MPT (MPT319 Twelve Concentrated Lubricant and Penetrant - 12 oz. Aerosol Will not freeze in temperatures down to 60F below zero; apply to door locks and equipment controls to prevent freezing Apply to outdoor locks and equipment during the hot summer months for long-lasting lubrication that will not evaporate Apply to indoor equipment and mechanical devices for long-lasting protection Easy to use and lengthens maintenance intervals; will never gum or cake Leaves behind a protective film to reduce heat and friction