244
Fundamentals of Corrosion
TabLE 7.13 (continued)
Multilayer Paint Systems Requiring Commercial Blast (SSPC-SP-6) for Surface
Preparation
System D Aluminum Epoxy Mastic/Epoxy Finish
Paint Layers:
One coat aluminum epoxy mastic: 4–6 mil dft (100–150 μm)
One coat epoxy finish: 4–6 mil dft (100–150 μm)
Properties:
Can be used on tight rust and marginally prepared surface
The epoxy finish coat is available in a variety of colors and has good overall chemical
resistance
May be used on carbon steel or concrete
Concrete must be clean, rough, and cured at least 28 days
Hand or power tool cleaning, including water blasting, may be used for surface preparation
System E Aluminum epoxy mastic/acrylic finish
Paint Layers:
One coat aluminum epoxy mastic: 4–6 mil dft (100–150 μm)
One coat acrylic finish: 2–3 mil dft (50–75 μm)
Properties:
May be used on tight rust and marginally prepared surfaces
The acrylic finish coat is available in a variety of colors and has good overall chemical
resistance
This is an excellent maintenance system
Normally used on carbon steel and concrete
System F Epoxy Mastic/Epoxy Mastic
Paint Layers:
One coat epoxy mastic: 4–6 mil dft (100–150 μm)
One coat epoxy mastic: 4–6 mil dft (100–150 μm)
Properties:
May be used on tight rust and marginally prepared surfaces
The substrate is protected by the formation of a tight barrier stopping moisture from reaching
the surface
Normally used on steel or concrete
Concrete must be clean, rough, and cured at least 28 days
If necessary, hand or power tools may be used for cleaning
System G Epoxy Primer/Epoxy Finish
Paint Layers:
One coat epoxy primer: 4–6 mil dft (100–150 μm)
One coat epoxy finish: 4–6 mil dft (100–150 μm)
—continued