Paint and Coating Types Flashcards
7 cards from real C33 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Paint and Coating Types flashcards as text
Which coating type is best suited for concrete floors subject to heavy foot traffic and chemical spills?
Answer: Epoxy coating
Epoxy coatings bond tenaciously to concrete and provide exceptional abrasion and chemical resistance, making them ideal for industrial and commercial floors.
A 'high-build' coating is distinguished primarily by its ability to:
Answer: Apply in thicker films per coat to fill surface imperfections
High-build coatings are formulated with higher solids content to allow application of thicker dry film thickness per coat, reducing the number of coats needed.
Intumescent paint is used primarily to:
Answer: Expand when exposed to heat to protect structural substrates from fire
Intumescent coatings swell dramatically when exposed to high heat, forming a thick charred foam layer that insulates the substrate and delays structural failure.
Which finish sheen level is typically recommended for trim, doors, and cabinets in residential interiors?
Answer: Semi-gloss or gloss
Semi-gloss and gloss finishes are durable, easy to clean, and highlight architectural details, making them the standard choice for trim, doors, and cabinetry.
What is the primary purpose of a bonding primer when repainting a glossy surface?
Answer: To create a mechanical or chemical bond that allows topcoats to adhere to slick surfaces
Bonding primers contain adhesion-promoting resins that grip smooth, low-porosity surfaces so subsequent topcoats do not peel or delaminate.
A contractor selects a moisture-cure urethane coating. This product cures by reacting with:
Answer: Atmospheric humidity (water vapor)
Moisture-cure urethanes react with water vapor in the ambient air to crosslink, making them useful in cold or humid conditions where other coatings struggle.
Which coating is classified as a 'waterborne alkyd' and what is its main advantage over traditional oil-based alkyds?
Answer: It is thinned and cleaned up with water while retaining oil-based hardness and leveling
Waterborne alkyds use water as the carrier but cure to a hard, oil-like film, offering easier cleanup and lower VOC emissions compared to traditional solvent-borne alkyds.