What is required before applying a granular compound on a surface?

What is required before applying a granular compound on a surface?

• A. The surface must be clean, straight, and properly masked.
• B. The surface must be dampened with water.
• C. The surface must be sanded after applying the compound.
• D. The surface color must match.

Answer: (A)

Preparing the surface properly is essential before applying a granular compound. It should be clean to remove dust, oils, and contaminants that could prevent good bonding. It must be straight so the compound can lay evenly and avoid high spots or gaps, and it should be properly masked to protect adjacent areas and create clean edges. Dampening with water isn’t a universal requirement and can interfere with adhesion, while sanding after applying or matching surface color aren’t pre‑application requirements. So the best practice is that the surface must be clean, straight, and properly masked.

Preparing the surface properly is essential before applying a granular compound. It should be clean to remove dust, oils, and contaminants that could prevent good bonding. It must be straight so the compound can lay evenly and avoid high spots or gaps, and it should be properly masked to protect adjacent areas and create clean edges. Dampening with water isn’t a universal requirement and can interfere with adhesion, while sanding after applying or matching surface color aren’t pre‑application requirements. So the best practice is that the surface must be clean, straight, and properly masked.