Use a thin paper gasket such as 1/64" "sheet jointing" smeared both sides with a jointing compound such as "Heldite", Rocal's Gaphite "Foliac" or plumbers" boss/stage white"
Heritage Steam will have all the jointing compounds, their papers may be a bit thick but the ME suppliers will have 1/64" jointing shuch as Reeves, Polly, Blackgates
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Edited By JasonB on 05/11/2013 18:44:20