New Materials

Industrial Tapes Ltd., Speedfix House, 142–146 Old Street, London, E.C.1, have extended their range of Speedfix self‐adhesive tapes by introducing tapes suitable for stopping off in plating baths. These tapes, of which there are seven, are resistant to acids and alkalis up to boiling point, are very flexible for working on to uneven surfaces, do not leave a deposit when stripped, and have an adhesive which does not react with the metal surface.