Metal Seal Corrosion Prevent Sealant

Metal Pretreatment Sealant & Corrosion Inhibitor | Metal Seal™ 285

A water-based alkaline sealant for corrosion prevention on phosphated metal surfaces. Metal Seal™ provides an inhibitive seal on iron, zinc, and manganese phosphated surfaces, boosting corrosion resistance without reducing paint adhesion. Used as a final pretreatment step before painting, it also strips residual soil and phosphate sludge from the surface, leaving a clean, paint-ready substrate with an added layer of corrosion protection.

Key Features

• Provides excellent corrosion resistance on phosphated metal
• Does not reduce paint adhesion — engineered for pre-paint pretreatment
• Removes residual soil and phosphate sludge in the same step
• Effective on iron, zinc, and manganese phosphated surfaces
• Water-based alkaline formula
• Economical — dilutes 25:1 up to 50:1
• Biodegradable

Applications

• Machine shops
• Manufacturing and remanufacturing plants
• Powder and liquid paint facilities
• Metal pretreatment lines prior to painting
• Phosphate coating finishing and sealing operations

Why Choose Metal Seal™

• Corrosion Protection: Lays down an inhibitive seal that boosts corrosion resistance on freshly phosphated metal.
• Paint-Ready Finish: Seals without compromising paint adhesion, so downstream coatings bond properly.
• Two Jobs, One Step: Removes leftover soil and phosphate sludge while it seals, streamlining the pretreatment line.
• Broad Compatibility: Works on iron, zinc, and manganese phosphate surfaces alike.
• Economical: Dilutes 25:1 up to 50:1, so a little goes a long way.
• Biodegradable: Water-based chemistry that breaks down rather than persisting in waste streams.

Specifications

• Physical Form: Liquid
• Color: Light yellow
• Fragrance: None
• pH (1% dilution): 10.0 – 11.0
• Suggested Dilution: 25:1 up to 50:1
• DOT Class: None (not regulated by DOT)

Quality & Compliance

• Manufactured by KO Manufacturing, Inc. — Springfield, MO
• Water-based alkaline formulation; biodegradable
• All components listed on the TSCA inventory
• Signal Word: DANGER. Causes serious eye damage and skin irritation. Wear chemical-resistant gloves, apron, and safety glasses, and review the SDS in full before handling.

Safety Data Sheet

Titration Chart