CR–34 Licensing Practice Questions With Appropriate
Solutions
What are the 4 basic paint components? Correct Answer - Resin,
Additives, Pigments, & Solvents (RAPS)
What do Resins do? Correct Answer - Binds molecules throughout the
substrate and surface, making them solid
What are the types of Resins? Correct Answer - Synthetic & Natural
(Copal, Lac, Rosin)
What are the 8 types of Additives? Correct Answer - Anti-Skinning
Agents, Driers, Emulsion Aids, Fungicides, Plasticizers, Thixotropies, UV
Absorbers
What do Additives do? Correct Answer - Add the extra "umph" to paint
(ex: dry faster, settle smoother, etc.)
What do Emulsion Additives do? Correct Answer - Controls viscosity
through surface tension reduction
What are the 6 types of Pigments? Correct Answer - Hiding, Barrier,
Inhibitor, Extender, Color, & Sacrificial
What 5 things do pigments provide? Correct Answer - Color, Corrosion
Resistance, Durability, Hardness, & Opacity
What are heavily pigmented materials used for? Correct Answer -
Concrete Masonry Substrate
What do Solvents do? Correct Answer - Controls consistency, application
properties, and finish
What are the 6 types of Solvents? Correct Answer - Alcohols, Ester
(acetates), Hydrocarbon, Glycol Ethers, Ketones, Turpentines
, How do you obtain Turpentine? Correct Answer - By tapping pine trees,
considered a Gum Spirit
How long should Galvanized Metal weather before being painted? Correct
Answer - 6 Months
How long should new plaster dry before being painted? Correct Answer -
30 Days
How long should new concrete cure before coating? Correct Answer - 28
Days
When preparing Steel, what acid is used? Correct Answer - Phosphate &
Chromate
How should concrete be prepared for painting? Correct Answer - Acid
Etching
When etching concrete, Hydrochloric Acid needs to be diluted to what
percentage? Correct Answer - 5-10%
When etching concrete, Phosphoric Acid needs to be diluted to what
percentage? Correct Answer - 10-15%
When etching concrete, Citric Acid needs to be diluted to what percentage?
Correct Answer - 20-25%
What method was developed to test the moisture in new concrete? Correct
Answer - ASTM D-4263
What is Efflorescence? Correct Answer - A white powdery residue from
moisture, in concrete, evaporating
What is Laitance? Correct Answer - A defect that creates a weak/brittle
layer of concrete, that was over wet or overworked
What is crocking resistance? Correct Answer - The ability to resist
transferring color from one wall to another when rubbed
Solutions
What are the 4 basic paint components? Correct Answer - Resin,
Additives, Pigments, & Solvents (RAPS)
What do Resins do? Correct Answer - Binds molecules throughout the
substrate and surface, making them solid
What are the types of Resins? Correct Answer - Synthetic & Natural
(Copal, Lac, Rosin)
What are the 8 types of Additives? Correct Answer - Anti-Skinning
Agents, Driers, Emulsion Aids, Fungicides, Plasticizers, Thixotropies, UV
Absorbers
What do Additives do? Correct Answer - Add the extra "umph" to paint
(ex: dry faster, settle smoother, etc.)
What do Emulsion Additives do? Correct Answer - Controls viscosity
through surface tension reduction
What are the 6 types of Pigments? Correct Answer - Hiding, Barrier,
Inhibitor, Extender, Color, & Sacrificial
What 5 things do pigments provide? Correct Answer - Color, Corrosion
Resistance, Durability, Hardness, & Opacity
What are heavily pigmented materials used for? Correct Answer -
Concrete Masonry Substrate
What do Solvents do? Correct Answer - Controls consistency, application
properties, and finish
What are the 6 types of Solvents? Correct Answer - Alcohols, Ester
(acetates), Hydrocarbon, Glycol Ethers, Ketones, Turpentines
, How do you obtain Turpentine? Correct Answer - By tapping pine trees,
considered a Gum Spirit
How long should Galvanized Metal weather before being painted? Correct
Answer - 6 Months
How long should new plaster dry before being painted? Correct Answer -
30 Days
How long should new concrete cure before coating? Correct Answer - 28
Days
When preparing Steel, what acid is used? Correct Answer - Phosphate &
Chromate
How should concrete be prepared for painting? Correct Answer - Acid
Etching
When etching concrete, Hydrochloric Acid needs to be diluted to what
percentage? Correct Answer - 5-10%
When etching concrete, Phosphoric Acid needs to be diluted to what
percentage? Correct Answer - 10-15%
When etching concrete, Citric Acid needs to be diluted to what percentage?
Correct Answer - 20-25%
What method was developed to test the moisture in new concrete? Correct
Answer - ASTM D-4263
What is Efflorescence? Correct Answer - A white powdery residue from
moisture, in concrete, evaporating
What is Laitance? Correct Answer - A defect that creates a weak/brittle
layer of concrete, that was over wet or overworked
What is crocking resistance? Correct Answer - The ability to resist
transferring color from one wall to another when rubbed
