Heart & Industry

Home · Cornish Lime

Cornerstone Performance Tanking Render

Cornerstone Performance Tanking Render

Cornish Lime

£21

Price read from Cornish Lime on 2026-10-15. Check before buying.

A ready mixed waterproof natural cement tanking render for internal and external masonry requiring robust protection from water and sulphate penetration. Available in a 25kg bag. Cornerstone Performance Tanking Render is a dry ready mixed waterproof natural cement tanking render for the robust protection of internal masonry from water and salts below the ground level. Available in the colour tan. Manufacturing by Cornerstone utilising Prompt Natural Cement, natural sands and a retarder to create a high-performance render for the tanking of substrates to prevent water penetration and long-term

Cornish Lime's own words, read from their page.

Buy from Cornish LimePrice seen 2026-10-15. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.