Sign In
Skip Navigation LinksCoatings & Inks/United States - English/Grace Anti-corrosion Pigments - SHIELDEX®

Coatings & Inks

     

​​​​SHIELDEX-455x250_v3.png

​​SHIELDEX® Anti-Corrosion Pigments


 ​​​SHIELDEX® non-phosphate, chromium free anti-corrosive pigments protect metal when used in coil coating primers, general industrial primers, and primers for automotive and marine coatings. This highly effective, post-addable corrosion inhibitor meets the strictest environmental standards and requirements, providing a non-toxic alternative to chrome (VI) and zinc phosphate compounds to produce environmentally-compliant paints and radiation cured coatings. SHIELDEX® rust-inhibiting pigment performance has been extensively tested under a variety of conditions and has been proven by accelerated and innovative natural weathering technology. 

Customer Service and Support


​In 1949, Grace pioneered the use of synthetic silica in high performance industrial coating applications. Our expertise in coatings additives is evident in the performance improvements you can measure. Grace’s fundamental understanding of particle engineering enables us to tune surface, pore, and particle properties for specific applications and helps deliver solutions tailored specifically for your application. And, our committed R&D and technical support teams’ comprehensive understanding of industry-specific processes and issues ensure you receive the maximum value from our products.​

​For more information on SHIELDEX® Anti-Corrosion Pigments please download the following brochures:


​Typical Chemical and
Physical Properties
​SHIELDEX® AC 5 Pigment​SHIELDEX® AC 3 Pigment​SHIELDEX® 
​C 303 
Pigment
​SHIELDEX® CS 311
 Pigment
​Appearance​​​White, odorless powder​​​​​ ​ ​ ​
​Average particle size (μm)
​5

3

​3

​3
​pH​9​9​9​8.7
​Density (g/cm3)​1.8
​1.8​1.8​1.8
​Oil Absorption (g/100 g)​60​60​80​​80

​SHIELDEX® AC 5 Pigment​Standard Grade:
  • Solventborne primers
  • Waterborne primers
  • Film thickness ≥ 20 μm
Waterborne systems:
1-4 wt.-% on formulation​

Solventborne systems:
3-7 wt.-% on formulation​
​​SHIELDEX® AC 3 Pigment
​​​Thin film systems:
  •  Wash primers
  • 2-pack systems
  • Film thickness ≤ 10 μm
Wash primers:
3-5 wt.-% on formulation

2-pack systems:
5-7 wt.-% on formulation

​​SHIELDEX® C 303 Pigment​​Special grade for reactive primers:
  • Coil coatings
  • Powder coatings
​Coil coatings:
6-9 wt.-% on formulation

Powder coatings:
≈10 wt.-% on formulation

SHIELDEX® CS 311 Pigment
​​Primers, coil, GI, automotive;
especially for acid-cured systems

Coil coatings:
6-9 wt.-% on formulation

Powder coatings:
≈10 wt.-% on formulation​