Koster Restoration Plaster System

Application can be carried out to damp walls (Internally / Externally) or over a Type A internal basement waterproofing system such as Koster NB1 Grey. Application tools required are traditional plastering tools such as trowels, levels and straight edges.

A typical application to a bare and damp wall would involve the following work steps:

Preparation:

• Ensure the substrate is clean and free of bond inhibiting items such as paint, plaster, dirts, etc. Loose masonry should be repaired prior to application.
• If a DPC is required, Koster Crisin Cream or Koster Crisin Concentrate should be used.
• Priming with Koster Polysil TG 500 optimally prepares the masonry for the application of KÖSTER Restoration Plaster. It hardens the substrate as well as reduces the mobility of salts.

Application:

• Before the application of the main plaster coat, a "plaster key" made from the chosen Koster Restoration Plaster is mixed with Koster SB-Bonding Emulsion is applied to provide a larger surface area and to ensure an optimal bond to the substrate.
• After this plaster key has received a short cure, Koster Restoration Plaster (Grey or White) can be troweled onto the wall and smoothened to suit the clients wishes.

Finishing:

• Although Koster Restoration Plaster is often used in older buildings without subsequent painting, should a painted finish be desired there is a range of Koster silicon or mineral paints available.
• Koster Plaster Coat creates a very smooth surface and can be applied when desired to meet architectural needs.