Stainless Steel Pickling Gel 2.5kg – Weld Discoloration Remover

High-adhesion stainless steel pickling gel formulated to remove weld scale, heat tint, and oxidation, restoring a clean, passive surface and corrosion resistance after welding on stainless steels, duplex, and Inconel alloys. The thixotropic gel sticks to vertical and overhead surfaces for controlled application with minimal waste, and is fully water-rinseable for fast cleanup. Complies with ASTM A380/A380-17 for cleaning, descaling, and passivation practices on stainless steel, and is commonly supplied with an acid-resistant application brush in a 2.5kg container.

• Removes black oxide, discoloration, and weld oxides to restore corrosion resistance.

• Thick gel adheres on vertical/overhead areas; ideal for local weld seam treatment where immersion isn’t practical.

• One-step, quick-acting process; rinse off with water after dwell time per grade and conditions.

• Suitable for stainless steels (incl. duplex) and Inconel; supports post-weld passivation readiness.Typical properties: pH<1; opaque white acidic gel; specific gravity ~1.24–1.26.

• Pack size: 2.5kg; often shipped with a brush and clear application guidance.

Key Features

• ASTM A380 compliant cleaning/descaling gel for stainless steel.

• High-adhesion, controlled application; reduces product waste and dripping.

• Works on vertical and overhead welds; ideal for in-situ post-weld cleaning.

• Completely water-rinseable; easy cleanup after recommended dwell time.

• Restores passive chrome-oxide layer for improved corrosion resistance.

Directions (Summary)

• Allow weld area to cool below 40°C, then stir to a smooth consistency.

• Brush on a thick layer; avoid direct sunlight; follow dwell times suitable to grade and weld method.

• Rinse thoroughly with fresh water; treat waste water per local regulations.

Safety

• Acidic gel typically based on nitric and hydrofluoric components; use appropriate PPE and follow SDS.

• Apply in well-ventilated areas; avoid skin/eye contact and inhalation.