Janitorial & Sanitation Reference Library · Technical Reference

Glass and Surface Cleaners

Glass cleaners are fast-drying cleaners for glass, mirrors and shiny surfaces. This sheet compares ammoniated and ammonia-free formulas and lists the common causes of streaks.

Ref JS-0109Green Seal GS-37

Draft, open for review. Check every value against the governing standard and the manufacturer’s data before use.

What it is

Glass and surface cleaners are light-duty, low-residue cleaners. Most contain water, a small amount of surfactant and a fast-evaporating solvent such as isopropyl alcohol or a glycol ether. Some add ammonia to boost cleaning of greasy films. They are sold ready-to-use in trigger bottles, as concentrates, and in aerosol foams. Green Seal GS-37 includes a glass cleaner category for institutional products.

How to identify

The label names the product as a glass or glass-and-surface cleaner and states whether it contains ammonia. The SDS lists the solvent and any ammonia or ammonium hydroxide in section 3. Aerosol foams cling to vertical glass and are often used on mirrors and windows in public restrooms.

Ammoniated vs ammonia-free

Feature	Ammoniated	Ammonia-free
Cleaning power on greasy films	Stronger	Good for routine soil
Odor	Sharp ammonia odor	Mild or fragranced
Window film and tint	Many film makers advise against it	Generally preferred; check the film maker
Electronics screens	Not recommended	Use only if the device maker allows; many specify their own cleaner
Mixing hazard	Never mix with bleach; produces toxic chloramine gas	Still do not mix with other chemicals
Typical use	Exterior glass, kitchens, heavy film	Interior glass, mirrors, plastics, tinted glass

Streak causes and fixes

Cause	Fix
Too much product	Use a light mist
Dirty or linty cloth	Use a clean, dry microfiber cloth
Fabric softener in microfiber	Wash microfiber without softener
Glass in direct hot sun	Clean in shade or when cooler
Hard water in diluted concentrate	Dilute with softened or deionized water if the label allows
Old residue from another product	Clean first with a neutral cleaner, rinse, then use glass cleaner

Key points

Glass cleaner is not a disinfectant unless it carries an EPA registration number. Restroom mirrors and touch points may need a separate disinfecting step.
Use squeegees and a washing solution for large windows, not trigger-spray cleaner.
Plastic, acrylic and polycarbonate can craze from some solvents. Use a cleaner labeled for plastics.

Common mistakes

Using ammoniated cleaner on tinted car or building windows.
Using glass cleaner in the same area as a bleach product.
Wiping with a dirty cloth and blaming the cleaner for streaks.
Spraying directly onto electronic screens.

Governing standards: Green Seal GS-37; product label and SDS; window film and device manufacturer care instructions.

Reference only. Verify against the current governing code or standard, the manufacturer's data and the project documents before use. Apps for Distributors disclaims liability arising from reliance on this reference.

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