CL St Astier Hydraulic Lime NHL 2 – 25kg

CL St Astier Natural Hydraulic Lime NHL 2 is a premium lime mortar ideal for conservation, plastering, and fine rendering. Supplied in a 25kg bag, it is recognised for its low strength, high flexibility, and excellent breathability—making it especially suitable for heritage restoration and eco-friendly construction.

Specifications

• Product type: Natural Hydraulic Lime (NHL 2)
• Weight: 25kg bag
• Strength class: NHL 2 (low-strength, highly flexible)
• Colour: Light off-white
• Applications: Plastering, pointing, fine rendering, historic building conservation
• Use areas: Internal and external

Features & Benefits

• Low strength and high flexibility – reduces risk of cracking on delicate substrates
• Provides excellent moisture regulation and breathability
• Ideal for soft masonry, stone, cob, and heritage brickwork
• Suitable for lime mortars, renders, and plasters
• Natural and eco-friendly alternative to cementitious materials
• Long-lasting durability with sympathetic restoration results

Why Choose CL St Astier NHL 2?

• World-renowned St Astier quality lime products
• Perfect for listed buildings, conservation areas, and traditional properties
• Enhances building longevity by reducing trapped moisture
• Trusted material for architects, builders, and conservation specialists

What is NHL 2 best used for compared to NHL 3.5 or 5?
NHL 2 is a softer lime, perfect for interior plasters, heritage pointing, and delicate restoration work. NHL 3.5 is stronger and more versatile for general use, while NHL 5 is used in exposed or load-bearing situations.