Surface Preparation:
- Compressed air was used to "sweat out" oils and other contaminants from the concrete surface.
- The surface was then abraded using hand-held diamond grinders to remove damaged material and create a clean profile for the repair.
Concrete Repair with UPS 821 FFP FASTFILL PLUG
- The damaged sections of the concrete substrate were rebuilt using UPS 821 FFP. This material provided a quick-setting, durable repair to restore the integrity of the concrete.
Priming with UPS 909 PP POROUS PRIMER
- The entire surface was primed with UPS 909 PP, applied by brush and roller to a wet film thickness of 150 microns. This primer ensured proper adhesion of the subsequent protective coating.
Application of UPS 407 EN EPOXY NOVOLAC
- A stripe coat of UPS 407 EN was applied by brush to all edges and corners for extra protection.
- The entire area was then coated with two layers of UPS 407 EN, applied by brush, roller, and squeegee to achieve a wet film thickness of 400 microns per coat. This final coating provided a robust barrier against sulphuric acid, ensuring long-term protection.