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Puretone Ltd are British manufacturers of quality hearing protection plugs, hearing aids, tinnitus management systems, in-ear monitors for musicians, earmoulds, swimplugs, and covert equipment for surveillance purposes. Suppliers of audiological, ERA equipment and accessories. Established since 1976.



Puretone Hydrophobic Protection

As part of the continual development and improvement program; Puretone have now installed new state-of-the-art equipment at the Rochester factory, applying a hydrophobic nano coating, called Water-ShieldTM.

The Water-ShieldTM bio-compatible coating is a highly durable “Teflon-like” amorphous carbon polymer coating that protects from accidental liquid exposure.

Tests have shown that a hydrophobic coating can reduce water ingress by 3x to 5x over an unprotected product, when exposed to simulated rain-chamber conditions.

Water-ShieldTM is created by the plasma decomposition of a vapor containing “Teflon-like” material. The resulting film is a cross-linked polymer which creates a hydrophobic “Nook and Cranny” seal, i.e. it prevents fluids from entering the small openings in portable electronic cases. It also permeates into the interior through any opening.

The Water-ShieldTM process is created at reduced pressures of deep outer-space, at an equivalent altitude of 200,000 ft above sea level, so that the carbon atoms can diffuse deep into the product, resulting in a hydrophobic coating over every exposed surface.

Water-ShieldTM is applied at nanometre film thickness, only about 1/2000th the thickness of an average human hair, and is completely invisible to the naked eye.

Additional Benefits:
  1. Greater protection from water
  2. Improves reliability
  3. More hygienic
  4. Increases device life

Please note: not all products to be included.

NOTE: AVOID contact with Alcohols & Solvents.
They will degrade the coating and the devices.

Registered Offices: Puretone Ltd, 9-10 Henley Business Park, Trident Close, Medway City Estate, Rochester, Kent. ME2 4FR. United Kingdom.
Company Registration Number: 1271080 (Incorporated in England & Wales)
VAT Reg Number: GB 293 7008 46

*Please Note* All calls are recorded for training purposes

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