Rust Remover Pickling Gel
Thixotropic gel containing hydrofluoric and sulfuric acids for vertical surface rust removal on stainless steel. HTS 3810.90.5000 covers this metal pickling preparation, preventing drips during tank/vessel maintenance. Neutralizes to phosphate conversion coating.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pure hydrofluoric acid solution
Unprepared HF classifies as halogen acid regardless of rust removal claims.
If marketed as general metal cleaner, not pickling
Cleaning preparations exclude specific pickling chemistries.
If for chemical reaction scale removal, not surface prep
Process chemical mixtures use different prepared chemical codes.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Hydrofluoric acid declaration (<5%) triggers special handling protocols
• Gel rheology testing confirms pickling vs general cleaner status
• Passivation test compatibility for 300-series stainless validation
Related Products under HTS 3810.90.50.00
Metal Pickling Solution for Steel
A hydrochloric acid-based solution designed to remove rust and scale from steel surfaces prior to further processing. It falls under HTS 3810.90.5000 as a pickling preparation specifically for metal surfaces, used in industrial metal cleaning applications. This category covers auxiliary preparations essential for metal preparation in manufacturing.
Flux Paste for Aluminum Brazing
A chloride-based paste that cleans and protects aluminum surfaces during high-temperature brazing operations. Classified under HTS 3810.90.5000 as an auxiliary preparation for brazing, it prevents oxidation and ensures strong joints in HVAC components. This subheading captures specialized fluxes beyond basic soldering types.
Welding Electrode Coating Powder
A powdered mixture of silicates, carbonates, and ferroalloys applied as coatings to welding electrodes for arc stability and slag formation. It qualifies for HTS 3810.90.5000 as preparations used as cores or coatings for welding electrodes or rods. Essential in shielded metal arc welding for structural steel fabrication.
Silver Solder Flux for Electronics
A rosin-activated liquid flux optimized for silver-based soldering in circuit board assembly. Falls under HTS 3810.90.5000 as other auxiliary preparations for soldering, providing clean joints without residue in precision electronics. Meets J-STD-004 standards for no-clean applications.
Phosphoric Acid Metal Pickler
A gel-formulation phosphoric acid pickler for rust conversion and surface preparation on ferrous metals. HTS 3810.90.5000 classification applies to this metal surface pickling preparation, ideal for on-site maintenance without fuming issues. Contains inhibitors for flash rust prevention.
TIG Welding Flux for Stainless Steel
Fluoride-based flux powder for Gas Tungsten Arc Welding (TIG) of stainless steel, enabling oxide-free welds. Covered by HTS 3810.90.5000 as auxiliary preparation for welding, specifically for high-alloy metals requiring clean root penetration. Used in food/pharma equipment fabrication.