DIY Network

How to add Plaster to a Fireplace Wall

A treatment of limestone-tinted plaster and acrylic flat wax creates a smooth, contemporary, architectural element making the fireplace the focal point of the room.

More in Painting

  • Time


  • Price Range

    $50 - $100

  • Difficulty

    Easy to Moderate


Step 1: Tape off the Fireplace

Tape the edges of the fireplace.

Step 2: Fill the Mortor Lines with Adhesive

Using trowels, fill mortar lines with AcrylPro Ceramic Tile Adhesive, feathering out the edges and blending to to blend smoothly with the surface.

Before the surface dries, use damp sponges to smooth it further. Let dry.

Step 3: Trowel on the Plaster

Trowel on a thin coat of Marmarino plaster to cover the entire surface.

As the plaster begins to set, smooth and polish the surface (burnish) with the flat side of the trowel. Let dry.

Step 4: Trowel on the Tinted Wax

Mix Cal-Tint II Universal tinting colorants burnt umber into SAFS Acrylic Flat Wax and trowel a thin coat. Let dry.

Burnish with trowel again to soften the sheen for a finished look.