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Care and Cleaning of Low E Glass | Custom Glass Products

Technical: Care & Cleaning of Low E Glass


(Includes ComfortPlus, EnergyTech, EVantage, SolTech and Sunergy range of products).

These products have a very thin coating on the interior glass surface. It is this hard and durable coating which gives the products improved thermal insulation and solar control performance compared to ordinary clear glass. The coated surface of Low Emissivity glass cleans differently to ordinary glass and these guidelines are recommended for the most appropriate hand cleaning results


Hand cleaning of the coated (interior) surface, to visibly remove accumulated dust or fingerprints, can be accomplished using a number of different glass cleaning products.

The exterior surface of the glass is not coated and so can be cleaned in the same way as ordinary glass.


  • Windex® Multi-Surface Cleaner (colourless liquid) produced by SC Johnson & Son Pty. Ltd.
  • A mixture of one part vinegar with ten parts water.
  • In addition to the above, commercially available vinegar-based glass cleaners have generally demonstrated an ability to provide a clean, streak free glass surface. The use of ammonia-based and alcohol-based glass cleaners is not recommended as these products tend to leave visible streaks.


  • It is recommended that jewellery and watches be removed prior to cleaning and that gloves be worn.
  • Flood the glass surface with the spray-on cleaning solution or with a cloth saturated with the cleaning solution.
    Be generous with the amount of solution applied.
  • Scrub the wet surface with a clean, lint-free towel or cloth.
  • Wipe dry with a dry, clean, lint-free towel or cloth. Do not use a squeegee on the coated (interior) surface.
  • To prevent streaking, stop wiping when the glass is almost dry and there is a uniform film of moisture left on the glass surface. The film will quickly evaporate leaving a clean surface.


Occasionally spot cleaning may be required to remove stubborn dirt or foreign materials which adhere to the surface. Spot cleaning products work to remove
markings from grease, oil, tape adhesive and crayons or other waxy materials, as well as paint and rub-off marks from plastics.


  • Acetone (solvent available from hardware stores) must be used strictly in accordance with the manufacturer’s recommendations and warnings.


  • Apply a small quantity of the cleaner listed above to a clean, wet cloth or towel.
  • Rub on areas of glass needing spot cleaning.
  • Wipe clean using a dry, clean, lint-free towel or cloth followed by a routine cleaning procedure.


Do not use razor blades, steel wool, scouring bristles or other metallic or abrasive objects on the coated surface. If metallic objects contact the coated surface, a thin layer of metal removed from the object may be deposited onto the surface which results in a discoloured stain which is difficult to remove using normal cleaning procedures.


  • Hydrochloric Acid (available from hardware stores). Special care should be exercised with this product and gloves and protective eyewear should be worn when handling.


  • Carefully follow the chemical manufacturer’s use and safety instructions. If there are none, pick a brand that has instructions and safety precautions or contact the manufacturer before use or application.
  • Apply a small quantity of the specialised cleaning product listed above to a wet, clean cloth or towel. A cotton bud may be used for thin line type marks.
  • Rub on areas of glass needing cleaning.
  • Wipe clean using a dry, clean lint-free towel or cloth followed by a routine cleaning procedure.
  • Ensure that the cleaner does not come into contact with framing materials.


This information is offered as a general guide only and specific advice should always be sought from a reputable glazier or professional window cleaner before undertaking any cleaning. This guidance does not preclude the use of other methods, materials or equipment, however the user should undertake careful evaluation and make suitable enquiries as to the suitability of alternative methods, materials or equipment, before using them.

All reasonable care has been taken in producing this document, however Chevron Glass makes no representations or warranties, express or implied, as to the accuracy, reliability or completeness of, and disclaims all liability, direct or indirect and whether or not arising out of the negligence, default or lack of care of Chevron Glass for any loss or damage (whether foreseeable or not) suffered by the recipient or any other person arising out of, or in connection with, any use of reliance by any of them on this document. Liability which cannot legally be excluded is limited to the maximum extent possible.

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