PORE BLOCKER™ 200 water soluble post treatment process is designated for the protection of a thin layer of gold against discolouration due to corrosion.

Watershed 18 – is a liquid rinse aid to promote faster drying and reduce staining and spotting. – is added to the penultimate rinse tank – has a particular affinity for metals providing mild corrosion protection. – contains no NPE’s (nonyl phenol ethoxalates) – has no adverse effect on solderability of pure tin deposits.