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| Cellulose acetate
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Paint and varnish binder, made from a sulfuric or acetic reaction with cellulose fibers |
| Cellulose insulation
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A type of insulation composed of waste newspaper, cardboard, or other forms of waste paper. |
| Cellulose nitrate
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Paint or varnish binder, also called pyroxylin or nitrocellulose, which is composed from a nitric acid reaction with cellulose fibers. |
| Celsius
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A temperature scale based on the freezing (0 degrees) and boiling (100 degrees) points of water. Abbreviated as C in second and subsequent references in text. Formerly known as Centigrade. To convert Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 3(2) For example. |
| Cement
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A masonry adhesive material purchased in the form of pulverized powder. |
| Cement board
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1Ú2 inch thick sheets of hard material composed of cement and fiberglass, which is used as a backing for ceramic tile or as an underlayment in showers, wherever a moisture barrier is needed, because it is waterproof. Cement board is installed much like drywall; the 3 x 5 foot sheets are cut to size and fastened using drywall screws. Joints are sealed with drywall joint tape and thinset mortar or the tile adhesive. Wonder Board and Durock are the two most well-known brands, with wonder board being used generically. Also called "glass mesh mortar unit." |
| Cement board, 1/2-inch
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| Cement body tile
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Tiles with a structure made from a mixture of sand, gravel and water to form concrete. |
| Cement brick
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Cement and sand, rectangular shaped building block, which cannot be used where acids or alkaline extremes might touch the brick. |
| Cement grout
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A cementious mixture of portland cement, sand or other ingredients and water, to produce a water resistant, uniformly colored material used to fill the joints between tile units. |
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