excellent adhering properties. Recently, in January 2021, Allnex launched DAOTAN 7061/35WA, a polyurethane dispersion adhesive developed for automotive OEM.
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