Let’s Talk About Coating/Lining Hardness Testing
The relative hardness of an applied coating or lining can be quantified using Pencil Hardness (thin film coatings) or Durometers (thick film coatings).
The relative hardness of an applied coating or lining can be quantified using Pencil Hardness (thin film coatings) or Durometers (thick film coatings).
Regardless of which party you are working for, documentation of inspection data is a critical role for a trained/certified inspector, albeit oftentimes one of the more dreaded tasks.
In the case of CSP and intumescent systems, if they are not applied to the correct thickness across all surfaces of load-bearing steel members or panels/plates and there is a fire event, catastrophic collapse due to heat transfer to the steel can occur resulting in potential loss of life.
Surface preparation is frequently considered a key factor in determining the long-term performance of a protective coating system. The two-fold purpose of surface preparation is to clean and roughen the surface.
This article focuses on the standards and techniques for assessing the surface profile/roughness of concrete after various methods of preparation.
This month’s Case from the F-Files describes the problem of bubbles, pinholes, and blisters in a polyurethane finish coat applied to new structural steel members at a coal-fired power generation plant. Many of the pinholes and bubbles were so small that they were difficult to detect with the unaided eye. Many of the largest blisters …
The Case of Bubbles, and Pinholes, and Blisters, Oh My! -Coating Condition Assessment Read More »