ZERUST® Zeriol™ MCO-35 is a ready-to-use, oil-based corrosion preventive that forms a clear, thin, oily film to protect ferrous, nonferrous, and multimetal surfaces in aggressive environments such as humidity, salt air, and marine exposure common to oil & gas fabrication, storage, and export. It also provides lubricity to support handling, inspection, assembly, and disassembly. Zeriol MCO-35 is free of barium and heavy metals and complies with TSCA, RoHS, REACH SVHC, and Global Automotive Declarable Substance requirements.
ZERUST® Zeriol™ MCO-35
Typical Applications
Zeriol MCO-35 is used for temporary preservation of oil & gas equipment during storage, transport, or lay-up, including:
- Fabricated piping and spools
- Valves, flanges, and fasteners
- Machined and cast parts
- Structural steel and skids
- Engines and mechanical assemblies
- Multimetal oil & gas components
Key Advantages
- Provides extreme corrosion protection in humid, coastal, and marine environments
- Suitable for ferrous, non-ferrous, and multimetal surfaces
- Forms a clear, thin, oily film that allows easy inspection
- Lubricating properties support handling, assembly, and disassembly
- Compatible with multiple application methods
- Easily removable prior to further processing or commissioning
- Optional color customization or UV tracer for inspection and quality control
- Free of barium and heavy metals
- Compliant with TSCA, RoHS, REACH SVHC, and Global Automotive Declarable Substance requirements
APPLICAION GUIDELINES & REMOVAL*
Application Guidelines:
- Ready to use; mix well before use.
- Apply to clean, dry metal surfaces by immersion, brush, or spray at 50-110°F (10-43°C).
- Allow coated parts to dry 5-10 minutes before handling or packaging.
- For extended protection, package with ZERUST® VCI film packaging products, especially for indoor storage or ocean freight.
Application Controls:
- Do not reuse collected spray material.
- For extended immersion use, consult your ZERUST® representative.
- Use a natural bristle brush and decant into a clean container.
Removal:
- Remove Zeriol MCO-35 using compatible ZERUST® AxxaWash™, alkaline, or solvent cleaners
- prior to coating, hydrotesting, or commissioning.
*Consult a ZERUST® representative to discuss specific needs.
Typical Properties
- Appearance: Amber oil resulting in a light, thin, oily film (additional colors available upon request)
- Substrate: Multimetal protection
- Coverage: 815 ft² (76 m²) per gallon
- Wet Film Thickness (WFT): 2 mil (50 μm)
- VOC Content (EPA Method 24): 0.325 lb/gal (39 g/L)
- Flash Point (ASTM D93): 212°F (100°C)
- Density: 0.92 g/cm³
- Viscosiy: ≈ 350 cPs @ 100 RPM, spindle 63 @ 77°F (25°C)
Typical values are not meant to be a specification.
Please contact a ZERUST® representative for more specific recommendations on specific operation and conditions.
Availability
Contact a ZERUST® representative for ordering information.
Product Number: 350-M-00124PL Unit of Measure: 5 gal (19 L) pail
Product Number: 350-M-00124DR Unit of Measure: 55 gal (208 L) drum
Product Number: 350-M-00124AC Unit of Measure: 12 oz (355 mL) aerosol can
Product sold in US customary units. Metric units approximate.
Storage
Store in original packaging at 50-90°F (10-32°C), away from direct sunlight. Reseal after use. Shelf life is up to 2 years from date of shipment.
