- How does Rustdoctor™ work?
- Do parts have to be completely clean before immersion?
- Will Rustdoctor™ remove bluing and other oxide finishes?
- Can I clean brass, copper and aluminum with Rustdoctor™?
- What temperatures can Rustdoctor™ operate in?
- I get a black film on some parts after using Rustdoctor™.
What is it and how do I remove it?
- Can I spray Rustdoctor™ on the rusted area?
- How can I use it on a surface that is to large to soak?
- How long does Rustdoctor™ last?
- How do I know when the bath is spent?
- How do I dispose of the spent solution?
- In what size containers can I buy Rustdoctor™?
- Do I need any protective safety equipment when using Rustdoctor™?
Rustdoctor™ works
through selective chelation. This is a process in which a large synthetic
molecule forms a bond with metals and holds them in solution. Most chelating
agents bind many different metals. The active ingredient in
Rustdoctor™ bonds to
iron exclusively. It can remove iron from iron oxide but is too weak to remove iron
from steel where the iron is held much more strongly.
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No. Rustdoctor™ has
detergents which penetrate oils and dirt. However, surface contaminants do slow the
process. The soils must be penetrated before
Rustdoctor™ can come in
contact with the rust underneath. Soil residue will also shorten the life of
Rustdoctor™. Heavy
greases and cosmoline should be removed prior to de-rusting.
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Yes. Rustdoctor™ will
remove these in about 30 minutes. Anodizing will not be removed. Powder coating and
paint will not be removed as long as the paints do not contain oxides.
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No. Rustdoctor™ will
neither clean nor damage any of these metals. Also, it will not harm rubber, plastic,
clothing or glass.
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Rustdoctor™ should be
used between 60°F and 140°F to work properly.
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The black is carbon from the steel. Generally high carbon steel is used in making
items that are flexible (e.g. springs, saw blades). High carbon steel and tool alloy
steel items, when derusted, will have a darker appearance. Much of the carbon can be
removed simply by wiping with a cloth.
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No, Rustdoctor™ only
works in its complete liquid form. When sprayed on a surface, the water in the
solution will evaporate before de-rusting can be completed. It can however be
sprayed on as a rust preventative.
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Soak a sponge with
Rustdoctor™. Then place
it over the rusted area. Cover the sponge with plastic wrap and tape the wrap down
to prevent moisture from escaping. Remove in 24 hours and rinse the area with water.
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One gallon of Rustdoctor™ will remove the rust from 300 pounds of moderately rusted steel. If any of the bath evaporates, simply replace it with fresh tap water.
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The bath will turn completely black and will not perform.
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When Rustdoctor™ is
spent, only the iron content of the solution will dictate how it can be disposed
of. In most cases it can be dumped into the city sewer.
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It comes in quarts, gallons, 5 gallon pails, 55 gallon drums and 275 gallon totes.
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No. Rustdoctor™ is a
non-toxic, pH balanced chemical. It is non-corrosive, safe on skin, has no fumes or
bad odors, non-flammable, biodegradable, water soluble, and contains no acids, bases,
solvents or other toxic ingredients.
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