Liquid Nails SLC50 Leveller

Priming

For porous concrete prime with Selleys VP30 Primer diluted 1:1 with water (refer to Selleys VP30 Primer TDS). The object of priming is to seal the substrate to prevent air release from the subfloor rising and forming bubbles and pinholes on the surface of the SLC50.

Extremely porous substrates may require two priming/sealing coats. Primer coats must be allowed to dry before applying SLC50.

Where Selleys Liquid Nails VBS or VBS Rapid has been used, a coat of undiluted VP30 Primer must be applied and allowed to dry before the application of SLC50.

Mixing

Each 20 kg bag of SLC50 requires the addition of 4.4 litres of clean, cool water to produce a free-flowing self-smoothing consistency. Water may be reduced to 4.0lt for ramping up to 50mm in one pour.

Pour the mixing water into a clean mixing vessel. Add the powder slowly to the water, mixing continuously with a heavy duty drill capable of stirring at 600rpm and fitted with a suitable paddle. Mixing should continue for at least 2-3 minutes until a smooth creamy consistency is obtained. Always add powder to liquid.

Do not over water as this will promote bleed and separation with a reduction in bond, tensile and compressive strength.

Use mix within 15 minutes after mixing and do not mix more SLC50 than can be reasonably laid within the flow time of the material. However, ensure that subsequent mixes are ready to enable continuous pouring until the area to be surfaced is complete.

Application

Pour SLC50 onto the primed substrate and use a screed bar or trowel to give the required thickness then allow to self-smooth. Pour and level in 5 – 15 minutes.

The maximum thickness applied in any one application is 50mm. If more than one coat is required, allow the SLC50 to dry for at least 12 hours and then prime and repeat application.

SLC50 has a working time of approx.15 minutes, do not attempt to rework material after this time.

Not to be used in immersed situations such as swimming pool, spas etc.

Cleaning

SLC50 should be removed from tools and equipment with clean water immediately after use. Hardened material can only be removed mechanically.

Coverage

Each 20kg bag will cover approximately 12m² at 1mm thick or 4m² at 3mm thick.

Storage

Store in a cool dry place above ground level out of direct sunlight. Under these conditions the product will have a shelf life of 12 months.

Limitations

SLC50 is designed as an underlay material only and NOT a wearing course for traffic.

SLC50 must not be used in areas subject to permanent wetting or where back water pressure is likely.

• Clean up with water before product cures. Use damp rags to remove any splatter from walls etc.
• Discard brushes and rollers after use.