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).
Treatment and testing of petrol-resistant coatings for cork floats on the 'Goshawk' project.
| Identifier | ExFiles\Box 49\3\ Scan235 | |
| Date | 1st May 1922 | |
| X4266 Hs. {Lord Ernest Hives - Chair} c. to By. {R.W. Bailey - Chief Engineer} (crossed out) Roy {Sir Henry Royce} 4/W29. 5. 22 RE CORK FLOATS FOR PETROL TANKS AND OIL BASES ON "GOSHAWK". Necol Ltd. have now treated two cork floats we sent them with their special Black enamel S.2566. One cork has been sprayed with three coats of this enamel, using 1 1/2 ozs. in 3 mins., and the other with six coats of the same enamel using three ozs. in 6 mins., and the Necol Co. claim that they are now proof against the action of petrol, etc. Titanine Ltd. of London have also submitted a special dope, which they claim is petrol and benzol resisting, adheres well, does not contract, and in their opinion would answer our purpose. They state: "The best means will be found by experiment. A good plan might be to first warm the cork float (to drive the air out of the interstices) and then dip it into the dope and allowing the float to dry, afterwards giving it a second coat either by dipping again or by means of a brush. Another method would be to soak the float first of all in Acetone and then allow it partially to dry before dipping it into the dope. The Acetone in the pores would act as a conveyer of the dope and facilitate subsequent penetration. We have heard of wooden floats being used in the United States and our branch in New York have supplied a similar dope for the purpose. We could inquire further information for you on the subject if desired. Should our sample not answer the purpose, on hearing from you, we should be glad to submit a fresh ( Contd.) | ||