What type of gypsum board is recommended for use as a base for an interior veneer plaster finish?

What type of gypsum board is recommended for use as a base for an interior veneer plaster finish?

• A. Water resistant board
• B. Duralock
• C. Blue board
• D. Regular base

Answer: (C)

Blue board is the gypsum board designed specifically to receive interior veneer plaster. Its surface and gypsum core are made to provide a strong key for plaster, allowing the plaster to bond well and cure with minimal cracking, which yields a smooth, durable veneer finish. Other boards, like water-resistant ones, are aimed at damp areas and don’t offer the same plaster bonding characteristics, and regular drywall isn’t optimized for veneer plaster applications. So blue board is the best choice for this finish.

Blue board is the gypsum board designed specifically to receive interior veneer plaster. Its surface and gypsum core are made to provide a strong key for plaster, allowing the plaster to bond well and cure with minimal cracking, which yields a smooth, durable veneer finish. Other boards, like water-resistant ones, are aimed at damp areas and don’t offer the same plaster bonding characteristics, and regular drywall isn’t optimized for veneer plaster applications. So blue board is the best choice for this finish.