How do you solid plaster a concrete wall? The tools used and the process.

To solid plaster a concrete wall in Auckland, you’ll need the following tools and materials:


  1. Tools:

– Trowels: A selection of trowels, including a float trowel, corner trowel, and finishing trowel, for applying and smoothing the plaster.

– Hawk or plastering board: A tool used to hold and transport the plaster as you work.

– Jointing or pointing trowel: Used for detailed work, such as creating clean edges and corners.

– Plasterer’s brush: Used for wetting the wall and cleaning the tools.

– Straightedge or spirit level: To ensure the evenness and straightness of the plastered surface.

– Mixing equipment: A mixing bucket or trough, and a drill with a paddle mixer attachment for preparing the plaster mix.

– Safety equipment: Gloves, safety glasses, and a dust mask to protect yourself during the plastering process.


  1. Materials:

– Plaster mix: A cement-based plaster mix suitable for solid plastering. It may include cement, sand, and additives. Brands like Firth, Allied Concrete, or Rockcote offer plaster mixes commonly used in Auckland.

– Bonding agent or primer: A bonding agent or primer is applied to the concrete wall before plastering to improve adhesion between the plaster and the substrate.

– Water: For mixing the plaster and wetting the wall.

– Optional additives: Depending on specific requirements, additives such as plasticizers or water repellents may be included in the mix.


Here’s a general overview of the process:

  1. Prepare the wall: Clean the concrete wall thoroughly, removing any dust, dirt, or loose particles. Apply a bonding agent or primer to enhance adhesion between the wall and the plaster.
  1. Mix the plaster: Follow the manufacturer’s instructions to mix the plaster to the desired consistency. Use the mixing equipment to achieve a smooth and lump-free mixture.
  1. Apply the plaster: Start by “keying” or scratching the surface of the wall with a scratching tool to provide a better grip for the plaster. Apply the plaster mix to the wall using a trowel, working in sections. Spread the plaster evenly and at the desired thickness.
  1. Level and smooth: Use a straightedge or spirit level to ensure the surface is even and level. Smooth the plaster with a float trowel, removing any excess material and achieving a uniform texture.
  1. Finishing touches: Use a trowel or jointing tool to create clean edges, corners, and any desired decorative features.
  1. Curing and drying: Allow the plaster to cure and dry according to the manufacturer’s instructions. Protect the newly plastered wall from excessive moisture and ensure proper ventilation for drying.

Local brands commonly used by experts in Auckland include Rockcote, Resene Construction Systems, and Plaster Systems. These brands offer a range of plastering products suitable for solid plastering applications in the local climate and conditions.

It’s important to note that solid plastering can be a skilled trade, and it may be best to consult our professional plasterers at or construction experts in Auckland for guidance and assistance, especially if you’re undertaking a larger or more complex project.