The halogenated NR.1V welding fluid is a well-activated inorganic flow. Mainly, the flux is used to weld steel / iron with tin (for example to weld steel rods between them with tin). Product benefits: * Good adhesion tin with steel / iron. * Good activation. * Clean welding. * Easy to clean water-soluble residues. Application: For easily weldable surfaces, the Nr.1V flow solder fluid is applied in thin layer form. If the surface is difficult to weld, the mechanical roughness can provide a better welding capacity. subsequently the waste must be cleaned well with water. Better cleaning results are achieved with warm water. Bottle with brush of 50 Ml.