Inside Picture Framing #1: Glazing

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Blog entry by kewald posted 12-03-2008 06:48 PM 1164 reads 2 times favorited 4 comments Add to Favorites Watch
no previous part Part 1 of Inside Picture Framing series Part 2: Preservation »

When framing anything using glass or acrylic as the glazing, there should be an air gap of at least 1/8” between the art or object being framed and the inside surface of the glass. This is to prevent moisture, from the condensation that will almost certainly occur, from transferring to the framed item. A common way to accomplish this is to use two layers of matting between the glass and the artwork. Other ways include special plastic spacers or to use a secondary rabbet in the frame to support the artwork away from the glass.

When cleaning the outside of the glazing, NEVER SPRAY THE GLAZING AND NEVER USE A PRODUCT CONTAINING AMMONIA. Instead, spray a micro-fiber or soft cotton cloth with a 50-50 mixture of distilled water and rubbing alcohol, then use the cloth to wipe the glazing. Spraying the glazing can cause tiny amounts of moisture to enter the frame, potentially setting up conditions for mold to occur. Ammonia is alkaline and can cause damage to the framing contents.

-- Always do the Right Thing the Right Way the First Time - if you can figure out what that is! Ken, Spring Branch, TX

4 comments so far

View hObOmOnk's profile


1381 posts in 5586 days

#1 posted 12-03-2008 08:19 PM

Note: Ammonia is an alkali not an acid. Its at the opposite end of the pH scale.
Still, ammonia can be very reactive with wood, paper and some types of glue.
So can other common glass cleaning agents such as vinegar, which is an acid.

-- 温故知新

View kewald's profile


127 posts in 5040 days

#2 posted 12-04-2008 09:54 PM

Thanks for catching my error. The memory is not what it used to be.

-- Always do the Right Thing the Right Way the First Time - if you can figure out what that is! Ken, Spring Branch, TX

View lightweightladylefty's profile


3672 posts in 5171 days

#3 posted 01-08-2009 09:34 AM

Thanks for this very helpful information. I’ve been doing it wrong ;-(

-- Voltaire: “Those Who Can Make You Believe Absurdities, Can Make You Commit Atrocities” There are 112 genders (not including male and female)

View bigike's profile


4059 posts in 4747 days

#4 posted 01-21-2010 01:40 AM

hey thanks for the posting, i make alot of frames and would have never knew this untill something happened. I know exactly what your saying. THANKS AGAIN! :-)

-- Ike, Big Daddies Woodshop, http://[email protected]

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