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  2. How to Remove Almost Every Type of Stain - AOL

    www.aol.com/lifestyle/remove-almost-every-type...

    Removing stains takes a bit of elbow grease, plus one or more of the following best stain removers: Water Your first go-to should always be water as it dilutes stains and helps them fade.

  3. Descaling agent - Wikipedia

    en.wikipedia.org/wiki/Descaling_agent

    Limescale build-up inside a pipe reduces both liquid flow and thermal conduction from the pipe, so will reduce thermal efficiency when used as a heat exchanger.. A descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles.

  4. Stain removal - Wikipedia

    en.wikipedia.org/wiki/Stain_removal

    Stain removal is the process of removing a mark or spot left by one substance on a specific surface like a fabric. A solvent or detergent is generally used to conduct stain removal and many of these are available over the counter.

  5. Calcium Lime Rust - Wikipedia

    en.wikipedia.org/wiki/Calcium_Lime_Rust

    Calcium Lime Rust, more commonly known as CLR, is a household cleaning product used for dissolving stains, such as calcium, lime, and iron oxide deposits. Ingredients [ edit ]

  6. Pickling (metal) - Wikipedia

    en.wikipedia.org/wiki/Pickling_(metal)

    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.

  7. Limescale - Wikipedia

    en.wikipedia.org/wiki/Limescale

    Limescale is a hard, chalky deposit, consisting mainly of calcium carbonate (CaCO 3). It often builds up inside kettles , boilers , and pipework, especially that for hot water. It is also often found as a similar deposit on the inner surfaces of old pipes and other surfaces where hard water has flowed.

  8. Ultrasonic cleaning - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_cleaning

    The intention is to thoroughly remove all traces of contamination tightly adhering or embedded onto solid surfaces. Water or other solvents can be used, depending on the type of contamination and the workpiece. Contaminants can include dust, dirt, oil, pigments, rust, grease, algae, fungus, bacteria, lime scale, polishing compounds, flux agents ...

  9. Shoe polish - Wikipedia

    en.wikipedia.org/wiki/Shoe_polish

    An open can of shoe polish with a side-mounted opening mechanism visible at the top of the photo. Shoe polish, also known as boot polish and shoeshine, is a waxy paste, cream, or liquid that is used to polish, shine, and waterproof leather shoes or boots to extend the footwear's lifespan and restore its appearance.