Alcophor 827 Cognis Corrosion inhibitor >> Long-Term Corrosion Protection Alkyd Resins Coatings >> Solventborne Coatings >> Waterborne Use Highly effective corrosion inhibitor in combination with zinc phosphate for waterborne and solvent borne systems. ALCOPHOR 827 increases the anti-corrosive effect of pigments which form protective layers in the anodic zone. However, due to its extremely low water solubility ALCOPHOR 827 also improves the stability of anti-corrosive coatings manufactured with it. Besides its excellent dispersability, it also exhibits an outstanding stability against sedimentation. The following example shows the improvement in the rust protection of an alkyd resin primer when using a low level of ALCOPHOR 827 in conjunction with zinc phosphate: Air drying alkyd resin primer - pigmentvolume concentration = approx. 41% Pigmentation: Rutile titanium dioxid 14 % by volume Micronised talc 14 % by volume Barium sulphate 48 % by volume Zinc phosphate 24 % by volume without ALCOPHOR 827 55 % (anticorrosive value*) with 0.9 % ALCOPHOR827 80 % (anticorrosive value*) *= (Cognis test method 113) Dosage According to the results of our rust protection tests the optimum dosage is about 1 - 2 %, calculated on total paint. Miscellaneous Although the product shows an acute oral toxicity of > 5 g/kg, it is recommended to use a dust mask when handling larger quantities. Effective corrosion inhibitor in combination with zinc phosphate for waterborne and solvent borne systems. Increases the anti-corrosive effect of pigments which form protective layers in the anodic zone. Low water solubility. Improves the stability of anti-corrosive coatings. Excellent dispersability. Exhibits an outstanding stability against sedimentation. Recommended usage level: 1 - 2 %, calculated on total paint. Shows an acute oral toxicity of > 5 g/kg.