【On Metal Reactivity】
The Bell Hammer series contains proprietary additives to enhance extreme pressure lubrication performance, but it is formulated to avoid causing corrosion or chemical damage to commonly used metals such as iron, aluminum, stainless steel, and copper.
From the development phase to the present, there have been no reported cases of “metal degradation” or “corrosion promotion,” and the product maintains both stable compatibility with metals and long-term lubrication performance.
【About Some Observed Changes】
However, in areas of vintage or restored vehicles, or old machinery parts where dissimilar metals (e.g., steel + zinc plating + paint) are used, galvanic corrosion (caused by potential differences between metals) may naturally occur.
In some cases, when Bell Hammer remains unevenly or becomes concentrated in such zones, previously hidden rust or discoloration may become visible.
These cases are due to interactions between the metals and the environment, and not because Bell Hammer itself causes corrosion.
We understand your concerns, and we hope this explanation helps clarify the situation.
【Regarding Online Information】
In recent years, there have been instances of misinformation circulating online—some not based on actual usage, others confused with different products, or cases overly amplified.
Reports of “rust” or “discoloration” often involve pre-existing corrosion, humidity, electrical influence, or use with other chemicals, and are frequently unrelated to the Bell Hammer product alone.