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Petroleum Jelly
Some available grades of petroleum Jelly :
In Skin and hair care , white petroleum jelly is used for Preventing moisture loss , Hair grooming , Skin lubrication. This is the most common grade of jelly and is widely used in cosmetic and personal care products. It is highly refined and purified to remove impurities, color, and odor, resulting in a white or off-white color.
Yellow Petroleum Jelly is less refined than white petroleum jelly and may contain some impurities, resulting in a yellowish color. Yellow petroleum jelly is commonly used in industrial applications, such as a lubricant for machinery, rust prevention, and protection of metal surfaces.
Medical Grade Petroleum Jellyis highly purified and meets specific standards for use in medical and pharmaceutical applications. It is often used as a lubricant for medical equipment, as an ingredient in medicinal products, and for wound care.
Varnish
Varnish is a combination of a drying oil, a resin, and a thinner or solvent plus a metal drier to accelerate the drying. After being applied, the film-forming substances in varnishes either harden directly, as soon as the solvent has fully evaporated, or harden after evaporation of the solvent through curing processes. There are many different types of drying oils, including linseed oil, tung oil, and walnut oil that are used in varnishes and the resins can be amber, kauri gum, dammar, copal, rosin (colophony or pine resin), sandarac, balsam, elemi, mastic, and shellac. Varnish also can be created from synthetic resins such as acrylic, alkyd, or polyurethane, and Epoxy. Solvents that are used in varnishes mostly are white spirit, paint thinner, and mineral spirit.