This onsite 202’ Dia Oil Storage Tank required the topside of Floating Roof & Pontoons abrasive blasted & coated for a submerged service environment per client specifications. To do so, we implemented a custom project approach.

Performed pre-blast inspection and found the substrate was SSPC-ViS-1 CONDITION G1 with extensive pin point rusting visible.

All sharp edges required chamfer with grinding disk to meet NACE SPO-178

Some weld repairs were required to be completed by Client

Complete SCAT testing was completed for contamination to ensure acceptable levels

Heat was Induced in tank void under EFR to maintain Substrate conditions.

Surfaces were abrasive blasted to a SSPC-SP10/NACE 2 Near White Blast & Spent abrasive removed via Industrial VEC Loader Vacuum

Prime coat of Devoe Bar-Rust 235 applied after final blast inspection on a daily basis until the entire surface of tank was completely abrasive blasted & primed in.

Total DFT Applied was 12 to 16 Mils DFT in multiple roller coats per Client Specification.

Between Roller Application Coats, to attain specified DFT, the Surface was cleaned of all debris and Protrusions

All low areas Identified and recoated to specification