RoundTower Hydraulic Limes & Lime Putty

RoundTower Natural Hydraulic Lime is a high-performance, eco-friendly binder ideal for traditional and modern construction. Sourced and produced to the highest standards, it offers excellent workability. breathability, and long-term durability. Suitable for mortars, plasters, and renders, RoundTower NHL is perfect for heritage restorations and sustainable new builds alike.

Available in NHL 2, NHL 3.5, and NHL 5 grades, it supports a wide range of applications depending on strength and setting time requirements.

RoundTower's Lime Putty is a high-calcium, matured product ideal for traditional building applications. Guaranteed to have been aged for a minimum of four months, this putty ensures full conversion of quicklime to calcium hydroxide, enhancing its workability and performance. It is particularly suited for fine plasterwork, creating intricate designs, and can be combined with pigments to produce breathable limewash paints.

Its compatibility with historic structures makes it excellent for pointing masonry, seamlessly integrating new and old mortar to prevent potential damage from incompatible materials.