Alcophor 827
Cognis
腐蚀抑制剂 >> 长期腐蚀保护
Corrosion inhibitor >> Long-Term Corrosion Protection
醇酸树脂
Alkyd Resins
涂层 >> 由溶剂生成
Coatings >> Solventborne
涂层 >> 水生
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.