Cortec Corporation has introduced a new line of water-based epoxy primers, the VpCI-395.
VpCI-395 is a 2K water-based epoxy one coat system that can be applied directly to metal for use as a protective primer in harsh, outdoor, unsheltered applications. VpCI-395 is designed to provide multi-metal protection that competes with most paints and zinc-rich primers and perform well in corrosive salt spray and humidity test conditions. Cortec states that VpCI-395 is dry to touch in 20-30 minutes and dry to handle in one to two hours, curing to a pencil hardness of H in three to seven days. It provides high level 5B adhesion, integral to a good coatings bond.
VpCI-395 Water-Based Epoxy Primer can be helpful when an anti-corrosion coating is needed for immersion applications and chemical resistance. A urethane topcoat is can be used for enhanced durability in outdoor conditions, but a second layer of VpCI-395 can also be used as a topcoat in interior-only applications (no UV exposure).
In addition to performing well in immersion applications, VpCI-395 also has other advantages that recommend its use. A prime characteristic is its two-component (2K) makeup. Two-component coatings are designed to offer coating durability because of chemistry cross-linking that can only take place during on-the-job mixing of a two-part system. Other characteristics of VpCI-395 are that it is water-based and has a low VOC of 0.2 lbs/gal (24 g/L), limiting worker exposure to solvents and facilitating easier cleanup.
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