Agent for de-icing and protecting against icing-up

Agent for de-icing and protecting against icing-up, consisting essentially of (a) 40 to 65% by weight of a glycol selected from the group consisting of alkylene glycols having 2 to 3 carbon atoms and oxalkylene glycols having 4 to 6 carbon atoms;

• (b) 35 to 60% by weight of water;
• (c) 0.05 to 1.5% by weight of a thickener comprising cross-linked polyacrylates having a viscosity of 1,000 to 50,000 mPa.s in a 0.5% strength by weight aqueous solution at 20.degree. C. and a pH value of 7.5 to 10, and having a laminar flow behavior in a 0.1 to 1.5% strength by weight aqueous solution at +20.degree. C., 0.degree. C. and -10.degree. C. and a pH value of 7.5 tp 10, at a shear rate of up to at least 20,000 seconds.sup.-1 ;
• (d) 0.05 to 1% by weight of a water-insoluble component comprising a mixed-base mineral oil comprising paraffin hydrocarbons and naphthenes;
• (e) 0.05 to 1% by weight of a surface-active agent comprising alkali metal alkylarylsulfonates;
• (f) 0.01 to 1% by weight of at least one corrosion inhibitor;
• and (g) a quantity of at least one alkaline compound selected from the group consisting of alkali metal carbonates, bicarbonates or hydroxides and amines, such that the agent has a pH value of 7.5 to 10, the quantity of the components (a) and (b) in the agent being at least 94% by weight, relative to the weight of the agent.