CSLB C-33 Painting & DecoratingSurface PreparationMedium

A painting contractor is preparing a residential interior for painting. The scope includes protecting existing hardwood floors, built-in cabinetry, and light fixtures from paint overspray and drips. Which protection method is generally considered the most professional and effective for hardwood floors?

  1. ALaying down old sheets or blankets.
  2. BSpreading canvas drop cloths over the entire floor area.
  3. CApplying self-adhesive plastic film designed for hard surfaces.
  4. DUsing rosin paper taped at the seams.
Show answer & explanation

Correct answer: C. Applying self-adhesive plastic film designed for hard surfaces.

Self-adhesive plastic film designed for hard surfaces offers superior protection for hardwood floors. It adheres securely, preventing slippage and paint from seeping underneath, and provides a continuous, impervious barrier. Rosin paper can allow liquids to seep through seams or if torn. Sheets/blankets offer minimal protection and can slip. Canvas drop cloths are good but can allow drips to soak through or slip, and don't provide a fully sealed barrier.

Why the other options are wrong

  • A. Old sheets or blankets offer minimal protection against spills and overspray, can easily slip, and are not impermeable.
  • B. Canvas drop cloths are reusable and durable but can allow paint to soak through if saturated, can slip, and do not provide a sealed barrier at seams.
  • D. Rosin paper is better than sheets but can tear, and liquids can seep through the seams or the paper itself if heavily saturated.

Hardwood Floor Protection

For painting, self-adhesive plastic film designed for hard surfaces offers the most professional and effective protection for hardwood floors due to its secure adhesion and impervious barrier.

  • Protection prevents damage and costly repairs.
  • Adhesive film prevents slippage and seepage.
  • Consider duration of job and traffic levels.

Memory trick: Hardwood's haven needs a sticky shield, not just a fabric field.

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