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Rosin (/ ˈ r ɒ z ɪ n /), also known as colophony or Greek pitch (Latin: pix graeca), is a solid form of resin obtained from pine trees and other plants, mostly conifers, primarily through heating fresh liquid resin to vaporize the volatile liquid terpene components. Used widely in various industries and arts, rosin appears as a semi ...
Pitch produced from petroleum may be called bitumen or asphalt, while plant-derived pitch, a resin, is known as rosin in its solid form. Tar is sometimes used interchangeably with pitch, but generally refers to a more liquid substance derived from coal production, including coal tar , or from plants, as in pine tar .
Cutler's resin, also known as cutler's pitch, is a waterproof adhesive used to secure a blade or device to a handle. It is made by including wax when making a pine pitch glue. Cutler's resin commonly consists of pine pitch, beeswax and/or carnauba wax, [1] and usually employs a filler like charcoal, sawdust and/or animal dung to aid with the ...
The word resin comes from French resine, from Latin resina "resin", which either derives from or is a cognate of the Greek ῥητίνη rhētínē "resin of the pine", of unknown earlier origin, though probably non-Indo-European. [10] [11]
Pine resin (sap) has been used by various tribes to waterproof baskets, pails, and boats. The Ojibwe also used pine resin to successfully treat infections and even gangrenous wounds, [39] because pine resin apparently has a number of quite efficient antimicrobials. Generally, a wet pulp from the inner bark, or pine tar mixed with beeswax or ...
The refined resin is sometimes available as a translucent solid and is then "run" by cooking or melting it in a pot over heat without solvents. The thickened oil and prepared resin are then cooked together and thinned with turpentine (away from open flame) into a brushable solution. The ingredients and processes of violin varnish are very ...
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The most important tree for use in resin extraction is the black pine (Pinus nigra), which has the greatest resin content of all of the European coniferous trees, and it was even used as early as by the Romans for this very purpose. [2] These trees are generally best tapped for their resin between the ages of 90 and 120 years old.