For the passivation of stainless steel

  • Gel consistency for ease of application.
  • Enhancement of chrome oxide corrosion resistant (passive) layer.
  • Dissolves any residual surface contamination.
  • Improved quality of fabricated product.

S-Weld Passivator gel is a powerful oxidising gel for the passivation of stainless steel, duplex steel and Inconel alloys. S-Weld Passivator can be used following pickling, grinding or mechanical polishing of stainless steel to ensure a passive surface is obtained prior to installation or commissioning of the final product.

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1. Surface should be pre-cleaned to remove oils and greases before applying passivating agent. Use S-Weld Brite Wash. Any contamination will shorten the life of the passivating gel.

2. Stir the gel to ensure a smooth consistency and apply S-Weld Passivator using the acid resistant brush provided.

3. Application Times:

Grade of Stainless Steel;Temperature 20 – 38⁰C;Temperature 50 – 70⁰C

200,300,400 Series;30 – 45 minutes;10 – 30 minutes

Duplex;30 – 45 minutes;10 – 30 minutes

Super Duplex;30 – 45 minutes;10 – 30 minutes

Inconel 625, 825;30 – 45 minutes;10 – 30 minutes

4. Rinse thoroughly with clean potable water, dry surfaces to prevent water staining (smut). If a neutralizing agent has been used this must be followed by rinsing again with clean potable water and surfaces should be dried to prevent water staining.

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Boiling Point: N/A

Specific Gravity: 1.20

Water Solubility: Miscible

pH (as supplied): < 1.0

Appearance & Colour: Thick white translucent gel

1130/782.56 units