ISOTECT 377
High-Performance Solvent-Based Rust Preventive
ISOTECT 377 is a solvent-based, non-water-miscible corrosion protection fluid designed to provide reliable and long-lasting rust prevention for metal surfaces. Its polar-active formulation removes residual moisture from the metal surface and replaces it with a protective film layer that effectively prevents corrosion.
After application, ISOTECT 377 forms a thin, uniform protective film that ensures excellent protection during storage, transportation, and packaging processes. The product provides stable protection performance across a wide temperature range, including extreme cold and hot conditions
Key Performance Advantages
Excellent corrosion protection for metal components
Moisture-displacing protective film formation
Free from barium and its compounds
Suitable for dipping, spraying, or brushing applications
Long-term protection during storage and transportation
Easy removal using alkaline or solvent-based cleaners
Reliable protection under varying temperature conditions
Application Areas
ISOTECT 377 is recommended for protecting:
Steel and metal components
Ball and roller bearings
Tools, molds, and dies• Surface-treated parts
Construction machinery components
Rolling mill rolls
Machinery and equipment during overseas shipment
The product is widely used in manufacturing environments, including automotive production, for final corrosion protection before packaging
Application Method
ISOTECT 377 can be applied through:
Immersion processes (recommended for serial production)
Spraying
Brushing
Typical immersion time: approximately 1–3 minutes.
Drying time can be reduced to about 5 minutes using hot or dry air systems
Coverage rate: approximately 35 m² per kg.
Film thickness after application: approximately 0.02 mm
Technical Highlights
Density at 15°C: 0.84 g/cm³
Viscosity at 40°C: 2.5 mm²/s
Flash Point: > 60°C
Pour Point: -18°C
Film Type: Oily, vaseline-like protective layer
Corrosion Protection (Indoor): > 12 months
Corrosion Protection (Outdoor): > 5 months
Storage Recommendation
Store the product in a dry and closed environment protected from sunlight and large temperature fluctuations. Containers should remain tightly closed and stored upright after opening

