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Another unusual method of cleaning frescoes is with the use of specific types of bacteria to remove inorganic crusts and animal glues from frescoes. Because bacteria can produce a whole host of enzymes they can deal with complex cleaning problems, metabolising organic and inorganic matter into hydrogen sulfide, molecular nitrogen or carbon dioxide.
This wax resin is a better substitute to wax-resins because wax collects dust and dirt and make the fill noticeable. Polyester resin and epoxies are toxic and noxious. The wax-resin is fast and easy to use, making it a possible new alternative to fill materials in the conservation field.
The wax encaustic painting technique was described by the Roman scholar Pliny the Elder in his Natural History from the 1st Century AD. [5] The oldest surviving encaustic panel paintings are the Romano-Egyptian Fayum mummy portraits from Egypt , around 100–300 AD, [ 6 ] but it was a very common technique in ancient Greek and Roman painting.
Show Some Love to Your Toilet. Doyle James, president of Mr. Rooter Plumbing, a Neighborly company, explains how to care for your potty: “For a squeaky clean toilet, mix 1 cup of baking soda ...
Methyl cellulose can be employed as a mild glue which can be washed away with water. This may be used in the fixing of delicate pieces of art as well as in book conservation to loosen and clean off old glue from spines and bookboards. [citation needed] Methyl cellulose is the main ingredient in many wallpaper pastes.
Glue is kept hot in a glue pot, which may be an electric unit built for the purpose, a double boiler, or simply a saucepan or crock pot to provide a warm water bath for the container of glue. Most animal glues are soluble in water, useful for joints which may at some time need to be separated. [21]
Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).
Most glue sticks are designed to glue paper and card stock together and are not as strong as some liquid-based variants. They can be used for craft and design, office use, and at school. There are several varieties: permanent,washable, acid-free,non-toxic, solvent-free, and dyed (e.g. to see where the glue is being applied).