Saint-Astier® NHL5

Suitable for pointing, rendering, limecrete, grouting, capping, mass wall building, foundation, marine applications, chimney stacks and new build masonry. Before starting, always try on a small test area.

Mix with clean and well-graded sand at a mix ratio from 1:1.5 to 1:3, depending on the application, background conditions, size of the joint or the fineness of the sand. View our range of sands for lime pointing, rendering and plastering.

Do not use in temperatures below 5°C or above 30°C. Dampen substrates the day before and prior to application, allowing the surface water to be reabsorbed. Avoid rapid drying due to high temperatures, direct sunlight or strong winds by covering and curing with a light water mist as necessary.

We always advise following best practices for curing and protecting fresh lime mortars and renders from direct sunlight and wind using hessian sheeting, which acts as a barrier between the freshly applied lime and the environment. We have a range of hessian sheeting available as full rolls or per metre. For more guidance on curing and protection, see our helpful guide on curing lime renders and mortars.

See the Technical Data and Documentation section for detailed product information, application guidance, and datasheets. Always review any available documents before use. Each project is unique, always seek professional advice before undertaking a project.

When working with lime, an alkaline material, always ensure you wear the appropriate PPE. Browse our range of tools and PPE to get started.