Callington S‑Weld PassGel‑N Stainless Steel Passivation Gel – 1 Qt

Callington S‑Weld PassGel‑N Stainless Steel Passivation Gel – 1 Qt

Thick, fluorine‑free passivating gel engineered to enhance corrosion resistance on stainless steel, duplex steel, and Inconel alloys. Designed for in‑field application on vertical and horizontal surfaces.

• Fluorine‑free passivation gel suitable where fluorine use is restricted
• Improves corrosion resistance by strengthening the chrome oxide passive layer
• Gel consistency for easy application on vertical, horizontal, and confined areas
• Removes free iron and surface contaminants after grinding, welding, or polishing
• Reduces need for equipment disassembly—ideal for in‑field use
• Conforms to ASTM A380/A967 and Boeing HP4‑8 standards

Callington S‑Weld PassGel‑N is a heavy‑duty passivating gel for use on metals that require a high level of corrosion resistance. Its thick formulation allows controlled application to a variety of metal surfaces—making it ideal for aerospace, industrial fabrication, and precision assemblies where traditional liquid treatments are impractical.

This gel is especially effective following mechanical surface preparation such as pickling, grinding, or polishing. It removes residual iron and contaminants while creating a consistent passive layer that enhances durability and extends service life. Because the formula is fluorine‑free, it can be used in applications where fluorine compounds are prohibited.

Application & Usage

Before use, clean surfaces thoroughly to remove oils and greases. Stir gel to ensure smooth consistency and apply using the provided acid‑resistant brush. Allow the gel to dwell per recommended times based on material and temperature, then rinse thoroughly with potable water and dry to prevent staining.

Technical Specifications

• Formulation: Thick white translucent gel
• Specific Gravity: 1.20
• pH (as supplied): <1.0
• Water Solubility: Miscible
• Container Size: 1 Quart (946 mL) with acid‑resistant brush
• Shelf Life: 24 months when stored correctly
• Approvals: ASTM A380, ASTM A967 Passivation Treatments, Boeing Process Specification HP4‑8

Safety Notice: This product contains corrosive nitric acid. Wear appropriate PPE including gloves, goggles, and protective clothing. Use only in well‑ventilated areas. Follow all safety precautions and first‑aid procedures on the label.