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