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St Astier NHL 2 Hydraulic Lime 25Kg Bag

In stock

£15.82 + VAT

Shelf life and Guarantee
12 months from production date if kept sealed in original container and stored in dry conditions at temperatures above 8°C. Manufacturer civil Responsibility.

Suitable backgrounds
Lightweight blocks, brick, stone, flint, cob, clay lump. For loose or friable substrate, it may be necessary to consolidate with a hydraulic Limewash or a bonding agent.

Working Temperature
Not below 8°C or above 30°C. Ensure high suction substrates are thoroughly dampened before application. Avoid rapid drying due to high temperatures and strong winds by covering and curing with a light water mist as necessary.

Mixing
Can be mixed in a cement mixer or using a whisk. Maintain slow revolutions (about 450-700 rpm) to prevent adding too much air that could change the properties of the mix. Mixing time must be at least 5 minutes until you obtain a uniform consistency with no lumps. Avoid manual mixing as it does not guarantee an optimum mix. Once the mix is ready is should be left to stand for approx. 5 minutes before use to allow proper development of the binder.

General Characteristics

  • Initial setting time: 5 to 6 hours
  • Compressive strength 28 days: 3,5Mpa = 35 Kg/cm² (av.)
  • Density (volumetric weight) typical: 500 gr. / litre (av.)