LG912 Neutral Sealant
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Estimated Delivery:May 05 - May 09
We focus on the production of metal cleaning agents, neutral rust removers, and metal coating agents. The metals we can handle include iron parts, aluminum parts, cast aluminum, galvanized parts, magnesium-plated parts, etc.
Product description

| Item | Details |
|---|---|
| Product Name | LG912 Neutral Sealing Agent |
| Product Overview | LG912 Neutral Sealing Agent is a water-based sealer based on eco-friendly organic corrosion inhibition technology, specially designed for long‑lasting and stable anti-tarnish protection of copper, brass, bronze and other products. Under near-neutral mild conditions, it forms an ultra-thin, dense, transparent monomolecular complex protective film on thoroughly cleaned copper surfaces through chemical adsorption and self-assembly. The film effectively blocks corrosive media such as oxygen, moisture, sulfides (H₂S, SO₂) and fingerprints in the air, preventing discoloration, blackening and greening caused by oxidation and sulfuration, while perfectly preserving the original color and luster of metal to achieve “invisible” protection. |
| Chemical Properties | Appearance: Milky white or transparent liquidpH: 7±1 |
| Product Features | 1.Excellent anti-tarnish performance: Outstanding resistance to sulfuration and oxidation, significantly prolongs the original color retention of copper parts, and passes neutral salt spray and humidity tests.2.Neutral & safe: Working solution is neutral, zero corrosion to copper substrate, no change in dimensions or mechanical properties, no risk of hydrogen embrittlement.3.Invisible ultra-thin coating: Nanoscale film, fully transparent, no effect on appearance, texture, electrical conductivity or solderability.4.Excellent durability & adhesion: Bonded with substrate via chemical bonds, strong adhesion, wear and wipe resistant, long‑lasting protection.5.Eco-friendly & easy operation: Water-based formula, free of chromate, phosphate, nitrite and toxic substances, no irritating odor, operable at room temperature by immersion.6.Wide compatibility: Suitable for pure copper, brass, bronze and other copper alloys, friendly to subsequent processes such as mild heating and packaging. |
| Technical Parameters | pH: 7±1Temperature: Room temperature – 40°CTreatment time: Spray 40–120 seconds, immersion 2–3 minutesMake-up concentration: 10–15% |
| Application Scope | Materials: Pure copper (red copper), brass (H62, H65 etc.), bronze, cupronickel and other copper alloys.Workpieces: Electronic and electrical components, connectors, heat sinks, jewelry, handicrafts, high-grade plumbing parts, musical instruments, medals, copper architectural decorations etc.Processes: Immersion, spray, brushing, wiping.Stages: Final protection after cleaning, polishing, electroplating; short-term rust prevention between processes; ultimate protection before packaging. |
| Standard Process Flow | Thorough Cleaning → Complete Rinsing → Sealing Treatment → Mild Rinsing → Drying1.Pretreatment: Workpieces must be fully cleaned and deoxidized to ensure absolutely clean surface free of oil, oxide, fingerprints and chemical residue. Rinse thoroughly with running water; final rinse with deionized or pure water is recommended.2.Sealing treatment (core step): Immerse drained workpieces fully in working solution for 1–3 minutes. Spray or brush for large parts.3.Mild rinsing (optional but recommended): Quick rinse in clean running pure water for 2–5 seconds to remove excess physical adsorbed liquid.4.Drying: Dry immediately with clean compressed air or oven below 80°C until no wet marks and original luster restored. |
| Notes & Safety | 1.PPE: Wear protective gloves; avoid prolonged skin contact even though mild.2.Process discipline: Inadequate pretreatment leads to invalid sealing. Avoid excessive carry‑over of previous bath residues; check bath cleanliness regularly. Dry timely after treatment.3.Film characteristics: Molecular-level protective film, not resistant to strong acid, alkali or mechanical scratching. Removable by ethanol, acetone wiping or mild polishing.4.Wastewater treatment: Long bath life but high COD; collect waste liquid and treat by professional wastewater system. |
| Storage & Packaging | Packaging: 25kg/plastic drum, 1000kg/plastic drumStorage: Store in cool and ventilated area, away from direct sunlight and high temperatureShelf life: 12 months in unopened original packaging |
Two-in-one pre-treatment standard process




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All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
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All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
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All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
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All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.