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Product of the Month
A botanical-based, environmentally friendly, corrosion preventative that will protect all metal surfaces from moisture, high humidity, and salt spray vapors. It contains no petroleum oil or hazardous materials. Request more information and find out more about Metcor 71 at www.metalloidcorp.com.
Corrosion Prevention for Precision Parts: Science, Methods, and Solutions
Precision parts require careful handling to prevent corrosion, which can compromise performance, accuracy, and lifespan. Corrosion is an electrochemical process: metals lose electrons (anodic reaction) while oxygen or hydrogen gains electrons (cathodic reaction), forming rust or oxides. Contaminants like salts, oils, and acids accelerate this process.
1. Clean
Remove all contaminants to stop corrosion before it starts:
- Degrease: Remove oils and machining fluids
- Ultrasonic cleaning: Dislodge microscopic particles.
- Deionized water rinse: Remove ionic residues
2. Protect
Apply chemical or physical barriers to prevent oxidation:
- Temporary inhibitors: Oils or vapor-phase compounds
- Passivation: Acid treatments form stable oxide layers
- Conversion/sacrificial coatings: Zinc, phosphate, or chromate coatings
3. Store & Monitor
Maintain protection until parts are used:
- Controlled humidity, VPI packaging, or desiccants.
- Regular inspections or testing
Key Takeaway:
Clean → Protect → Store ensures precision parts remain corrosion-free, maintain tolerances, and extend service life.
Metalloid Corrosion Inhibitors
Metcor 52 Water-Based Corrosion Preventative
Metcor 57 Solvent-Based Corrosion Preventative
Metcor 71 Botanical-Based NSF Food-Approved Corrosion Preventative
Metcor 908LV Mineral Oil-Based Corrosion Preventive
Metalloid Corrosion Inhibitors
Find out more at Metalloidcorp.com/corrosion-inhibitors/rust-preventatives/
