Archival Framing Glazing Types

Museum Glass

• Museum glass is the highest grade and most expensive conservation glass. It not only blocks out the UV light, but it appears as nearly invisible. It has almost no reflective quality. The object or picture can be seen with the best clarity and color achievable. Museum glass is particularly useful when using deep frames where the glass is not close to the object being framed as in shadow boxes or when using more than two mats.

Conservation Clear Glass

• Conservation clear glass has a typical reflective surface. While it transmits only 89 percent of light, it can be problematic in rooms that have a lot of windows or artificial light. It still allows for good clarity and color as long as strong light is not reflecting directly off the glass. It is more affordable than museum glass. Conservation clear glass is a good choice for pictures hanging in hallways or rooms without strong light sources.

Non-Glare Conservation Glass

• With this type of glass, reflection control is achieved by lightly etching one side of the glass. However, the color and clarity of the glass is slightly compromised. Many people do not mind the diminished clarity and are willing to accept it in exchange for the non-glare property. Despite this treatment, glare may completely obscure your image under certain light conditions. Non-glare glass is not an appropriate choice if you are using a deep frame or more than two mats.

Conservation Acrylic

• Conservation acrylic is a plastic alternative to glass and is available with the same archival properties as conservation glass. It is available in conservation clear acrylic or conservation non-glare acrylic. Conservation acrylic is lightweight and resistant to breaking, making it appropriate for framing large art or artwork that will hang in children's bedrooms or playrooms. It is also a good choice for artwork that will be shipped. If you are using clip frames it is a good option because its exposed edges are safer.