There are currently 29 names in this directory beginning with the letter A.
A
Abrasion resistance
Resistance to a form of wear in which a gradual removal of a flooring surface is caused by the frictional action of relatively fine particles. Abrasion resistance generally depends on the toughness of the product or wear-layer, thickness of wear-layer and existence of surface coatings.
Abrasive blast cleaning
Preparation of substrate to achieve the desired surface profile by means of impingement of kinetic energy streams of abrasives. Grit, sand, copper slag or wet blasting is employed.
Accelerator
An ingredient added to a resin-hardening mixture to speed up the reaction. Also see Curing Agent.
Acid etch
Refers to the use of a mixture of muriatic acid and water on concrete either to neutralize the surface, if it shows signs of alkali or to open the surface to allow a good bond with floor coatings. This can actually cause problems in bonding due to acid residue.
Adhesion
The state in which two surfaces are held together by interfacial forces which may consist of valence forces or interlocking action, or both.
Adhesion promoter
Materials used to improve a coating or adhesive’s ability to withstand mechanical separation from a substrate; to improve a system’s adhesive strength.
Adsorption
The adhesion in an extremely thin layer, of the molecules of gases of dissolved substances or liquids, to the surface of solid bodies with which they are in contact.
Aggregate
A hard fragmented material used with an epoxy binder as flooring or surfacing medium. A coarse filler.
Air-entrained concrete
Concrete containing tiny air bubbles formed by adding soap-like resinous or fatty materials to the cement or to the concrete when mixed. Bubbles give the water in the concrete enough room to expand as it freezes.
Amide
A curing agent used with epoxy resins, containing the –(C=0)–NH2 group in its molecular formula. Most amides are semi-solids or solids at room temperature and they are practically neutral. They are derived from a hydrogen replacement reaction between an organic acid and ammonia (NH3).
Anti skinning agent
A chemical added in small quantities in the liquid paint to prevent the formation of skin at the top of the liquid during storage.
Antifouling paint
A coating applied to the bottom of the ships to prevent the growth of barnacles or other marine organisms.
Artificial weathering
Lab tests designed to stimulate the effects of the destructive action of natural out door weather on coated film.