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Memorial Plaques - A Tutorial - Materials

 

General

Bronze memorial plaques are manufactured using sand molds in a state-of-the-art foundry from raw ingot alloyed in the following materials:

Equivalent to Copper Development
Association Alloy C92200;
88% copper, 6% tin, 4% zinc, 2% lead.

Helpful Hints

  • Bronze plaques are the choice for interior as well as exterior applications. Although the finish of bronze will naturally patina over time, the material itself will not deteriorate. Objects made from bronze have been found submerged in seawater for over 3000 years still in excellent condition.

  • The weight of a bronze plaque may be roughly estimated by calculating the plaque's volume in inches (height x width x depth) x .31. For most smaller plaques (under 36" x 30") allow .25" as the approximate depth. Use .375" for plaques over 36" x 30".

    Example: For a 36" x 24" plaque calculate 36" x 24" x .25" = 216 cu. inches x .31 = 66.96. The plaque's estimated weight would be 67 lbs.

 

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