What is COVERWELL Primer Surfacer G5 and How Do You Get the Best from It?
- NOVEX
- 1 day ago
- 2 min read

COVERWELL Primer Surfacer G5
If you’re aiming for a really smooth, professional-looking paint finish indoors, the primer you use makes a big difference. That’s where NOVEX COVERWELL Primer Surfacer G5 comes in.

So, what does “G5” mean?
In painting terms, a Level 5 finish is the highest standard for interior walls. It’s the smooth, flawless base that gives your topcoat an even, professional look. COVERWELL Primer Surfacer G5 is designed to help you achieve precisely that.
What it does
Smooths out imperfections – It fills minor surface irregularities so your walls look even.
Seals the surface – Helps control porosity, so your topcoat doesn’t soak in unevenly.
Dries flat and sands easily – Making it simple to create a smooth base.
Low odour & low VOC – Kinder on you while painting indoors.
Where to use it
This primer is ideal on:
Gib® board and stopped plasterboard
Fibrous plaster
Skim-coated or sunburnt walls (after wallpaper removal)
MDF, pine scotia, and skirting boards
(Tip: For tricky walls that have had wallpaper stripped, use NOVEX COVERWELL Oil-Based Pigmented Sealer first, then follow with G5.)
Prepare the surface – Remove flaking paint, fill cracks, and sand smooth.
Apply one coat – With a roller, brush, or airless sprayer. For very rough or worn walls, a second coat may be needed.
Sand lightly – Once dry, give it a light sand for a perfectly smooth base.
Finish with two topcoats – Use your choice of NOVEX finishing coats for best results.
Why choose G5?
If you want a wall that looks fresh, even, and ready for top-quality paintwork, COVERWELL Primer Surfacer G5 gives you the base to get there. Whether you’re a DIY beginner or a trade painter, it takes the stress out of preparing walls and helps deliver that professional “Level 5” finish every time.
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