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HALOX® CW-491 is a low-cost, moderate solubility calcium phosphosilicate-based corrosion inhibitor designed to provide mid-level corrosion protection in water and solvent-based coatings. It is zinc-free! It can be used in wash primers, direct-to-metal finishes, 2K solvent-based epoxies, water reducible epoxy esters, polyvinyldichloride resins, and polyesters.

Water Reducible Epoxy Ester Primer
Salt Spray – 168 hrs. – CRS – 2.0 mils. (50 microns)

Water Reducible Epoxy Ester Primer using HALOX® CW-491

SDS
TECH DATA SHEET

Advantages

HALOX® CW-491 contains no zinc or other heavy metals and therefore has a low specific gravity. It also maintains a neutral pH and can withstand outdoor (real world) corrosion performance. HALOX® CW-491 can replace zinc chromate-based corrosion inhibitors.

Mechanism

Precipitation and cathodic passivation.

News & Articles

Starting Point Formulations

Medium-Oil Alkyds
  • DURAMAC 204-1409
    • US Medium Oil Alkyd White Primer using HALOX® CW-491
  • DURAMAC HS 57-5808
    • USEurope High Solids Medium Oil Alkyd Primer using HALOX® CW-491
  • REZIMAC HS 57-5703
    • USEurope High Solids Phenolic Modified Medium Oil Alkyd Primer using HALOX® CW-491
Solvent-Based Epoxy
  • EPON 1001-X-75
    • USEurope 2K Polyamide Cured Epoxy Red Iron Oxide Primer using HALOX® CW-491
Solvent-Based Polyvinyl Butyral
  • MOWITAL 30-HH
    • USEurope Chromate-Free 2K Epoxy Phenolic Etch Primer using HALOX® CW-491
  • MOWITAL B-30 H
    • USEurope Chromate-Free 1K Epoxy Etch Primer using HALOX® CW-491
Water Reducible Alkyd
  • CHEMPOL 10-0091
    • US Water Reducible Alkyd Yellow Iron Oxide Primer using HALOX® CW-491
  • MAINCOTE AE-58
    • US High Performance 2K Water-Based Acrylic/Epoxy using HALOX® CW-491
Water-Based Epoxy
  • BECKOPOX VEP 2382
    • USEurope Water-based 2K High Performance Anti-Corrosion Primer using HALOX® CW-491
  • MAINCOTE AE-58
    • USEurope High Performance 2K Water-Based Acrylic/Epoxy using HALOX® CW-491
  • WATERPOXY 1455
    • USEurope 2K Water-based Solid Epoxy Primer with HALOX® CW-491 and BASF® ALCOPHOR 827 Synergy
Water-Based Epoxy Dispersions
  • EPI-REZ 6520 WH-53
    • USEurope Heavy Metal Free 2K Water-based Epoxy Dispersion Industrial Maintenance Primer using HALOX® CW-491
    • USEurope Heavy Metal Free 2K Water-based Epoxy Dispersion Marine Primer using HALOX® CW-491
Water-Based Epoxy Ester
  • RESYDROL AX 237 with 70BG
    • USEurope Water Reducible Epoxy Ester Primer using HALOX® CW-491
Water-Based Hybrid
  • MAINCOTE AE-58 / EPI-REZ 3510-W60
    • USEurope High Performance 2K Water-based Acrylic/Epoxy using HALOX® CW-491 and SHIELDEX® AC5 Synergy
Water-Based Latex
  • MAINCOTE AE 58
    • Europe High Performance 2K Water-based Acrylic/Epoxy using HALOX® CW-491 and SHIELDEX® AC5 Synergy
  • MAINCOTE HG-56
    • US Water-based Acrylic Latex Primer using HALOX® CW-491
  • MAINCOTE PR-15
    • US Water-based Acrylic Shop Primer using HALOX® CW-491 & SZP-391
  • MAINCOTE PR-71
    • US General Purpose/Low-Cost, Water-based Primer using HALOX® CW-491
  • NEOCRYL 6085
    • US White DTM based on DSM NEOCRYL A-6085, and HALOX® CW-491 & HALOX® FLASH-X® 150
  • TEXICRYL 17-0376
    • US Heavy-Metal-Free Syrenated Acrylic Red Oxide Primer using HALOX® CW-491
Water-Based Phenoxy
  • InChemRez PKHW-34
    • USEurope Water-based, Heat-Resistant Phenoxy Stoving Enamel using HALOX® SZP-391 & HALOX® CW-491
Water-Based PVDC
  • HALOFLEX 202
    • US PVDC Based Primer

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