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topic 3127

Want a true BLUE passivate on cyanide zinc


why can't I get a true blue look to clear passivate on cyanide zinc, HELP

steve searle
- england


Are you using a Nitric pre-dip? Is your water supply from a hard water area? If so, it may need to be treated prior to adding the passivate concentrate. Is your immersion time long enough ? I'm surprised you can't find a supplier who can offer you a 'true blue'. I always seem to have someone at my door telling me how great the passivates they supply are.

Dougie Lightfoot
- Fife, Scotland

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