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May 2007 Repair Report - May
Maintenance Madness |
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Failing glazing putty
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Glaze-Ease 601
"How does
Glaze-Ease compare to linseed oil putties?"
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Linseed oil putty has been around forever. It's been in use for
at least 400 years. |
Linseed oil putty is basically linseed oil and chalk (calcium
carbonate). As linseed oil putties dry, the oil off-gases and
leaves behind a rock hard mass of caulk. This mass has a poor
adhesive strength and allows moisture to penetrate. This hard
mass also cracks during expansion and contraction of the wood
and glass. Yes, even glass moves a little with hot and cold!
Modern formulas of glazing putty have made little change from
the 400 year old formula. These materials take a long time to
skin and can take as long as 4 weeks to harden enough to provide
a sound surface for paint.
Introducing Glaze-Ease 601
Based on high quality acrylic resins, Glaze-Ease 601 provides a
sound and durable seal to the glass and wood ( or metal ) sash.
Glaze-Ease 601 is quick to install and tools to a traditional
look in seconds. Within 2 hours, 601 can be painted. Preferably
with an acrylic primer and top coat. 601 cures with minimal
shrinkage and will remain flexible for years.
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In 2006, historic preservation architect John G. Waite
Associates, Albany, NY, chose Glaze-Ease 601 to glaze the new
laminated glass in the great dome of the Baltimore Basilica. |
Baltimore Basilica
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historic Baltimore Basilica, built from 1806-1821, was the first
great metropolitan Cathedral constructed in America after the
adoption of the Constitution. "When the Cathedral was first
constructed, the only building that could compete with it in
size, scale, and architectural sophistication was the United
States Capitol," said Jack G. Waite, Principal Architect with
John G. Waite Associates, Architects. "Architecturally, it was
the most advanced building in the country." |
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Inside the dome of the
Baltimore Basilica |
Blair
Lee of Alleghany Restorations, Morgantown, WV was the
contracting firm chosen to restore the Great Dome.
"Glaze-Ease was the perfect choice for the dome", says Lee,
"Because 601 contains no solvents that could potentially damage
the laminated glass."
Established in 1991, Allegheny Restoration & Builders Inc.
provides quality restoration services to historic structures in
West Virginia and around the country.
Find out more about Allegheny Restoration... |
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Feel free to give us
a call or drop us an email
if you have any questions. We're here to help! |
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Cheers,
John Stahl
Advanced Repair Technology, Inc. |
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