Description
Ardex AM100 One Coat Tiling Render is a grey rapid-setting sand and cement render that can receive tiling in as little as 2 hours after application. It is preblended, requiring only the addition of water to produce a slump free mortar that can be applied 2-30mm thick in a single coat.
Ardex AM100 is supplied in 25kg bags.
Ardex AM100 can be applied from 2mm up to 30mm thickness in a single coat, and is particularly useful in situations where the drying time and thickness of conventional sand and cement renders cannot be accommodated.
Ardex AM100 is suitable for rendering suitably prepared in-situ concrete walls, brickwork and block work. Ardex AM100 One Coat Tiling Render is suitable for use in internal and external areas, including swimming pools.
Surface Preparation:
All backgrounds must be suitably stable and any movement joints brought through to the tiling surface. All surfaces must be clean, firm and free of dust, dirt, oil, grease, paint, gypsum plaster and other barriers to adhesion; the use of suitable mechanical preparation equipment may be required. They must have had adequate drying time as given in the relevant part of BS 5385, i.e. in-situ concrete walls, brickwork and block work should be allowed to shrink for at least 6 weeks.
When rendering to concrete substrates, the aggregate surface should be exposed as advised in BS 5385. Settlement cracks can be filled with rendering mortar; however, if they are caused by structural movement, there is no guarantee they can be eliminated. Smalls cracks should be cut out and enlarged so that better contact is obtained. Metal components must be given adequate corrosion protection.
Anchored reinforcements should be installed and mechanically fixed to the background when rendering to the following backgrounds/ locations: dense surfaces such as glazed bricks or ceramic tiles; timber framed constructions; old paint finishes that cannot be removed and other weak surfaces; and above first floor heights externally. All reinforcement and mesh must be secured in accordance with the manufacturer’s guidance and/or BS 5385. NOTE: The substrate must be prepared, whether internal or external, so as to guarantee the adhesion of the Ardex AM100 One Coat Tiling Render mortar when applied.
Mixing:
The mix proportions by volume are approximately 3.5 parts Ardex AM100 powder to 1 part clean water. A 25kg bag of Ardex AM 100 requires approximately 5 litres of water. Add the Ardex AM100 powder to the water in a clean container, whilst stirring and mixing thoroughly until a slump-free mortar is achieved. The use of an Ardex mixing paddle with a 10mm chuck, variable-speed electric drill makes light work of mixing, or a forced action mixer can be used for larger quantities.
The pot life of the mixed mortar is approximately 30 minutes at 20°C. This time will be extended in lower temperatures and shortened at higher temperatures.
Application:
Apply at temperatures above 5°C. Ardex AM 100 should firstly be applied as a 1-2mm thick skim coat/bonding layer, before the remaining required thickness (up to 30mm) is applied fresh-in-fresh. When applying to the deeper thicknesses over larger areas, the material can be applied in two layers if preferred. For example, for a total depth of 30mm, a 25mm thick later can be applied, allowed to harden and then followed by a 5mm thick layer. When applying in two layers, ensure the top layer is always thinner than the initial layer.
Treatments & Tiling:
Depending on the porosity of the background being rendered, further treatment such as wood floating can be carried out between 40 minutes and 1 hour after application at 20°C. If required, Ardex waterproof coatings, Ardex WPC for wet (not submerged) areas and Ardex S7 PLUS for swimming pools, can be applied typically after 2 hours at 20°C.
Tiles can typically be fixed in as little as 2 hours at 20°C using an appropriate Ardex Cement-Based Tile Adhesive. These times are dependent on site conditions, and will be extended in lower temperatures and shortened at higher temperatures. NOTE: When tiling, the rendering should be finished to SR1 as per BS 5385.
Coverage:
Approximately 1.3kg of Ardex AM 100 powder/m²/mm i.e. a 25kg bag will cover approximately 3.2m2 at 6mm thick.
Technical Data:
Bulk density: approximately 1.5kg/litre
Weight of fresh mortar: approximately 1.6kg/litre
Application time (20°C): approximately 30 minutes
Ready to receive wall tiling (20°C): approximately 2 hours
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