Plaster And Paint Finishes

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Grading System Level 4

All walls will be plastered and painted to Level 4 finish unless specified otherwise.

https://www.gib.co.nz/homeowners/achieving-a-quality-fi

nish/

1) In critical lighting conditions, surface imperfections may still be apparent in a Level 4 surface finish
2) Where gloss, semi-gloss or deep tone paints are used, surface imperfections will be more evident.

Location Ceiling Window reveals/frames, door frames & skirtings Interior doors Walls (expand if different throughout) Garage walls

 

The Finishing Process

The process of installing plasterboard involves a number of steps and tradespeople.

To create a quality finish all trades will deliver a professional job at each step in order that the next step can be effectively completed. Fixing plasterboard should be fixed horizontally where possible using GIBFix adhesive plus Grabber screws.

 

Basecoat and Taping (Stopping)

The joint is first covered with a basecoat compound with paper tape embedded in the compound to strengthen the joint. A second layer of compound is added later to fill the tapered joint void.

 

Topcoat compound

A final topcoat compound finishes the jointing process to deliver a smooth sandable surface

 

Sanding & Painting

The final part of the process, once the compound is fully set and dried, is to sand back the surface to a smooth finish. The wall or ceiling surface is then ready for painting or wallpapering.

 

Facts about Jointing Prior to the application of the paint or wallpaper, joint compounds must be allowed to adequately ‘cure’ in order to prevent shrinkage and to deliver the required performance in adhesion and joint strength. There are three variables that affect the speed of ‘cure’ • Air temperature • Relative air humidity • Movement of air On a still cold wet day (10oC/90% humidity) there will be minimal drying of these compounds. In comparison on a windy hot dry day (25oC/50% humidity) the air will have 12 times the capacity to carry water and will be substantially more effective in the ‘curing’ process. A temperature of not less than 10oC is required to ensure that the resins in the compounds cure and to support the evaporation of water.

 

Article and image extracted from – GIB-Interior-Finish-Brochure, 2021