Mapei Latexplan No Ammonia Levelling Compound is a two-part, fast-setting, cement based levelling compound suitable for use over most existing adhesive residues (including bitumen) and onto plywood substrates. Resilient floor coverings can be installed after 4 hours.

Mapei Latexplan No Ammonia comes as a two-part 25kg unit consisting of a 20kg bag of powder (Part A) and a 4.4kg bottle of latex (Part B).

Mapei Latexplan No Ammonia is a two-part cement based smoothing compound consisting of a grey powder (part A) containing special cements, graded silica sands and additives, to be mixed with a synthetic rubber latex (part B).

Mapei Latexplan No Ammonia can receive light foot traffic after approximately 60 minutes and is ready to receive floor coverings after 4hrs, depending on the ambient temperature.

Latexplan No Ammonia has a very low odour, making it suitable for use in confined and inhabited areas, where working and/or occupation needs to be maintained. Latexplan No Ammonia should not be mixed with any additional latex or water.

Where to use:
Mapei Latexplan No Ammonia is suitable for levelling differences in thickness between 3mm to 10mm on new and existing substrates. It can be used over most existing adhesive residues, including bitumen. Also suitable for use over plywood substrates and MAPEI surface applied DPMs in most cases without priming. Accepts subsequent floor coverings in 4 hours. In most cases, priming is not required. Mapei Latexplan No Ammonia is suitable for use with underfloor heating and moisture tolerant; can be applied below surface applied damp proof membranes.

Some application examples:
Smoothing plywood, concrete floors, sand:cement screeds, MAPEI Mapecem and Topcem screeds. For smoothing over existing floors in concrete, ceramic and porcelain tiles and natural stone without priming. And over any MAPEI surface applied DPM’s.

Mapei Latexplan No Ammonia Application Procedure:

• Preparation of the substrate:
  The subfloor must be clean, structurally sound and free from grease, oil, paint, polish, dust, plaster droppings, surface contamination and any water softenable or loosely adhered materials. Any remaining adhesive residues should be checked to ensure that they are hard, sound and are not water softenable and have sufficient cohesive strength to receive a levelling compound. Bitumen residues must be hard and fully bonded to the substrate.
  Where moisture sensitive floorcoverings are to be installed, a British Standard approved test should indicate a moisture level of 75% RH or less. If this level has not been achieved the use of a MAPEI surface membrane will control residual/static moisture in cementitious substrates.
  Plywood substrates must be securely fixed in accordance with BS8203 i.e using minimum 6 mm external grade plywood or similar.
  For gypsum and anhydrite substrates the maximum moisture level should be 0.5% w/w as measured with a carbide hygrometer. In all cases, no higher than the level recommended by the manufacturer of the floorcovering. A suitable primer must be applied, such as Mapei Eco Prim T Plus, prior to applying the smoothing compound to anhydrite or gypsum based screeds.
• Priming:
  On highly porous and absorbent surfaces, a coat of primer prior to the application will prevent pinholes within the surface, providing a smooth even finish.
  Mapei Eco Prim T Plus acrylic primer may be used on all absorbent and non-absorbent substrates. For difficult and non-absorbent surfaces use Mapei Eco Prim Grip Plus.
  For marine use apply a thin coat of Mapei Eco Prim Marine onto the clean dry surface without leaving pools of primer on the surface. allow the primer to dry (35-40 minutes) then apply Mapei Latexplan No Ammonia.
  Mapei Mapeproof ESM and Mapeproof One Coat surface applied DPMs will only need priming if left for more than 18 hours.
  Mapei Mapeproof 1K Turbo must be primed prior to the application of Mapei Latexplan No Ammonia.
• Mixing:
  Mix 20 kg of Latexplan No Ammonia part A powder into 4.4 kg of Mapei Latexplan No Ammonia part B liquid. The Mapei Latexplan No Ammonia part B liquid container should be shaken and poured into a clean mixing container. The Mapei Latexplan No Ammonia part A powder is then added gradually whilst continually stirring with a mixing paddle attached to a slow-speed drill. The mixed product has a working time of approximately 20 minutes at +23°C.
  Do not add any additional latex liquid or water.
  Do not over mix the products as this may create excessive heat and cause the mixed product to cure too quickly.
• Application:
  The mixed product is poured onto the prepared sub-floor and spread with a smooth edged trowel to the required thickness in one operation. Additionally, the use of a spiked aeration roller will ensure a smooth even finish that will not require any further attention prior to the floor coverings being installed.
  Mapei Latexplan No Ammonia can be applied from featheredge to 10mm, although a minimum 3mm thickness is recommended to provide the optimum absorption for the adhesive, apply at a minimum floor temperature of +5°C or above.

Drying:
At normal temperatures Mapei Latexplan No Ammonia is set to receive light foot traffic after 60 minutes and bonded floor coverings after 4hrs. N.B. Mapei Latexplan No Ammonia will remain a darker colour even when cured after 4 hours.

Coverage:
One unit (part A + part B) will cover approximately 5m² at 3 mm thickness.

Technical Data:
PART A
Consistency: fine powder
Colour: grey
Dry solids content (%): 100
Bulk Density (kg/m³): 1,400
Flammable: no
PART B
Consistency: runny liquid
Colour: white
Dry solids content (%): 9
Bulk density (kg/m³): 1,05
Flammable: no
COMPOSITION AND PROPERTIES OF THE MIXTURE
Mixing ratio: 4.4 kg of Mapei Latexplan No Ammonia liquid with 20 kg of Latexplan No Ammonia powder
Thickness per coat: 3 mm to 10 mm
Density of mix (kg/m³): 2,000
Application temperature range: +5°C to +35°C
Workability (at +23°C): 20 minutes
Setting time: 30 minutes
Set to light foot traffic: 60 minutes
Time before laying floorcovering: after 4 hours

Unit Size Available: 20kg bag of powder (Part A) and a 4.4kg bottle of latex (Part B).

Coverage: 20kg bag of powder (Part A) and a 4.4kg bottle of latex (Part B).