Nulon Pro-Strength Electrical Contact Cleaner is a fast-acting residue-free formulation ideal for removing light oils, dirt, dust particles, flux residue and condensation from sensitive electrical components and equipment. Applications: Micro-switches, Connecting sockets, Fuses, Radio appliances, Printed circuit boards, Contact points, Batteries, Switches, Micro-processors, Multi-pin connections, Loom terminals, Ribbon connections. Directions for Use: Always use at room temperature, ensuring proper ventilation. Disconnect and de-energise electrical devices prior to use. Shake can well before use. Spray directly on the surface to be cleaned and allowproduct to completely dry. Brush away any excess buildup of dirt, dust or contaminants. Before restoring power to any electrical device, ensure treated area is completely dry and ventilated to avoid ignition.