Hydraulic Lime

External Rendering using St Astier NHL

Wet surface if dry.

A stipple coat (4 parts lime to 5 parts sand) may be required if surfaces are of different materials. Apply up to 3mm thick.

Apply 10mm scratch coat using NHL 3.5 and sharp washed sand at 2 sand:1 lime ratio by volume adding fibres if specified. Mix dry for 5-10 minutes and for 5 minutes after adding water.

Allow to cure (3-5 days depending on conditions). Cross scratch to provide keying.

Mist surface. Apply straightening coat 10mm thick using 2.5:1 ratio by volume. Allow to cure. Scratch using devil float.

Mist surface. Apply finish coat using NHL 3.5 and sharp sand at ratio 2.5:1. by volume. Apply 5mm in 2 passes with wood/plastic float for a textured finish.

Protect each coat with Hessian covers for 72 hours min. In winter months protection should be for 5-7 days.

Protect against drying winds both hot and cold.

Dampened Hessian will protect against strong sun and will slow drying, enabling curing to take place.

Please contact us if you have any queries or problems.

Contact Traditional Lime

Get in touch

Call us on 01242 525444 or email us at info@traditionallime.co.uk

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