LANKO® 173 Floor Leveller

Up to 12 months from date of manufacture if unopened.

High humidity reduces shelf life.

Store above ground out of direct sunslight in dry cool conditions.

1.28per kg/m³

4 - 4.5 Litres water per 20kg bag

LANKO® 173 Floor Leveller is designed for used for applications between 1- 25mm.

Should deeper pours be needed from 25-100mm, pour at a maximum 25mm deep increments, allowing to dry and re-prime between pours

Extended applications with aggregate for application from 25-100mm

LANKO® 173 Floor Leveller can be extended with 3-8mm aggregate or pea gravel for pour depths of 10-100mm.

Maximum layer thickness when applied shall be no greater than 100mm when extended.

10 minutes

Drying time is dependent on jobsite temperature, humidity, installation thickness and floor covering type. 

Wait times are measured at 23°C and 50% reletive humidity in laboratory conditions, cool and cold temperatures will extended drying times. use waits times as a guide only.

1 bag will cover approximately 12m² at 1mm of thickness.

• High speed mixing drill (650rpm) with stirrer attachment or Multi-bag Mixing Station or suitable levelling pump machine
• Large mixing pail 20+ litres
• Flat trowel or long handled applicator/trowel

• Surfaces, must be dry, structurally sound, clean, free of dust,dirt, wax, oil, grease, asphalt, mastic, latex compounds, adhesives, paint, gypsum-based products and other contaminants.
• All concrete sub-floors must be fully cured and dry, in accordance with AS1884-2021. They must be free of laitance, loose or deteriorated concrete, curing or form release agents, other contaminants and have a wood float finish. For sub-floors with a high moisture content or subject to rising damp, apply suitable Sika Moisture Barrier. Refer to priming instructions.
• Highly burnished, glossy finished concrete shall be mechanically prepared prior to application
• Deeply contaminated substrates must be mechanically prepared prior to application.

Substrates can pre prepared and checked in accordance with AS 1884:2021 prior to application.

All Substrates shall be primed prior to application. 

Priming is crucial prior to the application of LANKO® 173 Floor Leveller. It is designed to improve adhesion and greatly reduce pinholing in the finished floor.

Porous Priming - Lanko 124 Ultraaprime

Concrete shall accept water penetration, should the concrete not accept water mechanical preparation shall be required to open the pores of the concrete.

• Porous concrete shall be primed with Lanko 124 Ultraprime (do not dilute, apply neat to the surface).

Porous primer note: Under hot, windy conditions (Temperatures above 30ºC), it is essential to wet down any concrete slabs with clean water prior to priming, so that the primer does not flash dry. After wetting down the floor, do not allow the water to pool or pond on the surface. The substrate should appear matt, with no signs of glistening water evident prior to application of the primer.

Non-Porous Priming - SikaFloor-14 Prep n Prime

Existing sound and firmly fixed ceramic tiles can be primed with SikaFloor-14 Prep n Prime.

High Moisture Content Concrete

Concrete that has high moisture content (greater to 75% relative humidity) shall be pre-treated with a appriopriate Sika moisture barrier and then a non porous primer.

Suitable Sika Moisture Barriers

• Sikalastic Moisture Seal
• SikaFloor 158W Fast Barrier

Once Sika Moisture barrier are installed apply a single coat of SikaFloor-14 Prep N Prime over the moisture barrier and allow to dry prior to application of LANKO® 173 Floor Leveller.

Refer to the complete user instructions on the product data sheet of associated products prior to use.

1. Electric stirring is required as it produces a much smoother mix. The most efficient method of mixing LANKO® 173 Floor Leveller is by using a 1/2 inch or 12 mm heavy-duty electric drill (maximum 650 rpm). Concrete mixers or hand mixing are not suitable methods for mixing.
2. Add between 4 – 4.5L of clean, cool potable water to a clean bucket, and then slowly add the 20kg bag of Davco Lanko 173 Floor Leveller. Mix for no less than 2 minutes, and long enough to provide a smooth, lump free, flowable blend. If foaming and streakiness appear on top of the mixture, LANKO® 173 Floor Leveller is over-watered, and should not be placed on the substrate.
3.  For large areas requiring fills between 25 and 100mm, add washed, surface dry, graded gravel to the mix. If the gravel is 3 to 8mm, add 10kg of gravel per bag of LANKO® 173 Floor Leveller. If the gravel is 8 to 12mm, add 20kg of gravel per bag of LANKO® 173 Floor Leveller. Mix the Lanko 173 first, and then add the dry aggregate to the mixed material. Reduce the water required if the aggregate is damp. The addition of aggregate will severely reduce material flowability. It is very important not to add more than the quantities of aggregate specified above. A subsequent smoothing layer may be required, if aggregate is added to the mix.
4. If pumping, mix in an appropriate pre-pump mixer. Do not mix more material than can be used in 10 minutes. Mix speeds must not be too high; otherwise they will cause aeration.
5. Clean mixers and pumps thoroughly after each batch to avoid material build up.

1. Pump or hand pour LANKO® 173 Floor Leveller on to the primed surface. Move it into approximate position with a trowel or spreader, and allow the material to seek its own level.
2. Place LANKO® 173 Floor Leveller soon after mixing. It will achieve initial set in approximately 2 hours, and may be walked on in approximately 2 - 3 hours.
3. LANKO® 173 Floor Leveller must cure at least 4 hours before tiling; at least 16 – 24 hours before carpeting and at least 24 – 36 hours before laying vinyl. Although LANKO® 173 Floor Levellercan be used externally, it is important to protect the product during placement and whilst curing from direct sunlight and winds. This is to prevent flash set /cure and desiccation (excessive moisture loss). This is particularly important when laying thicknesses in excess of 10mm.
4. When applying the LANKO® 173 Floor Leveller in multiple layers, the additional layers can be applied as soon as the first layer becomes walkable. Re apply primer prior to applying additional layers.

Tool and equipment can be cleaned prior to materials drying.