Novaphos F687 imparts a corrosion-resistant coating which greatly improves paint adhesion onto surfaces of iron, steel, aluminium, or zinc components. A formulated iron phosphate solution, it includes a fluoride element within the matrix to permit the phosphating of mixed metals.
Novaphos F687 is supplied as a heavy colourless liquid for spray application. It may be applied in multistage spray wash or spray tunnel systems and will tolerate light soiling on the part being treated. Neat Novaphos F687 will clean and phosphate in one operation, while the addition of a Ridosol detergent will significantly enhance the cleaning action.
Novaphos F687 is supplied in highly concentrated form and is typically diluted at the rate of seven litres per 1000 litres, or 0.7% by volume. It may be applied at a range of temperatures from 30-60C at moderate pressure of 1.5-2.0 bar. Contact time is just 1.5-3.0 minutes, to leave a clean phosphated surface offering good corrosion protection and excellent paint adherence. Novaphos F687 is classified as non-hazardous and conforms to BS3189 Type 4 and DEF STAN 03-11 Class IV specifications.
