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Subject:
Re: Aaron's reference to treated canvas tents.
From:
Peter Loring Borst <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Fri, 9 Feb 2018 08:09:59 -0500
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> My memory is that they weighed hundreds of pounds and had a unique (not bad) odor which I now wonder if wasn't an antifungal that should have been avoided. I also wonder what procedure was used to impregnate the cloth so throughly. 

Beeswax has been used for waterproofing canvas for a long time. This formula is from a 1921 patent:

> 1. A waterproofing composition consisting of five quarts of good quality varnish, three quarts Japan sizing, twenty-five ounces beeswax, twenty-five ounces glycerin, ten ounces of eucalyptus oil and two gallons of a thinner. (COMPOSITION FOR PRESERVING CANVAS)

As to the smell, in an article about preserving beehives:

> Cop­per naphthenate is also available as a concentrate that can be diluted with water; we did not evaluate this formu­ lation. It has a moderate non-persistent odor familiar to many because of its common use in preserving canvas. (ABJ, 1986)


PLB

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