Epoxy Stainless?
- Thread starter Stephen Trapani
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BAD idea.
Coatings eventually fail or have 'pin holes' that allow 'wicking' (by capillary action) of fluids. The 'water' that enters 'behind' the coating will rapidly become 'de-oxygenated' (O2 uptake by the base metal to continually restore the chromium rich surface) and RAPID an d 'enhanced' corrosion will occur.
300 series Stainless Steel needs to always be exposed to an 'oxygen-rich' environment to maintain its 'rust free' characteristics. If you 'coat' and the coating 'leaks' you very rapidly accelerate corrosion.
If you need to 'protect' a stainless shaft, then a thin coat of bottom paint will suffice as most 'bottom paints' are 'oxygen permeable'.
Coatings eventually fail or have 'pin holes' that allow 'wicking' (by capillary action) of fluids. The 'water' that enters 'behind' the coating will rapidly become 'de-oxygenated' (O2 uptake by the base metal to continually restore the chromium rich surface) and RAPID an d 'enhanced' corrosion will occur.
300 series Stainless Steel needs to always be exposed to an 'oxygen-rich' environment to maintain its 'rust free' characteristics. If you 'coat' and the coating 'leaks' you very rapidly accelerate corrosion.
If you need to 'protect' a stainless shaft, then a thin coat of bottom paint will suffice as most 'bottom paints' are 'oxygen permeable'.
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