“What performance characteristics should I be looking for in the test results? How do these characteristics help me understand the coating’s behavioral tendencies in the field?”
HRCSA consistently outperforms Rust Creepage tests when compared to all other coating systems around the world. HRCSA has outperformed the 5 coat Japanese standard, the 3 coat American standard and (so far) all other coating systems against which it had been tested.
Performance Evaluation of One-Coat (Fully documented test above).
However, such test results don’t matter if your refurbishment goal is to protect flat surfaces AND stop structure critical corrosion in areas where corrosion build can both thin, and even deform, steel.
Hard Film Form Paint Systems Weakest Links
Corrosion-frozen moving parts such as bearings, pins, bearing-pins can impart great stress to steel members.
Challenge Your Supplier!
HRCSA unique ability to chemically stop both surface and crevice corrosion.
HRCSA offer the unique ability to chemically stop crevice corrosion and pack-rust for decades at a time. When crevice corrosion and pack-rust cells are stopped, pack-rust cells no longer bend beams beyond the point where they were treated.
HRCSA Unique Ability to Chemically Stop Crevice Corrosion and Packrust.
HRCSA Penetrant (inside crevices only) + HRCSA self-priming topcoat (applied overtop penetrant treated crevices = HRCSA meld coat.
No rust bleeding or undercutting after 15 years
HRCSA meld coat remains chemically active both inside the connection and on the outside for decades.
This chemically active, elastomeric coating seals the connection for added protection and will not undercut on the steel substrate surface.
1.Undercutting Resistance (Full Surface Wetting – HRCSA self-priming topcoat): The coatings ability to bond and fully wet the micro voids on the steel surface
2.Flexibility: Flexibility is an important characteristics because most steel structures are ductile and they move – especially at connection areas. Hard, brittle coatings applied to substrates where temperatures deep freeze can prematurely undercut and corrode beneath the film.
3.Weathering: The ability of the coating to resist the effects of the sun, wind, and rain to ensure that the integrity of the film remain intact over the long term. This is important because if the film is prematurely UV degraded by the sun and the weather, the coatings ability to act as an effective barrier is severely compromised as would be the long term corrosion protection of the structural steel.
The dramatic effects of not being able to handle these types of stresses is shown in the attached summary card from the FHWA ASTM D5894 test done at their lab.
Naturally, the best comparisons to look for is how well the coating has performed in the field – particularly inside complex areas like panel points, gusset plates, and bearings where there is a lot of movement.