AMPP QUESTIONS AND ANSWERS
What is the binder (resin) in a coating - Answers - Liquids that adhere to the substrate
and chemically change to form a hard protective film it also binds all the components
together
What is a solvent (Thinner) - Answers - A liquid that dissolves or thins the binder,
making the coating easy to apply, then evaporates as it dries
What is a pigment - Answers - A solid that gives the coating its colour
What is a vehicle in coatings - Answers - The liquid portion of the coating that carries
the solids
What is a convertible coating - Answers - Coating that hardens by chemical reaction,
usually multi part
What is a non-convertible coating - Answers - Coating that hardens by physical change
like evaporation
What are the 4 reasons for coating? - Answers - Aesthetics, performance requirements,
safety identification and corrosion prevention and control
What is corrosion? - Answers - The deterioration of a metal or alloy that results from the
electrochemical reaction with it's environment
What are the four steps to corrosion? - Answers - 1. Metal needs to be present, 2. Form
electrochemical cell 3. Metal transforms into new compound 4. Metal degradation
What are the 4 parts of an electrochemical cell? - Answers - Anode (+), cathode (-),
metallic pathway and electrolyte
What does the metallic pathway do? - Answers - Allows electrode to go from anode to
cathode
What does the electrolyte do? - Answers - Allows ions to move between anode and
cathode
What is general corrosion? - Answers - A relatively uniform loss of material over the
entire surface and in general a thinning of affected area. Usually not catastrophic
What is the binder (resin) in a coating - Answers - Liquids that adhere to the substrate
and chemically change to form a hard protective film it also binds all the components
together
What is a solvent (Thinner) - Answers - A liquid that dissolves or thins the binder,
making the coating easy to apply, then evaporates as it dries
What is a pigment - Answers - A solid that gives the coating its colour
What is a vehicle in coatings - Answers - The liquid portion of the coating that carries
the solids
What is a convertible coating - Answers - Coating that hardens by chemical reaction,
usually multi part
What is a non-convertible coating - Answers - Coating that hardens by physical change
like evaporation
What are the 4 reasons for coating? - Answers - Aesthetics, performance requirements,
safety identification and corrosion prevention and control
What is corrosion? - Answers - The deterioration of a metal or alloy that results from the
electrochemical reaction with it's environment
What are the four steps to corrosion? - Answers - 1. Metal needs to be present, 2. Form
electrochemical cell 3. Metal transforms into new compound 4. Metal degradation
What are the 4 parts of an electrochemical cell? - Answers - Anode (+), cathode (-),
metallic pathway and electrolyte
What does the metallic pathway do? - Answers - Allows electrode to go from anode to
cathode
What does the electrolyte do? - Answers - Allows ions to move between anode and
cathode
What is general corrosion? - Answers - A relatively uniform loss of material over the
entire surface and in general a thinning of affected area. Usually not catastrophic
