ARDEX A 828™ Wall Filler and Surface Filler

ARDEX A 828 is a brilliant white, rapid hardening, plaster for filling, smoothing and finishing interior walls and ceilings.

Ideal for smoothing and plastering a variety of surfaces, such as – render, concrete, aerated concrete, plasterboard, construction boards
Can be used as a deep wall filler with all the advantages of a fast setting plaster
Can fill large surface depressions in walls and ceilings
Covers old decorative finishes such as ARTEX
Available in a lemon scent for sensitive installations
Slump, tension and crack free

ARDEX 828 Conforms to EN 13963: 2014 Jointing Material for Gypsum Boards and A1 in accordance with EN 13501-1

Specification

Mixing ratioapprox.
13 litres of water to 25kg powder is equivalent to approx. 1 vol. of water: 2 vol. of powder.
Bulk densityapprox.
1.0kg/litre
Mortar weight when freshly mixed
approx. 1.5kg/litre
Material requirementapprox.
1.0kg powder per m²/mm
Working time at 20°Capprox.
30 minutes
Painting and pasting workafter drying
Ball pressure hardness after 28 daysapprox. 9 N/mm²
Tensile bending strength after 28 daysapprox. 4 N/mm²
pH-Valueapprox. 8