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Abrasive grinding and sandblasting are common ways to restore rusty metal surfaces and prepare them for painting. A much easier and very effective alternative is to coat the rust with CorrVerter, a water-based rust passivating primer from Cortec Corp.
CorrVerter is a fast drying, water-based one-coat system that converts rusted surfaces to a hydrophobic passive layer and prevents further rusting through its unique formulation of chelating agents and PVDC resins. CorrVerter simplifies surface prep. All that is needed is to remove the loose rust with a wire brush before spraying or brushing CorrVerter onto the corroded surface.
CorrVerter can be top coated with many different water-based and solvent-based coatings, including urethanes, epoxies, acrylics and alkyds. It shows excellent 5B adhesion (ASTM D3359) to coatings such as Cortec’s VpCI-396, a corrosion inhibiting urethane topcoat.
The applications where CorrVerter have been or can be used are countless:
• Preserving rusted equipment on drilling rigs
• Restoring rusty plows and trucks exposed to harsh winter deicing salts
• Preserving a Gothic cathedral
• Restoring rusty pipe and tank exteriors
• Protecting vulnerable base bolts on wind turbine towers
• Repairing a rusty metal roof
Related Glossary Terms
- abrasive
abrasive
Substance used for grinding, honing, lapping, superfinishing and polishing. Examples include garnet, emery, corundum, silicon carbide, cubic boron nitride and diamond in various grit sizes.
- brushing
brushing
Generic term for a curve whose shape is controlled by a combination of its control points and knots (parameter values). The placement of the control points is controlled by an application-specific combination of order, tangency constraints and curvature requirements. See NURBS, nonuniform rational B-splines.
- grinding
grinding
Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.
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