Netphos 50 Gel is for the cleaning, degreasing, deoxidising and passivation of bare ferrous surfaces or general metallic surfaces coated with either liquid or powder paints. It will remove the black marks caused to painted metals when being soldered, welded or cut as well as removing traces of corrosion from painted surfaces without damaging the paint. Netphos 50 Gel can also be used to de-rust mechanical parts giving them a surface that is perfect for the adherence of paint. Treated surfaces are also neutrailsed and can remain without protection for several weeks without risk of corrosion. Due its composition, Netphos 50 Gel allows for the de-rusting and passivation of greasy parts and surfaces so can be used effectively on-site such as on oil rigs and wind turbines, shipping and aerial platforms. As well as the treatment of metal, as already described, Netphos 50 Gel can be used to generally clean the area surrounding treated sections. This is especially helpful when treating areas prior to painting. For general degreasing, Netphos 50 Gel should be applied to the surface and after 3-5 minutes rinsed. Rinsing can be with tap water and does not need to be pure. On oxidised surfaces, stainless steel, raw steel or painted surfaces a film of 250-600 microns should be applied either with a brush, roller or low pressure sprayer. Contact time will vary depending upon the degree of rusting: Low corrosion or dirt - 30-50 minutes at 18-20oC Average corrosion or dirt - 2-4 hours at 18-20oC High corrosion or dirt - 8-12 hours at 18-20oC Rinse the surface with high pressure or general spray and dry before recovering/painting. For non-ferrous metals contact time should be no longer than 30-minutes. Any application equipment should be made from either stainless steel or acidic resistant plastic. Operators should use gloves and glasses that are resistant to professional quality acidic products. As with all of our products we strongly recommend a surface compatibility test on a small area prior to the commencement of large scale treatment.
