ARMORTHANE CASE STUDY: CONCRETE SEWAGE TANK LINING 


Our work began with a series of steps dedicated to preparing the surface for liner installation, starting with the application of a fairing coat called Flexcrete. The fairing coat was used to modify the tank’s surface profile to facilitate better adhesion preceding the application of our ArmorSeal surface primer – ArmorThane’s damp-tolerant, roll-on primer coating. In parallel, local conditions were carefully monitored in preparation for liner application; relative humidity, dew point, and air temperature can all influence application procedures and inform our best practices for each project. The phase following surface preparation was to apply the first two of three total coats of our ArmorLiner coating in contrasting colors. Between these first two coats and the third and final layer, we used specialized combs to carefully guide membrane formation and ensure the correct final thickness was achieved. We subsequently applied the third and final layer of ArmorLiner, which was left to cure, before then assessing the quality of the resulting liner and correcting for any imperfections using spark testing and a suite of standard protocols for evaluating polyurea coatings.