WB HRZS® Single Coat System

1 of 2 products in this brand
WB HRZS® Single Coat System is a state-of-the-art, 100% WaterBorne High Ratio Zinc Silicate designed to protect steel structures. Originally developed by NASA to protect launch gantries from highly corrosive coastal ocean environments, WB HRZS® Single Coat System has been utilized successfully on many steel structures in Marine, Hydro, Military, and many other industries where high performance products are required.

Product Type: 1K (1 component) Coating, Waterborne Coating

Features: Anti-Fouling, Corrosion Resistant, Good Abrasion Resistance, Good Adhesion, Temperature Resistance, UV Resistant

Compatible Substrates & Surfaces: Metal, Steel

Application Method: Spray

Technical Data Sheet
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Identification & Functionality

Features & Benefits

Labeling Claims
Key Features
  • 100% WaterBorne High Ratio Zinc Silicate (Inorganic)
  • Excellent adhesion to steel (chemical bond), will not undercut
  • Provides both galvanic and cathodic corrosion protection
  • Single coat system, no topcoat required
  • Self-curing (air dry)
  • Passes hot seawater erosion test (MIL-P-23236)
  • 10,000+ hour successful salt fog testing (ASTM B117)
  • High temperature resistance (750°F)
  • UV resistant
  • NACE TM0304 approved
  • High abrasion resistance
  • Hard-fouling resistance to zebra mussels, barnacles, etc.
  • 0 VOC

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Cure Method
  • Marine (ships, offshore rigs, dry-docks, barges, etc.)
  • Railcars
  • Hydro (gates, trash racks, turbines, etc)
  • Storage Tanks
  • Bridges
  • Pipelines (buried or above ground)
Surface Preparation

All steel surfaces should be prepared to SSPC-SP10, Near-White Metal with a minimum of 1.0 mil profile.


While mixing, add Part B (Metallic Zinc Powder) to Part A (Silicate) with constant stirring. DO NOT ADD PART A TO PART B. After mixing, pour the product through a 40-mesh screen into a pressure pot or second pail. Continually agitate while applying the mixed product.


Automated or conventional spray. Contact your Polyset Technical Representative for equipment recommendations.

Technical Details & Test Data

Technical Details
Part A Liquid Silicate Binder
Viscosity (cPs) 20-40 (ASTM D2196)
Appearance Clear Liquid
Part B Fine Metallic Zinc Powder (ASTM D520)
Mix Ratio
Parts by Weight 1.00 Part A : 2.55 Part B
Parts by Volume 2.33 Part A : 1.00 Part B
Mixed Properties Gray/Matte
Color 120 ± 20
Viscosity (cPs) 25.0 ± 0.2
Density (Lbs./Gal.) 3.00 ± 0.1
Density (kg/L) 80 ± 2
Solids in Mixed Solution (wt. %) 68 ± 2
Solids in Mixed Solution (vol. %) 91 ± 2
Zinc in Dry Film (wt. %) 77 ± 2
Zinc in Dry Film (vol. %) 1090 ft2 / Gal. at 1.0 mil DFT
Estimated Coverage 6-8 Hrs at 70°F
Pot Life Thickness: 6-8 mils DFT
Recommended Dry Film Thickness
VOC Content 0
Drying Time 15-30 Minutes at 77°F

Storage & Handling

Shelf Life

1 year in the original, unopened containers


Store between 60-95°F (16-35°C)