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Restoring Old Canvas?

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#1 Bob B

Bob B

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Posted 31 July 2004 - 08:15 AM

Restoring old canvas?

I have an old GI-issue canvas magazine case in overall good condition. We've all seen the type - dull mustard in color with blackened brass snaps and grommets that have begun to show some green corrosion around the edges. Problem is that over time the cotton fabric has lost its original moisture-repellent qualities and (like old books) has also become somewhat acidic. This threatens not only the canvas case itself, but the magazines it holds. In summer the material absorbs moisture from the air, and causes rust spots even though the magazines are well-oiled.

I figured I'd neutralize the acidic condition by fuming with ammonia for a few days in a sealed cabinet - the same trick used by book conservators to de-acidify the paper in old books. However, I don't know how to treat the canvas to make it less moisture-absorbent. Does anyone know the formula of the original "waterproofing" used on webbing and canvas goods?
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#2 Bill in VA

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Posted 31 July 2004 - 08:41 AM

How about Scotch Guard? I don't think it will darken the color any...at least it hasn't with my furniture and carpet.
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