Painting and Coating Flashcards
6 cards from real Other Skilled Trades practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Painting and Coating flashcards as text
Which personal protective equipment (PPE) is required when spray painting in an enclosed space?
Answer: Supplied-air respirator or NIOSH-approved organic vapor respirator, gloves, and eye protection
Spray painting in enclosed spaces creates high concentrations of solvent vapors and paint mist requiring respiratory protection, gloves, and eye protection per OSHA standards.
What does 'spreading rate' mean on a paint product data sheet?
Answer: The area covered per gallon at the recommended dry film thickness
Spreading rate (theoretical coverage) is the area a gallon of paint will cover at the specified dry film thickness, typically expressed in square feet per gallon.
What type of surface preparation is required before applying paint to galvanized metal?
Answer: Clean with solvent, then apply a zinc-compatible primer or etching primer
Galvanized metal has a zinc coating that resists adhesion; it requires solvent cleaning and a zinc-compatible primer or etching primer for proper paint adhesion.
What is 'sagging' or 'running' in a paint film?
Answer: Downward movement of paint on a vertical surface due to over-application
Sagging occurs when too much paint is applied to a vertical surface and gravity causes the wet film to run downward before it can set, leaving drips and curtain-like marks.
What OSHA standard governs the handling and storage of flammable and combustible liquids, including paint solvents, on construction sites?
Answer: OSHA 29 CFR 1926.152
OSHA 29 CFR 1926.152 is the specific standard covering flammable and combustible liquids in construction, governing storage, handling, and use of paint solvents and similar materials.
What is the purpose of a 'tie coat' or 'mist coat' when applying a second coat of some two-part epoxy systems?
Answer: To provide adhesion between a cured first coat and the second coat when the recoat window has passed
A tie coat is applied over a fully cured two-part epoxy to chemically re-open the surface and provide a bonding layer when the manufacturer's recoat window has been exceeded.