Waterborne zinc-rich primer compositions

Details Waterborne zinc-rich primer compositions Waterborne zinc-rich primer compositions

1996-05-14

1997-07-29

Utech, Benjamin

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273882, 4273884, B05D 714

Patent

active

056520247

ABSTRACT:
A multi-component waterborne corrosion resistant coating composition used as an organic zinc rich primer for protecting metal substrate from corrosion. The composition includes zinc dust, a crosslinking component and a polymeric component produced from a low Tg polymer and an amine functional curing agent. These components of the composition are stored separately and then mixed prior to applying the coat of the composition over metal substrate.
The coating composition of the present invention has longer pot life than conventional waterborne corrosion resistant coating composition.

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patent: 5071902 (1991-12-01), Langerbeins et al.
The Characterization Of Polymers, Rohm and Haas Company Booklet, CM-106, Sep./1976.
Steel Structures Painting Council SSPC-PS 24.00, Latex Painting System For Industrial and Marine Atmospheres, Performance-Based, Aug. 1,1991.
Steel Structures Painting Council, SSPC-PS Guide 12.00, Guide For Selecting Zinc-Rich Painting Systems, Nov. 1, 1982.
ASTM Designation: D1210-79, Standard Test Method For Fineness Of Dispersion Of Pigment-Vehicle Systems, Reapproved 1988.

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