Few products have such an interesting history as Fisher Space Pens.

In 1945 Paul Fisher, a scientist by training, was a man with a mission — ‘to develop and manufacture the world’s most dependable writing instruments.’ Fisher engineers spent thousands of hours and millions of dollars developing a pen superior in writing quality and style.

Recognition of their success came in 1967, when after 18 months of rigorous testing by NASA, the Fisher Space Pen was provided to astronauts for use in space. The selling point was that, unlike other ballpoint pens which rely on gravity to feed ink, the S pace Pens have a pressurised refill with a special ink that enables it to write over fingerprints, under water, upside down, on wet paper, in freezing cold and extreme heat and in the gravity-free vacuum of space.

Since 1967 both American astronauts and Russian Cosmonauts have used Fisher Space Pens on all manned space flights.

Superior performance on Earth as well as in space

The unique technology of Fisher Space Pens means that:

  • Fisher Space Pens will keep writing at any angle, including above your head
  • Fisher Space Pens write better than other pens on paper that is greasy or wet - they will even write under water
  • There is no leaking or oozing of ink with Fisher Space Pens
  • Ink in Fisher Space Pens lasts approximately three times longer than other ballpoint pens

The Fisher Space Pen sealed pressurised ink cartridge

Ultra-hard tungsten carbide ball
Thixotropic ink in a hermetically sealed and pressurised resevoir writes 3 times longer than ordinary pens
Sliding float separates ink from pressurised nitrogen
Gas plug

The Fisher Space Pen difference

Unlike ordinary ballpoint pens which rely on gravity to feed ink, the Fisher Space Pen’s replaceable cartridge is pressurised.

Ink is continuously fed to the tungsten carbide ball, allowing the user to write at any angle, even upside down. This advancement required the development of a special visco-elastic ink, with consistency similar to thick rubber cement. The ink flows as a result of the shearing action of the rolling ball in its socket, which liquefies the solid gel thixotropic ink, allowing the pen to write smoothly and dependably on most surfaces and even under water.

Evaporation, waste ink and back leakage are eliminated. Ink will not dry out for over 100 years! Writes at any angle at temperatures of –34°C to + 121 °C.

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