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Flange Protection System - SKPS

FLANGE PROTECTION

The Flange Protection system consists of the VISCOSEALANT in combination with the EZ WRAP to stop corrosion between the flange faces of onshore and offshore applications. The system provides a seal that is not affected by vibrations of the pipeline, movements, freeze/thaw, expansion & contraction. VISCOTAQ is hydrophobic; therefore water intake and water vapor permeability are very low. VISCOTAQ is non-toxic, contains no VOC’s and adheres aggressively to most all surfaces such as steel, PE, epoxies, tar, stainless, aluminum, etc. The result is a long-term corrosion prevention system and a maintenance-free solution for many years. The coating remains in intimate contact with the substrate creating an impermeable homogeneous corrosion prevention coating.

STEP 01: SURFACE PREPARATION

  • Minimum surface preparation should be SSPC-SP2 (Hand Tool Clean).
  • Once loose materials are removed, clean surface with denatured alcohol or acetone to remove any remaining dust, grease and moisture.
  • Surface of the substrate should be 5°F+ above the dew point.
  • Keep the working area clean and dry. Avoid the presence of water.

STEP 02: VISCOSEALANT APPLICATION

  • VISCOSEALANT is to be applied into the void between the flange faces. Protect flange neck with a removable tape in order not to pollute the neck with the VISCOSEALANT.
  • For optimum application of VISCOSEALANT, preheat material to 35°C/90°F.
  • Inject the VISCOSEALANT into the space between the flange faces around the complete circumference of the flange.
  • Dependable upon the flange class and type, a flexible nozzle can be used to better penetrate the flange aperture.

STEP 03: EZ WRAP APPLICATION

  • Remove the protective tape on the neck and apply one layer of EZ WRAP over the complete circumference of the flange.
  • Overlap EZ Wrap at least 5 cm/2’’. A roller may be used to ensure adhesion.
  • In case the flange neck does not match the width of the EZ WRAP, apply separate wraps in such a way that the circumference overlap between the two wraps is always a minimum 1”. Termination of wraps to be staggered. Install cap on nut and bolt.
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