Granville Sub Zero De-Icer Granville Sub Zero De-Icer has been specially formulated to effectively defrost windows mirrors and door locks preventing freezing during winter conditions. Benefits: * Cost effective trigger action * Fast Acting at temperatures as low as -15°C Directions For Use: Remove excessive snow and ice deposits. Hold trigger spray upright 10-15cm from the surface. Spray windscreen from the top downwards working across the glass. When the ice has melted operate windscreen wipers to remove the excess. Specification Information: Appearance Blue translucent liquid Odour Characteristic Solubility Soluble in water Flashpoint >100°C