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Brasso has also been used to polish out scratches in plastics: It has been used to polish CDs, DVDs, screens, and pools to repair scratches. It is a mild solvent and an extremely fine abrasive, so when applied to the reflective surface of the disc and rubbed radially (in straight lines between the edge and centre), it can smooth scratches and reduce their effect.
Tobacco: tar in the smoke from tobacco products (and also smokeless tobacco products) tends to form a yellow-brown-black stain around the necks of the teeth above the gumline. [9] The nicotine and tar in tobacco, combined with oxygen, turns yellow and over time will absorb into the pores of enamel and stain the teeth yellow.
Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminium alloys. [1] A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities.
These tools work “by delivering low-level electric currents to the skin and muscles of the face,” says Dr. Geeta Yadav, a board-certified dermatologist in Toronto, Canada.
One of the first steps in caring for iron is to examine them and determine their state, determine if they are corroding, and consider options for treatment. [1] The prevention and removal of surface dirt and corrosion products are some of the primary concerns of conservator-restorers when dealing with iron or steel objects, including nickel ...
A cryogenic treatment is the process of treating workpieces to cryogenic temperatures (typically around -300°F / -184°C, or as low as −190 °C (−310 °F)) in order to remove residual stresses and improve wear resistance in steels and other metal alloys, such as aluminum.
These patents cover the treatment of surfaces to stabilize heavy metals. This includes a paint stripper additive, a paint that can support the non-hazardous removal of lead-based paint, and a QuickCoat paint that provides a latex barrier for non-removal purposes.
Cryogenic hardening is a cryogenic treatment process where the material is cooled to approximately −185 °C (−301 °F), typically using liquid nitrogen.It can have a profound effect on the mechanical properties of certain steels, provided their composition and prior heat treatment are such that they retain some austenite at room temperature.