A laboratory test showing WD-40's patented 'Smart Straw' advantage. The incredible hand Smart Straw delivery system is unique to WD-40. The clever straw is attached to the can so can never be lost or dislodge during use, and it allows a user to spray product both wide for general use and narrow for precise use, by simply raising or lowering the straw
This test shows how to easily identify if a spray cans propellant is Butane (CO2) or Liquid Petroleum Gas (LPG) WD-40 uses a CO2 propellant which delivers the product without change of temperature, is classified non-flammable and takes up far less space in the can, so delivers more 'usable content'!
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