Fast-Drying Rust Preventive Oil
KG-2 / KG-3 Fast-Drying Rust Preventive Oil — Series Overview
General-purpose fast-drying rust preventive oils. Confirm the current KG-2 specifications before selection.

- Protection period
- KG-3: 1 year unpackaged; 3–5 years bagged
- Humidity test (40 °C)
- Not specified
- Salt spray test
- KG-3: 18–24 h (No. 45 steel)
- Flash point
- KG-3: 61–68 °C
Product overview
KG-2 and KG-3 give excellent rust protection on low-, medium- and high-carbon steels and on alloy steels containing manganese, vanadium, chromium and molybdenum. KG-2 is deep brown; KG-3 is light yellow.
KG-3 is suitable for steel, cast iron and copper, with a flash point of 61–68 °C and an 18–24 hour salt-spray reference on No. 45 steel. See the KG-3 page for application details.
Key benefits
- KG-3: 1 year unpackaged; 3–5 years with plastic-bag packing
- Dense, thin film once the solvent evaporates
- KG-3 stays light yellow and resists yellowing
- Dip, spray or brush; dipping is the most economical and reliable method
Typical applications
- Low-, medium- and high-carbon steel parts
- Alloy steel parts (Mn, V, Cr, Mo)
- Steel, cast iron and copper parts across industries
Metals
SteelCast ironCopper
Application method
DipSprayBrush
How to use
- Parts must be clean and free of water before treatment.
- Let surplus oil drain and the film dry completely before packing.
- Do not spin-dry, do not apply with a rag, and do not oil parts hotter than 40 °C.
KG-3 values apply to KG-3 only; confirm KG-2 specifications separately. Protection periods depend on application, packaging and storage.
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Not sure this is the right grade?
Tell us the metal, the process and the protection period you need. A corrosion protection specialist will recommend a grade and arrange samples.