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Windex Logo.png
Product type Window cleaner
Country United States
Introduced 1933
Markets United States, Canada, Germany

Windex is a glass and hard-surface cleaner manufactured since 1933. S. C. Johnson acquired Windex in 1993 and has been manufacturing it since. The product was reformulated in 2006.[1]

The original Windex was colored a light, translucent shade of blue.[citation needed] Today there are varieties marketed in several colors (ocean fresh blue, sunshine lemon and citrus orange) and fragrances (spring bouquet, ocean mist, lavender and tea tree), with a number of additives such as vinegar, lemon, lime, or orange juice.

When Windex was invented in 1933 by Harry R. Drackett, it was almost 100% solvent. It was highly flammable and had to be sold in metal cans.[citation needed] When modern surfactants were introduced after World War II, the product was reformulated.

Windex was a 5% ammonia solution in 1989.[2]

The Sam Wise patent[clarification needed] #3,463,735 lists example formulae, one of which is 4.0% isopropyl alcohol (a highly volatile solvent) 1% ethylene glycol monobutyl ether (a less volatile solvent), 0.1% sodium lauryl sulfate (a surfactant), 0.01% tetrasodium pyrophosphate (a water softener), 0.05% of 28% ammonia, 1% of a dye solution, and 0.01% perfume. This formula was not only less expensive to manufacture, but allowed the product to be packaged in glass bottles and dispensed with a plastic sprayer.

The popularity of Windex in the U.S. led to the generic use of the trademark for similar products, including those marketed under different brands Window Cleaner or glass cleaner.

It has been discovered that using newspaper in place of standard papertowels leaves glass even cleaner, when scrubbed with Windex.


  1. ^ S.C. Johnson & Son (January 5, 2006). "SC Johnson Honored With Presidential Award for Corporate Leadership in Ceremony at the White House" (Press release). S.C. Johnson & Son. Retrieved July 19, 2013. 
  2. ^ Lewis, Peter H. (August 8, 1989). "PERSONAL COMPUTERS; Cleaning Screens Safely". The New York Times. p. 9. 

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