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Mr. Muscle

Mr Muscle
Mr Muscle Man(1).jpg
Product type Hard-surface cleaner
Owner S. C. Johnson & Son
Country United Kingdom
Introduced 1986
Markets Europe, Asia, Australia, Latin America and Africa
Previous owners Drackett
Registered as a trademark in United States
United Kingdom
Website Official site

Mr Muscle is a brand of hard-surface cleaners. It has been manufactured by S. C. Johnson & Son, since their purchase of Drackett from Bristol-Myers Squibb in October 1992. The original product — an aerosol oven cleaner — was developed at Drackett in 1986. The Mr Muscle product lineup has since expanded.

Oven cleaners at the time of introduction (1986) were generally similar to Reckitt & Colman's Easy-Off, the leading brand. A strong base, such as caustic soda, attacked grease by saponification. Surfactants attacked both grease and food spills. An abrasive may be present to help scour the oven. The product worked better if the oven was hot, although working in a fairly close space with hot oven cleaner fumes was unpleasant.

Appliance manufacturers offered continuous clean ovens, which had a special coating. Consumers, however, discovered these ovens were rarely cleaned by the process. Additionally, supplemental use of chemical cleaners destroyed the special coating that enabled continuous clean to function.

Manufacturers next offered self-cleaning ovens, which allows the oven to run at a special high temperature setting, effectively burning food residue to ash. Early self cleaning ovens weren't thoroughly satisfactory. At worst, they left carbon stuck to the oven surfaces. At best, they left carbon residue on the oven floor.

Industry legend has it that Drackett researchers, while trying to find a cold oven cleaner, found that ammonia would plasticize food spills, making them easier to remove. This took hours, however, during which period the ammonia would evaporate, halting the process. Looking for a less volatile chemical with the general characteristics of ammonia, they found that monoethanolamine had similar properties.

Monoethanolamine is a weak base, so it required the addition of caustic soda as well as surfactants and bentonite as a mild abrasive. Like most household cleaning aerosols, the propellant is a blend of propane and isobutane. Because the product required significant time to work properly, it was marketed as an overnight oven cleaner.


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