Before applying finish, which method should be used to clean wood surfaces?

• A. Oil brushing
• B. Steel wool pad
• C. a tack rag
• D. Water and soap

Answer: (C)

Before applying a finish, the surface needs to be free of fine dust and fibers so the coating can bond evenly. A tack rag is ideal for this step because its slightly sticky texture grabs and holds the fine sanding dust without leaving any residue that could interfere with adhesion or appearance. Moisture from water and soap can raise the grain and slow drying, steel wool can shed fibers or leave metal particles, and oil left from oil brushing can create an uneven surface or prevent adhesion. Using a tack rag between sanding and finishing helps ensure a clean, texturally uniform surface for a smooth, even finish.