FW-1661 Leak Detector in convenient spray form is a highly effective solution for quickly and reliably identifying leaks in a wide range of installations. Its non-corrosive and non-flammable formula ensures safe use on steel, copper, and plastic pipes, as well as on valves, sleeves, heat exchangers, and even exhaust systems. Once applied, the product creates an active film that instantly reveals leak points through the formation of visible bubbles, making detection simple and precise. Thanks to its advanced ingredients, FW-1661 adheres perfectly even to vertical surfaces and complex piping systems, ensuring thorough inspection without dripping or loss of effectiveness. Designed for use with gas lines, compressed air systems, and other gaseous media, it provides dependable performance across an operating temperature range from -15°C to +70°C. FW-1661 is the ideal choice for professionals seeking a fast, safe, and efficient method to secure installations, minimize downtime, and maintain the highest standards of safety and reliability.