INDIAN GEOGRAPHY

Detailed explanation-1: -Industrial Applications. Rosin is used in making cement varnishes, paints, sealing wax, adhesives, inks and some soaps.

Detailed explanation-2: -Resin. Many different kinds of resins may be used to create a varnish. Natural resins used for varnish include amber, kauri gum, dammar, copal, rosin (colophony or pine resin), sandarac, balsam, elemi, mastic, and shellac.

Detailed explanation-3: -Most varnishes are a blend of resin, drying oil, drier, and volatile solvent. When varnish dries, its solvent portion evaporates, and the remaining constituents oxidize or polymerize to form a durable transparent film. Varnishes provide protective coatings for wooden surfaces, paintings, and various decorative objects.

Detailed explanation-4: -Resins from different tree species vary in form and chemical structure enabling people to harness them for an equally varied number of uses. Common uses for resins include varnishes, adhesives or, for some of the particularly aromatic resins, incenses.

Detailed explanation-5: -Plant resins are valued for the production of varnishes, adhesives, and food glazing agents. They are also prized as raw materials for the synthesis of other organic compounds and provide constituents of incense and perfume.