Background
De Waele was born in Islington, London, in 1887, the son of a Belgian father and French mother.
De Waele was born in Islington, London, in 1887, the son of a Belgian father and French mother.
He held dual nationality until the age of 21, when he chose to be a British rather than Belgian. He obtained a Bachelor of Science from the Regent Street Polytechnic then worked in the paint and linoleum industries.
After the First World War he joined Gestetner as Chief Research Chemist, where he remained till 1957 when he retired. During this period he published 30 papers on rheology and patents on duplicating as well as a book He was a Fellow of the Royal Institute of Chemistry and of the Institute of Physics.