The Greenville Utilities Commission (GUC) is requesting Bids from qualified painting companies for furnishing labor, equipment and materials for sandblasting and coating natural gas metering stations located in Greenville, NC. Work will meet or exceed current specifications for applying coatings on natural gas pipeline metering stations in inland and coastal areas and as follows: • Cover stoned area to allow for encapsulation and disposal of sandblast sand. • Cover fencing to protect from sandblasting and paint overspray. • Cover and protect valve shafts/seals and relief on valve flow indicator. • Protect valve vents located on top of indicator on all wheel valves from sand and paint. • Furnish and erect tent over work area to protect coatings from condensation during curing. • Block pipe and remove existing support stands to allow for sandblasting and coating of stands and pipe. Replace stands when completed and level station. • Apply protective tape over identification tags to prevent damage during sandblasting/coating. • Sandblast to NACE No. 1/SSPC-SP 5 White Metal Blast Cleaning specifications. • Remove stone and soil from riser pipes and valve operators to allow for extra coating protection to be applied at air to soil interface area. • After blasting and painting is completed, apply Tapecoat H35 over existing epoxy coating for extra protection on riser pipes. Apply wrap from 12 inches below air to soil interface area to 12 inches above top of stone. • Prime with 4 mils Sherwin Williams Zinc Clad 4100 Organic Zinc-rich three-part epoxy. • Intermediate coat: apply 8 mils Sherwin Williams Macropoxy 646 two-part marine epoxy. • Finish coat: apply 5 mils Sherwin Williams Acrolon Ultra High Performance two-part marine polyurethane with UV additive in ANSI 49 PNG gray. • Replace Acrolon Ultra finish with Sher-Loxane 800 two-part polysiloxane for enhanced durability where piping is subject to continuous heavy condensation. • Seal flanges with Trenton Innercoat Flange-Fill and overcoat with Chase Tapecoat H35. • Rake stone, dispose of spent sandblast sand and clean site, leaving no trace of sand or paint.
