This is a good question and the answer to this question lies in the bonding agents that we use on a day-to-day basis, such as, epoxy glue or other adhesives, rubber cement or other high-grade resins. These bonding agents allow us to join materials such as metal, plastics, wood and other objects into shape by creating a sort of chemical bond, which can hold two materials together until such time as they are able to be separated again. We use bonding agents in a wide variety of situations, ranging from joining the edges of boards to attaching pieces of furniture and much more. Metal bonding adhesives are widely available.
There are two common types of chemical bonding that people use on a day-to-day basis, and these are powder friction and paste friction. With a powder friction bonding, you apply the filler (sometimes called the “particle”) to the part that you wish to join and then you apply the mating liquid to the part and the entire process will create a bond. The liquid, in most cases, is oil based.
The other popular method of joining pieces of materials together is through the use of a paste or a liquid combination. In this case, you mix together ingredients such as glue, cement, sand, and other things that will create a liquid paste, which is then applied to the joints that you wish to join together. These processes are used in many manufacturing situations, and they work well.