St Astier

St Astier Natural Hydraulic Lime (NHL) is a premium lime binder renowned for its purity, consistency, and versatility. Sourced from a unique limestone deposit in France, it offers exceptional mineralogical qualities that ensure compatibility with a wide range of building materials. Available in three grades—NHL 2, NHL 3.5, and NHL 5—it caters to various construction needs, from delicate restoration work to robust structural applications.

NHL 2 is ideal for internal work and soft masonry, providing high elasticity and breathability. NHL 3.5 serves as a versatile option suitable for general-purpose construction, offering moderate strength and good weather resistance. NHL 5 delivers high compressive strength, making it suitable for exposed areas and marine environments. All grades promote moisture exchange and are resistant to salts and sulfates, ensuring long-term durability and compatibility with historic and modern structures alike.