Import Blackening Fluid — Buy in Bulk from Supplier in India

Blackening fluid from Deepak Industrial Chemicals is a highly alkaline chemical solution with a pH of 14, formulated specifically for converting the surface of steel components into a stable black oxide layer. This process enhances corrosion resistance and reduces light reflection, making it suitable for precision parts in mechanical and automotive applications. The fluid is designed for immersion or spray application in industrial settings, with a recommended operating temperature range of 135 to 145 degrees Celsius for optimal results.

The formulation is based on sodium hydroxide and nitrates, typical of alkaline blackening baths used in industrial metal finishing. It does not contain chromates or heavy metals, aligning with standard environmental compliance practices in metal treatment. The resulting finish is typically 0.5 to 1.5 micrometres thick, with a matte black appearance that resists abrasion under normal handling. The fluid is compatible with mild steel, carbon steel, and low-alloy steels, but not recommended for stainless steel or non-ferrous metals without prior testing.

This blackening fluid is purchased by manufacturers of firearm components, automotive brake parts, industrial tools, and precision machinery assemblies. Buyers typically order in bulk quantities of 20-litre drums or 200-litre totes, with minimum order quantities negotiated directly with the supplier. Trade terms commonly include FOB Mumbai or CIF destination ports, with lead times of 7 to 14 days after order confirmation. A material safety data sheet and batch-specific test reports are provided upon request.

Deepak Industrial Chemicals is based in Peenya Industrial Estate, Bangalore, and supplies chemical solutions for metal surface treatment to domestic and export markets. The supplier is listed as imported with harbor trust tier, indicating verified export documentation and compliance with Indian chemical export regulations. Their profile shows no public claims regarding years in business, production capacity, or client names, and no certifications are stated in the listing.

The company operates as a direct manufacturer or formulator of industrial chemicals, with no indication of third-party distribution. Response rate and average response time are not available in the listing, suggesting limited real-time engagement capability. Buyers should confirm processing capabilities, batch consistency, and lab testing protocols directly before placing orders. No claims about ISO, SGS, or other certifications are supported by the provided data.