From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Further tests conducted on Redmanol Varnish.
| Identifier | ExFiles\Box 39\3\ Scan229 | |
| Date | 16th May 1924 | |
| EFC. AC.15. COPY. 16th May 1924. FURTHER TESTS ON REDMANOL VARNISH. The sample of Redmanold varnish reported in AC.4, 6.3.24, has been retested; this time after baking. A sheet of tin-foil was covered and handed to Mr. Brock for several hours' baking in the drying ovens. After baking the varnish was of a deep yellow colour and it became somewhat roughened owing to the formation of bubbles. It was now very brittle and cracked on being bent round a rod of .25" a radius. When placed in water, the foil very soon curled up sharply, with the varnish outside (the varnish apparently swelling) and after soaking for over 100 hours, it flaked off so that the weight of water absorbed could not be checked. The test therefore was discontinued after this point. EFC/F.J.Allen. | ||