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Rub with a mild cleanser (such as baking soda) and a felt pad.Always use coasters under flower pots, lamp bases or any object that might stain the marble surface. Rust stains on marble floors are commonly caused by contact with ferrous (iron/steel) objects or steel wool.When using caustic, toxic, aromatic or flammable cleaning solutions, be certain to provide for adequate ventilation.NOTE: The paste may be allowed to remain on the stain for several days, if necessary. Wash area thoroughly with clear water and allow to dry. Remove with a wooden scraper and repeat if necessary. Apply this paste to the stain and allow to harden. Make a paste by combining 7 parts lint-free glycerin, 1 part sodium citrate crystals (available from drug store), 6 parts lukewarm water, and enough Whiting to create a thick paste. Hard Surface Floors Brick, Concrete, Stone/masonry (Except Marble) When using caustic, toxic, aromatic or flammable cleaning solutions, be certain to provide for adequate venti lation.Be careful any time a commercial product or combination of cleaning supplies are used.If stain remains, try a commercial rust/iron remover.If stain persists, let dry and repeat Method #1.Apply the solution with a toothbrush, agitating lightly. Mix a solution of 1 tablespoons oxalic acid and 1 cup of warm water.When using caustic or commercial cleaning solutions, be certain to provide for adequate ventilation.Ĭarpet Blended Fibers, Fur, Hemp, Jute, Natural Fibers, Synthetic Fibers, Wool.Be sure to store and dispose of products/cans/containers as recommended.Always pretest each cleaning agent on an inconspicuous area first to determine colorfastness.Be careful any time a commercial product or combination” of cleaning supplies are used.Do not use any products or procedures prohibited by the care label. Always read the care label before trying any stain removal method.For specialty fabrics (washable silk, washable wool, suede-like and silk-like fabrics), see index. A commercial color remover (available in grocery stores and drug stores) may also be used. NOTE: For rusty discoloration on a load of white items, add detergent and one cup of oxygen bleach, and soak clothes for 10-15 minutes. Rust removers are available generally in appliance and hardware stores. Apply a commercial rust remover carefully, following manufacturer’s directions.If it is safe to boil the fabric (generally some cottons and linens), boil stained article in a solution containing 4 teaspoons of cream of tartar to 1 pint of water.Sprinkle salt on the stain, squeeze lemon juice on it and spread in the sun to dry.If the garment’s colorfastness is questionable, pretest the following rust removal products on a concealed area first. This does happen with sanding or dry ice blasting.Rust stains may be very difficult to remove. That’s also the reason why the removal of rust with a laser is very suitable for locations where particles can’t fly around and pollute the environment. Typically, the particles will jump 10-20 cm and will then fall down. With a very thin rust layer, the rust will already have evaporated before this effect can even take place, but with thicker layers of pollution and thick chunks of rust, this effect will be present.ĭon’t worry about these particles flying around like it happens when deburring. A very thin layer arises between the metal surface and the rust layer that quickly expands and pushes the rust layer away. This vibration can be compared to a mini crowbar and breaks off all the larger pieces of rust from the bottom layer. This is actually just a strong vibration as a result of the local heat and the temperature difference with the direct environment. The quick heating of the rust layer has also a second interesting effect. This quick and intense heating has two effects:
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Because of the short but highly focused laser pulses, the temperature of the rust layer quickly becomes very high. The beam moves quickly back and forth and covers a width of 5 to 15 cm. To remove rust with laser beams, a laser gun is aimed at the rust layer and slowly passes over the entire surface. For instance, you can fully strip a car down to the bare metal in only an hour. With the removal of rust with laser cleaning, no great forces are developed that chase the loosened dirt into the environment, but it’s also possible to clean large surfaces in a short period of time. These techniques are either very time consuming or have a big impact on the environment. The traditional techniques to remove rust are sanding, chemical treatment, sandblasting, dry ice blasting, etc. Rust is a thin layer of oxidized material that can arise on the outside of a metal surface. One of the most important applications of laser cleaning is the removal of rust.