In this article we explain how to skim coat a drywall surface with ready-to-use compound. According to Eurogypsum’s* classification this is the fourth and final level of surface finishing – also called Q4**.

Here are the steps we followed:

It is mandatory that the previous layer - level Q2 is finished and dry (takes no more than 24 hours) and all joints are smoothed and filled.

The first and very important step is to pre-mix the ready to use compound FUGA & FINISH with a mechanical stirrer at a low speed, after opening the package. If necessary, the compound can be diluted in portions with 200 ml of water per 20 kg of product, to the desired consistency for application.

After prepping the ready-to -use mixture we proceed to hand plastering with a drywall trowel. We apply a thick layer (up to 3 mm) of the mixture over the entire surface of the wall. Finally, we smooth the whole surface making sure no joints are left unfilled and transparent.

After the wall is completely dry, all imperfections must be smoothed with fine sandpaper. Using LED floodlight will help you spot them easily.

*Eurogypsum – European federation of the gypsum product manufacturing industry. Developed and established, the 4 levels of quality finish classification for plasterboard cladding aims to provide clear definitions thus helping to reduce subjective judging of the end result.

**Level Q4 responds to the highest demands of quality of the finished surface.

Level Q4 includes:

• Completely finished level Q2, filled and finished joints between wallboards, well covered visible parts of the fixings, well defined inner and outer edges and corners.

•  Fine plastering to achieve continuous transition between the boards, including fine sanding of the area.

Level Q4 is a suitable level of completion for:

• Walls that need to meet the requirements for superior surface quality
• Walls that will be treated with glossy paints and coatings
• Premises with shallow and bright lighting conditions.