A substance or a tape applied between two adjoining materials to prevent adhesion between them.

A material used to prevent new placed concrete from bonding to the floor slab or substrate

Thin layer of material used to prevent the sealant from bonding to the bottom of the joint.

A material that prevents adhesion of materials to a concrete substrate.

A substance to which the sealant will not stick.

A strip of material to which the cement does not adhere. See bond and form release agent.

A material used to prevent adhesion between two surfaces. Bond, running: The placement of masonry units such that head joints in successive courses are horizontally offset at least one-quarter the unit length. Centering head joints over the unit below, called center or half bond, is the most common form of running bond. A horizontal offset between head joints in successive courses of one-third and one-quarter the unit length is called third bond and quarter bond, respectively.