Definition: Adhesion refers to a physical or chemical link between two surfaces that holds them together. Adhesive bonds form when one material adheres to another by being pulled or held in place with the help of other molecules or substances. These substances are known as the adhesive molecules. The word 'adhesively' means something is binding or holding something together. It refers to a strong and stable bond, often between two materials that work well together and withstand pressure or impact. Adhesion can be classified into various types based on its strength and how it binds the substances involved: 1.

Sticky Bond

: When two surfaces are held together by an invisible adhesive material like glue, it is known as sticky bonding. 2.

Slippery Bond

: A solid substance that sticks to other objects when rubbed or pressed can be described as slippery. 3.

Lubricating Bond

: This type of bond is used to lubricate moving parts and supports friction between them without any visible contact. 4.

Sealing Bond

: It involves the sealing off spaces where materials do not want to come in contact with each other, such as when a sealant or glue is used for sealing. Understanding these terms will help you better comprehend how adhesives work and their significance in various industries like construction, automotive, manufacturing, and more.

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