A waterproof pen can write on wet surfaces and be submerged in water without damage. They are made of plastic, rubber or chrome with non-rusting metal alloys. Pigment ink is used to prevent dissolving in water. They are useful for those who work in damp environments or outdoors in rainy or humid conditions.
A waterproof pen is a pen that can be submerged in water and still function without being damaged. A waterproof pen can also, in many cases, write on damp or wet surfaces due to the nature of the ink in the pen. Waterproof pens can be designed in a variety of ways and are usually constructed of relatively inexpensive materials, such as plastic, rubber, or chrome. The ink used tends to be more important due to its waterproof function, as many types of ink will not perform well when exposed to water. The ink used in waterproof pens must be able to produce noticeable marks even when wet.
We tend to use a waterproof pen for one of two main reasons. Either she works in a damp environment and her pen needs to work properly when wet, or she needs to write on damp surfaces without worrying about excessive ink flow. People who work outdoors in rainy or humid conditions often benefit from using waterproof pens.
A waterproof pen can be designed in many ways. Typically, there is no easy way to distinguish a waterproof pen from any other pen, as they are designed to look essentially the same. Waterproof pens can be designed as click pens or as cap pens, just like other pens. However, it is rare to see a waterproof fountain pen as the ink flows too freely and would likely spread in any body of water.
The materials used in making waterproof pens are often different from those used in regular pens. They are often made or lined with rubber or plastic to prevent water from reaching parts that could rust or otherwise be damaged. All metal parts, such as the body or internal springs, are made of non-rusting metal alloys. In some cases, especially with capped pens, there is a form of seal that prevents water from reaching the pen’s ink source.
The ink in a waterproof pen is of particular importance as the ink in particular must be conserved and must remain usable in wet conditions. The ink, usually stored in a special pressurized cartridge, is usually high quality pigment ink. Most pens use simple dye ink, which dissolves easily in water and doesn’t hold up in humid conditions. Pigmented ink, unlike dye ink, does not dissolve completely; parts of it remain solid and mix with the paper. This prevents it from dissolving or flowing when exposed to water.
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