Installing in harsh environments

Owned by James Eadie
Last updated: Jul 10, 2018
1 min read


When connecting data and power cables to radars in harsh or corrosive environments Navtech recommends the use of Chesterton© 740 as a product to protect the military specification connectors from corrosion.
This is a recommended best practice. Failure to apply the product could mean extra down time for radar and longer field time for engineers.
Over extended periods of exposure to the harsh environments that radars are often installed into the connectors can become corroded making their removal difficult, even causing damage to the radar in extreme cases.

Chesterton© 740 - Health & Safety


Care should be taken with solvent based aerosol sprays to avoid contact with the eyes or excessive inhalation of fumes. Especially in enclosed areas or poorly ventilated areas. Gloves and a mask and goggles should be worn.
A safety sheet is available for Chesterton© 740 at this weblink. – or visit www.chesterton.com and use the search facility to locate '740 rust guard'.

To apply Chesterton© 740 Aerosol product.

  • Attach the power and data connectors to the radar. Checking their surfaces are free from dirt, oil, grease and moisture.

  • If the radar has a vent plug attached temporarily cover or mask the vent so that when spraying the connectors no spray enters the vent plug.

  • Evenly apply the spray to the connectors. Observing the Health and Safety guidelines while doing so.

  • While drying residual product can be removed with a cloth. After drying a degreaser can be used to remove the product.

  • Remove the temporary vent plug mask/cover to allow the plug to breathe.



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