Abstract: A concentrated deicing and anti-icing composition which is diluted and is primarily used for aircraft surfaces being a mixture including a deicing and anti-icing base compound being propylene glycol and/or ethylene glycol in the overall range of 78.0% to 95.0% by weight of the deicing and anti-icing composition. A diluent is included in the form of water for use as a carrier fluid of the glycol in the overall range of 5.0% to 22.0% by weight of the deicing and anti-icing composition. A first nonionic surfactant agent is included having an HLB in the overall range of 4 to 17; and used in a weight proportion where the overall range is 1 ppm to 0.5% by weight of the deicing and anti-icing composition. A second nonionic surfactant agent is included having an HLB in the overall range of 5 to 18; and used in a weight proportion where the overall range is 1 ppm to 0.5% by weight of the deicing and anti-icing composition.

Abstract: A deicing and anti-icing composition for aircraft surfaces including a base compound being propylene glycol and/or ethylene glycol in the range of 35.0% to 80.0% by weight of the deicing and anti-icing composition. A diluent is included in the form of water for use as a carrier fluid for the glycol. A first molecular weight non-ionic surfactant agent is included having an HLB in the range of 4 to 17, and a second molecular weight non-ionic surfactant agent is included having an HLB in the range of 5 to 18. The second non-ionic surfactant agent has an HLB at least two (2) units higher than the first non-ionic surfactant agent. An emulsifier is included in the form of a polycarboxylate compound being in the range of 1 ppm to 0.5% by weight of the deicing and anti-icing composition. A pH control agent maintains the pH of the deicing and anti-icing composition between a 6 and 10 value.