Concentrated coolant for heating and cooling systems based on propylene glycol and high performance FGA - Food Grade Approved inhibitors. Provides superior reliability, non-toxicity and long service life. Harmonized with modern environmental protection standards, biodegradable and does not pollute water. As such, it is suitable for use in the food and pharmaceutical industry. It contains no nitrates, phosphates, nor amines. After mixing with water, it can be used at a temperature interval between -50°C and + 140°C, depending on the concentration and operating conditions.