Because, different anticorrosion coatings may influence the corrosion measurements
a low corrosion-resistant coating was used to eliminate any possible interference.
A composite coating was also prepared using the commercial TESSAROL®-Helios, Slovenia
which is a primer for iron based on an alkyd binder and red pigments in organic solvents
after diluting to 30 wt% of solids using TESSAROL®thinner
The base primer and base primer modified with 5 wt% ESC was applied using a scalpel-based method on both sides of a clean mild steel (12 cm × 5 cm)sample.
The coatings were 60 ± 5 m thick after drying in the air
The less corrosion-resistant paint (∼3 g)was mixed with 5 wt% (or in further experiments: 1–10 wt%) of the ground polyaniline powders and applied onto a clean sample of mild steel sample (MS, AISI 1212), 2 cm × 2 cm or 4 cm × 6 cm,using a scalpel-based method