SpECtop SLC is a one-part self-levelling product
consisting of specially selected cements, graded
sands and plasticisers.

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Technical Details

SpECtop SLC is a very low emission floor levelling compound for producing smooth and levelled substrates for a wide range of floor finishes including mineral screeds, concrete, tiles and slabs, natural stones and terrazzo.

Note: SpECtop SLC to be used in dry areas only. Do not use as a screed or wearing surface and on mastic asphalt screeds.
• Self-levelling and pumpable
• Good strength values


Grey powder 
Working time 

Approx 20 minutes 

Foot traffic 

Ready for covering 

After 24 hours up to 3mm layer thickness After 48 – 72 hours above 3mm layers thickness 

Typical thickness 

From 0.5 to 20mm in one single application 

Surface preparation
It is essential that adequate preparation is carried out prior to the application of SpECtop SLC. Surface should be clean, free from structural defects, firm, permanently dry, and free of release agents. Light sweep blasting is recommended to ensure the removal of all laitance, grease and oil. Always grind calcium sulphate screeds and vacuum clean.

Primer is not required generally for a smooth, sound concrete surfaces. For extremely porous substrates use one coat of SpECtop SLC Primer at about 100µm wft and allow it to dry for at least 1 – 2 hours prior to the application of SpECtop SLC.

SpECtop SLC is supplied as a one-part floor levelling compound.
The specified water quantity should be measured in an accurately graduated vessel and added to the mixer. The bagged powder is then added slowly whilst mixing using a slow speed heavy duty drill fitted with a suitable mixing paddle (SpEC Technical Department can advise). Mix for 2 – 4 minutes.

The recommended water used per 25kg bag is 6.25 litres.

Do not mix with other levelling compounds

Pour the mixed product onto the substrate and spread using a smoothing trowel or spreader. On non-absorbent mineral substrates a minimum layer thickness of 2mm must be applied. Protect the freshly applied compound from direct sunlight and droughts. Do not use in wet or outdoor areas.
SpECtop SLC is s supplied in 25kg bags with a coverage rate of 1.5 kg/m²/1mm layer thickness.

SpECtop SLC Primer is supplied in 5 and 20 litre packs with a coverage rate of 7 – 10 m²/litre.
Contact us for more info.

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