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Date: | Thu, 2 Jul 1998 15:52:52 -0400 |
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We are preparing to restore an historic covered bridge, built in 1881 and
according to the original specs, painted with "brown fire-proof paint".
Has anyone researched fire-proof paint? We have found several references
to it and even a few recipes (all with very different ingredients I
think--one based on lampblack, graphite, manganese oxide, , turpentine,
linseed oil etc.--another on slaked lime, alum, rock salt, copperas,
potash, sand or hickory ashes).
Is there a common thread here?? Any ideas about what pigments would be
mixed with either of the above to produce brown? Any suggestions would be
appreciated.
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