yachtpaint.com Glossary of Terms - A

Alphabetical index of marine painting terms used in the construction, maintenance and repair of boats.



Abrasion resistance
Resistance to mechanical wear


Abrasive
The agent used for abrasive blast cleaning, for example sand or grit


Absorption
Process of soaking up, or assimilation of one substance by another


Accelerator
Catalyst, hardener, accelerator, curing agent, reactor; a material which accelerates a reaction


Acid Number
A numerical index of free acid in an oil or resin


Activator
Catalyst, hardener, accelerator, curing agent, reactor; a material which reacts with another material to turn aliquid coating to a solid coating.


Adhesion
Bonding strength ; the attraction of a coating to the substrate


Adsorption
Process of attraction to a surface; the retention of foreign molecules on the surface of a substrate


Air cap
Air nozzle ; perforated housing for atomizing air at head of spray gun


Air drying
Dries by oxidation or evaporative drying by simple exposure


Air entrapment
Inclusion of air bubbles in paint film


Airless spraying
Spraying without atomizing air, using hydraulic pressure


Alkyd
Resins prepared by reacting alcohols and acids


Alligatoring
Surface imperfections of paint having the appearance of alligator hide


Ambient temperature
Room temperature or temperature of surroundings


Amine sweat
A thin sticky film which forms on the surface of a epoxy coat caused by inadequate curing temperatures and/or high humidity


Anchor pattern
Profile, surface roughness


Antifouling
Bottom paint ; Paints formulated especially for below-water-line surfaces and structures to prevent the growth of barnacles and other organisms on ships' bottoms