Ardex W820 Superfinish – Universal Finishing Plaster
Ardex W820 Superfinish – Universal Finishing Plaster is a brilliant white, rapid hardening, polymer modified gypsum based compound for filling, smoothing and finishing interior walls and ceilings, in dry areas.
Can be applied in thin and thick applications and, with its non-shrink formulation, it is an ideal background to apply paint, wallpaper and other decorative finishes.
Ardex W820 Superfinish Uses
Ardex W820 can be applied in a variety of ways, by hand, roller or spray application to plaster, walls and ceilings. Ideal for fast track installation when covering larger areas. Ardex W820 can also be used to create decorative designs.
Ardex W820 can be used on the following substrates:
- Pre-rendered walls
- Suitable concrete backgrounds
- Aerated concrete
- Lightweight blocks
- Construction boards
- Filling of joints in plasterboards and prefabricated concrete slabs
Small quantities can be mixed by hand. Gradually add 2 parts by volume of powder to 1 part by volume of clean water and thoroughly mix to the consistency required. Allow the product to stand for approximately 2-3 minutes after mixing to allow all of the high performance additives to fully dissolve and wet out before remixing the product to a smooth creamy consistency. Apply with a notched/smooth steel trowel, coarse roller, spray pump, blade or filling knife. Notched trowel and roller application techniques require smoothing after application to the substrate, with a large straight edge/smoothing blade to create a smooth uniform finish. All application techniques can be smoothed with a straight edge/smoothing blade. Apply at temperatures above 5°C.
All information on surface preparation, mixing, thicknesses and drying times can be found on the technical datasheet.
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