Modified Taber apparatus and new test geometry to evaluate the reduction of organic coatings corrosion protective properties induced by abrasive particles

Reduction of corrosion protection properties of organic coatings due to abrasive damage produced by natural sands

“…The materials used in this work were previously reported in more detail [1,2,12,17]. Q-panels of carbon steel (SAE 1008/1010; 0.13 max C, 0.25-0.60 Mn, dimensions 10 cm × 10 cm) were powder coated with an epoxy-polyester resin.…”

“…Taber Abraser tests [13,14] were carried out using a modified apparatus, which allows electrical contact between the sample substrate and the electrochemical apparatus, avoiding electrical contact with the Taber Abraser metallic parts, as shown in a previous work [2]. As for previous studies [1,2], instead of abrasive wheels, a pair of rubber wheels and abrasive sands were used.…”

“…In the past few years, the request for better protective performance and coating integrity has increased [1,2]. In addition, in many industrial applications, the protective properties against corrosion have to be combined with a good resistance to abrasion and particle impacts.…”

“…In a previous study [2], a modification of the standard Taber Abraser apparatus was shown, which allowed the electrical contact between the sample substrate and the electrochemical apparatus was presented. The geometry of the coated sample was modified and the evaluation of the loss of protection properties was achieved without removing the sample from the abrading system.…”

Method for the characterization of the abrasion induced nanoparticle release into air from surface coatings

“…Rossi, Deflorian, and Risatti (2006) modified the Taber Abraser to evaluate the reduction of corrosion protective properties of organic coatings. A special feature of their work is that the impedance measurements were carried out without removing the coated samples from the Taber apparatus and using the abrading slurry as electrolyte.…”