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Home > Maintain Your Diving Equipment > A View on Faceplates

A View on Faceplates

April 13, 2022 Chris Gabel

A diver’s viewport of the world, right?  The faceplate is the visual part of any dive helmet that allows the diver to look out and the tender or dive supervisor to look in.  Without speaking, you can see the look of anger, terror, delight or disgust.

Scratched Dive Helmet Faceplate

We see them typically scratched up, cracked, or gouged.  Light scratches are fine and will fill with water when submerged rendering them almost invisible.  No a big deal. 

Most of the current manufacturers use polycarbonate products for their faceplates such as Lexan.  We’re going to talk about Lexan for the rest of this article.  Those of you still diving Mark V hats with glass lights/ports can ignore the rest.  Clean yours like glass, since it’s probably, you know, glass.

Keeping all that in mind, there are preventative maintenance tasks that you can do to prolong the useful life of your Lexan faceplate.

According to United States Plastic Corp:

Preventing Scratches

Mild Detergent

Wash Lexan™ Sheet with a mild soap or detergent (e.g., Joy** dishwashing liquid) and lukewarm water using a clean sponge or a soft cloth. Rinse well with clean water. Dry thoroughly with a chamois or moist cellulose sponge to prevent water spots. Do not scrub or use brushes on these products: their coating is UV-resistant, not mar-resistant.

Soft cloth for cleaning

Fresh paint splashes, grease, and smeared glazing compounds can be removed easily before drying by rubbing lightly with a grade of VM&P Naphtha or isopropyl. Afterward, a warm final wash should be made, using a mild soap or detergent solution and ending with a thorough rinsing with clean water.

Some Important “Don’ts”

  • DO NOT use abrasive or highly alkaline cleaners on Lexan™ sheet products.
  • DO NOT scrape Lexan™ sheet products with squeegees, razor blades or other sharp instruments.
  • DO NOT use gasoline, benzene, acetone, or carbon tetrachloride on Lexan™ sheet products.
  • DO NOT clean Lexan™ sheet products in direct sunlight or at elevated temperatures.

Compatible Cleaners for Lexan™ Sheet Products

The following cleaning agents have been found compatible with Lexan™ sheet. The manufacturer’s recommendations and instructions should be followed.

  • Joy**
  • Freon T.F.
  • Palmolive liquid***
  • Top Job**
  • VM&P grade Naphtha

So what’s that all mean?  The faster that you remove things like paint, epoxy, and grease, the better.  NEVER use gasoline on Lexan.  Start with a mild detergent like Dawn dishwashing liquid or equivalent soap.  Try to stay away from any of the specialty dish soaps that contain scents or abrasives.  NEVER use abrasives or sharp implements to clean/clear your Lexan faceplate.

Keeping it clean and projected is going to allow a longer service life for your faceplate.

Dive safe.

Please send any of your article ideas or questions to Chris at [email protected]

Filed Under: Maintain Your Diving Equipment Tagged With: commercial diving, dive equipment maintenance, diving helmet

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I'm beginning to see what true service professionals in our industry are all about. I have the impression that a crucial piece of life support equipment, truly an extension of my body, is being paid the attention to detail that it ABSOLUTELY requires.

Graig Gutowski
Ocean Eye, Inc. is a veteran-owned business serving professional divers. Dive equipment maintenance, products, manufacturing and consulting for commercial, government, public safety and military use.

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471 Fairview Chapel Road

Birdsboro, PA  19508

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