This Scotch 1605 Dehumidifying Spray is made by the well-known 3M brand. It penetrates and displaces moisture and also defrosts frozen sections. It then forms a thin protective film and thus prevents the renewed ingress of moisture. It is completely neutral toward paints, plastics, rubber and fabrics. It's effective over a wide temperature range from -74°C to +175°C. It's excellent for electrical and electronic equipment, switches, relays, motors, batteries, ignition systems, tools and instruments. Contains 400ml. Reference: 3M-7100046721-SPR-B