What Is Dot and Dab?

Dot and dab (also called direct bonding or dry lining adhesive fixing) is a method of attaching plasterboard directly to masonry walls using dabs of adhesive, without the need for a timber or metal stud framework.

How It Works

Blobs (dabs) of gypsum-based adhesive — typically Gyproc Dri-Wall Adhesive or equivalent — are applied to the wall in a regular pattern. The plasterboard is then pressed firmly onto the dabs, plumbed and levelled, and held until the adhesive sets. The result is a plasterboard surface ready for skim coating or jointing.

When to Use Dot and Dab

• Lining masonry walls (brick, block, concrete) where the surface is reasonably flat (within 10 mm variance)
• New-build internal walls where blocks need a finished surface
• Over-boarding existing plaster that is in poor condition
• Quick and cost-effective alternative to traditional wet plastering

Advantages

• Faster than traditional two-coat wet plastering
• No drying time for undercoat plaster
• Creates a flat surface even on slightly uneven walls
• Insulated plasterboard (thermal laminate) can be dot-and-dabbed for added insulation

Disadvantages

• Creates a void behind the plasterboard which can harbour pests or affect fire performance
• Difficult to fix heavy items to the wall — you need to find the dabs or use specialist fixings
• Not suitable for very uneven walls (use mechanical fixing or batten out instead)
• Reduces room size slightly (typically 15–25 mm depending on adhesive thickness)