Cornerstone
Cornerstone

Cornerstone

Industry-leading mortars, renders & plasters for every sector

Our vision is a future where buildings are healthier, more sustainable and built to last. We are driven to meet the complex needs of the industry with lime-based products that are accessible, efficient and consistent in performance, all while meeting the needs of those working with the materials on the ground.

A one-size-fits-all approach is a fundamental issue in our industry. We believe in transparency, thrive in complexity and remain intentional in providing solutions that bring real value.

Our years of experience have earned us a reputation for quality, service and innovation. Our range of products is diverse to meet the unique needs of both contemporary and historic construction.

Products

Cornerstone SuperTherm

Cornerstone SuperTherm

Cornerstone SuperTherm is a dry ready mixed lime plaster designed as an ultra-lightweight and low density fibred basecoat for internal applications within a minimum of a two-coat plaster application. Available

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Insulating Render

Insulating Render

Cornerstone Insulating Render is a dry ready mixed render and plaster designed as a lightweight fibred basecoat for external applications or a basecoat and topcoat for internal applications within a

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Newbuild Medium Mortar & Render

Newbuild Medium Mortar & Render

Cornerstone Newbuild Medium is a dry ready mixed multipurpose hydraulic lime mortar and render for general building and pointing work or as a finishing render within an appropriate render system.

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Performance Wintermix Mortar & Render

Performance Wintermix Mortar & Render

Cornerstone Wintermix is a dry ready mixed multipurpose natural hydraulic lime mortar, render and plaster formulated explicitly for work in challenging cold environmental conditions. Available in the colour off-white. Engineered

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Drymix Coarse Mortar

Drymix Coarse Mortar

Cornerstone Drymix Coarse is a dry ready mixed lime mortar for general building, bedding and pointing work. Available in the colour buff. Engineered with precision, utilising 100% pure natural hydraulic

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Marine P15 Mortar

Marine P15 Mortar

Cornerstone Marine P15 is a dry ready mixed natural cement mortar for marine building and pointing work of water-bearing masonry above and below the water level in aggressive marine environments.

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Low Strength Masonry Grout

Low Strength Masonry Grout

Cornerstone Low Strength Masonry Grout is a dry ready mixed lime grout designed for pumping, pouring, or needle injecting into solid-walled masonry to effectively fill gaps, spaces or cavities. Engineered

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