It was used for moulding neoclassical statues, architectural decorations and garden ornaments of the highest quality that remain virtually weatherproof today.
Coade stone features were produced by appointment to George III and the Prince Regent for St George's Chapel, Windsor; The Royal Pavilion, Brighton; Carlton House, London; the Royal Naval College, Greenwich; and refurbishment of Buckingham Palace in the 1820s.
[1][4] In 1769, Mrs Coade[a][b][c][d] bought Daniel Pincot's struggling artificial stone business at Kings Arms Stairs, Narrow Wall, Lambeth, a site now under the Royal Festival Hall.
Various lesser-quality ceramic precursors to Lithodipyra had been both patented and manufactured over the forty (or sixty)[4] years prior to the introduction of her product.
[e] In 1799, Coade appointed her cousin John Sealy (son of her mother's sister, Mary), already working as a modeller, as a partner in her business.
In 1799, she opened a showroom, Coade and Sealy's Gallery of Sculpture, on Pedlar's Acre at the Surrey end of Westminster Bridge Road, to display her products.
The formula used was: This mixture was also referred to as "fortified clay", which was kneaded before insertion into a 1,100 °C (2,000 °F) kiln for firing over four days[11] – a production technique very similar to brick manufacture.
[f] A few works produced by Coade, mainly dating from the later period, have shown poor resistance to weathering due to a bad firing in the kiln where the material was not brought up to a sufficient temperature.
Not entirely however: there are interesting examples of its continued use for architectural embellishments as late as 1887, in some grand Domestic Revival-style houses, built by the architect Frank H. Humphreys, on Pevensey Road, St Leonards-on-Sea, UK.