Casein Sample Card

Casein Plastics Sample Card

Casein plastics are made from dairy by-products and hardened with formaldehyde, and were patented in Britain in 1911. Casein plastics were made under the trade name "Erinoid" at Lightpill Mills in Stroud for about 70 years from 1912. They were attractive, as they could be dyed in many bright colours and were durable enough to withstand the rigours of washing, ironing, dry cleaning solvents and the like. They became popular for buttons and other household goods. Queen Mary, who first saw the product at the British Industries Fair in 1915, was so taken with it that she ordered a number of items for her own personal use. Casein plastics were eventually replaced by oil-based plastics for most uses, but are still made today on a small scale for high quality goods.


Did you know?

We have other items in the collection which relate to Casein production in Stroud - including a bearing from the Artifix machine which mixed the colour into the plastic


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