Oblong Convex Glass#900L

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Oblong Convex Glass on this page only - to order a Frame & Glass together select your frame first.
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  • Oblong Convex Glass
  • Oblong Convex glass also known as Double Boiler Convex Glass
  • Oblong Convex Glass - or Double Boiler Convex Glass
  • Convex Glass - Side View
  • Convex Glass - Side View
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Product Description

 We have been bending and fitting antique replica convex glass (also known as bubble glass or domed glass) since the early 1970s, and we currently stock most antique sizes and shapes along with their modern equivalents. Although oblong convex glass is most popular with our Vintage Collection of frames, our convex bubble glass will fit any frame we make.

 Measuring Convex Glass

  Oblong Convex bubble glass is measured just like oblong flat glass, measuring length and width directly across the glass (not around the bend of the glass). Oblong convex glass generally has a depth of between 3/4" to 1" although deeper bends are possible. The most popular sizes often seem unusual such as the Oval 13 1/2" x 19 5/8". Many people are concerned that these odd sizes are no longer available or will require custom bending fees. However, we stock many of these unusual antique sizes, and most often no custom set up fees are required.

Although we stock 15 standard sizes of oval convex glass,and offer custom convex glass for it, we only carry one size of oblong convex glass 


 Although oval picture frames make up less than 5% of all picture frames produced today, this has not always been the case. Over half of the picture frames produced in America by some the largest picture frame factories in the late 1800's up to about 1940 were oval picture frames, round picture frames, or antique octagon picture frames. A large percentage of these frames were used to frame family portraits with convex glass. Today many attics and basements are home to these family heirlooms framed in antique frames and often broken convex bubble glass.

Victorian Frame Company has a long history of bending convex glass replacements for these images. Our glass bending started in the early 1970’s and today we continue to manufacture convex glass along with a unique collection of antique replica frames. See our Vintage Collection of frames.

 Uses of Convex Glass

Most oblong convex glass is used to cover antique portraits in which the photographs themselves were also convex. We produce convex glass to fit our own antique replica frames, and also can supply an oblong convex glass replacement to fit actual antique frames. We also regularly produce convex glass replacements to replace broken pieces in clocks, gauges and other instruments.

 The Bending Process

 Convex Glass is made by laying flat glass into frame molds and heating the glass to temperatures that allow the glass to slump. Longer heat creates a deeper bend.

  Deep Convex Glass or Acrylic Domes?

 Oblong convex glass normally has a bend of about 3/4" to 1”. If you are displaying an item that has more depth than a photo or canvas, then you may consider using our oval acrylic domes which fit all our frames and range in depth from 2.5" up to 7". To view our acrylic domes click here.


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Additional Information

Convex Glass
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1 Review

  • 5
    convex glass purchase

    Posted by Cathie on 31st Aug 2014

    The quality is excellent and the glass fit perfectly in my own frame. Very happy with my purchase and so very glad to have found a replacement glass for a very old framed picture that I had in my possession. Thanks so much!

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