53E-303 as found · 2023 campaign photo
Paragon crew in-situ · representative
53E-303 finished tubesheet · 2023 campaign photoEroded steel, no spec package
Suncor Base Plant, spring 2026 turnaround: the first-pass inlet tubesheet of waste-heat boiler 53E-303. The scope came by email, so Paragon wrote its own application procedure and ITP, and qualified adhesion on a test plate before production.
Bare steel, then molten metal
Media-blasted to bare steel to SSPC-SP 5 with 16-mesh aluminum oxide for a 4.3–5.2 mil profile. Then the gun fires: molten droplets of Stellite 6 flatten and freeze, layer on layer, onto a 5.1 mil bond coat.
Inside the exchanger, around the clock
Confined-space work, planned as an 8-person crew on two 12-hour shifts with an AMPP-certified coating inspector on site. Blast and bond coat on 4 May; final coat on 5 May.
Measured, not assumed
Qualification pulls averaged 4,295 psi against a 3,500 psi minimum. Read the case study →




































