PREPARATION FOR PROTECTION FROM ICING AND FOR DEFROSTING, ADMIXTURE IN SUCH PREPARATION AND DE-FROSTING METHOD OR PROTECTION OF SURFACES FROM ICING

摘要

The anti-icing and thawing composition comprises inorganic substances with a low freezing point which include salts with a chlorine content such as NaCl, MgCl.sub.2. or CaCl 2, as a de-icing agent, and an additive which is a mixture of potassium carbonate and a water-soluble alkali metal silicate.