John Carmichael wrote; >Hello Frank > >I'd like to help you with your question, but first, do you know the type of >stone in which the Dalton dial is carved? Also, by water repellent do you >mean a sealer such as polyurethane? > > Reply to John: I believe the dial is of sandstone. I don't know what water repellent was used as I have only a copy of the conserver's proposals (the same man for both the Escomb and Dalton dials). He wrote only: After conservation a water repellent must also be applied and re- application of this water repellent coating is necessary at 5-10 year intervals to maintain the protection of the underlying stone in an exposed environment.
However, no note of a water repellent appears in his account of the work finally done. I hasten to say that although I was involved in the initial proposal to protect the dial in some way I have nothing (other than interest) to do with this work. That is in the care of the parish. But acid rain has become a destroying demon in this part of the world. Thanks for your message. Best wishes, Frank. -- Frank Evans
