TABLE 8.5
Multilayer Paint Systems Requiring Surface to be Abrasive Blasted in Accordance
with SSPC-SP-10 Near White Blast
System A. Aluminum–Epoxy Mastic/Aluminum–Epoxy Mastic
Paint layers
One coat aluminum–epoxy mastic: 4–6 mils dft (100–150 m m)
One coat aluminum-epoxy mastic: 4–6 mils dft (100–150 m m)
Properties
Tolerates poorly preparedsurfaces and provides excellent barrier protection. Athirdcoat may
be added for additional protection. Can be used on carbon steel and concrete. Concrete must
be clean, rough, and cured at least 28 days. If necessary this system can be applied to surfaces
that are pitted or cannot be blasted.H owever, the service life will be reduced.
System B. Epoxy Phenolic Primer/Epoxy Phenolic Finish/Epoxy Phenolic Finish
Paint layers
One coat epoxy phenolic primer: 8mils dft (200 m m)
One coat epoxy phenolic finish: 8mils dft (200 m m)
One coat epoxy phenolic finish: 8mils dft (200 m m)
Properties
Because of this system’s outstanding chemical resistance it is often used in areas subject to
frequent chemical spills. The finish coats are available in alimited number of colors. Normally
used on carbon steel and concrete. Concrete must be clean, rough, and cured at least 28 days.
System C. Epoxy Phenolic Primer/Epoxy Phenolic Lining/Epoxy Phenolic Lining
Paint layers
One coat epoxy phenolic primer: 8mils dft (200 m m)
One coat epoxy phenolic lining: 8mils dft (200 m m)
One coat epoxy phenolic lining: 8mils dft (200 m m)
Properties
Because of the system’s outstanding overall chemical resistance it is suitable for lining areas
subject to flowing or constant immersion in avariety of chemicals. Normally used on carbon
steel and concrete. When used on concrete the surface must be clean, rough, and cured at least
28 days.
System D. Epoxy/Epoxy
Paint layers
One coat epoxy: 4–6 mils dft (100–150 m m)
One coat epoxy: 4–6 mils dft (100–150 m m)
Properties
Twocoats of the same product are applied providing ahigh build protection. Can be used in
immersion service without the addition of corrosion inhibitors. When used in potable water
systems the product must meet Federal Standard61. Athirdcoat may be added for additional
protection. Normally used on carbon steel and concrete.
System E. Coal TarE poxy/CoalT ar Epoxy
Paint layers
One coat coal tar epoxy: 8mils dft (200 m m)
One coat coal tar epoxy: 8mils dft (200 m m)
( continued )
Corrosion of Linings and Coatings
502
CAT8247—CHAPTER 8—17/10/2006—14:20—SRIDHAR—XML MODEL B–pp. 487–507
Multilayer Paint Systems Requiring Surface to be Abrasive Blasted in Accordance
with SSPC-SP-10 Near White Blast
System A. Aluminum–Epoxy Mastic/Aluminum–Epoxy Mastic
Paint layers
One coat aluminum–epoxy mastic: 4–6 mils dft (100–150 m m)
One coat aluminum-epoxy mastic: 4–6 mils dft (100–150 m m)
Properties
Tolerates poorly preparedsurfaces and provides excellent barrier protection. Athirdcoat may
be added for additional protection. Can be used on carbon steel and concrete. Concrete must
be clean, rough, and cured at least 28 days. If necessary this system can be applied to surfaces
that are pitted or cannot be blasted.H owever, the service life will be reduced.
System B. Epoxy Phenolic Primer/Epoxy Phenolic Finish/Epoxy Phenolic Finish
Paint layers
One coat epoxy phenolic primer: 8mils dft (200 m m)
One coat epoxy phenolic finish: 8mils dft (200 m m)
One coat epoxy phenolic finish: 8mils dft (200 m m)
Properties
Because of this system’s outstanding chemical resistance it is often used in areas subject to
frequent chemical spills. The finish coats are available in alimited number of colors. Normally
used on carbon steel and concrete. Concrete must be clean, rough, and cured at least 28 days.
System C. Epoxy Phenolic Primer/Epoxy Phenolic Lining/Epoxy Phenolic Lining
Paint layers
One coat epoxy phenolic primer: 8mils dft (200 m m)
One coat epoxy phenolic lining: 8mils dft (200 m m)
One coat epoxy phenolic lining: 8mils dft (200 m m)
Properties
Because of the system’s outstanding overall chemical resistance it is suitable for lining areas
subject to flowing or constant immersion in avariety of chemicals. Normally used on carbon
steel and concrete. When used on concrete the surface must be clean, rough, and cured at least
28 days.
System D. Epoxy/Epoxy
Paint layers
One coat epoxy: 4–6 mils dft (100–150 m m)
One coat epoxy: 4–6 mils dft (100–150 m m)
Properties
Twocoats of the same product are applied providing ahigh build protection. Can be used in
immersion service without the addition of corrosion inhibitors. When used in potable water
systems the product must meet Federal Standard61. Athirdcoat may be added for additional
protection. Normally used on carbon steel and concrete.
System E. Coal TarE poxy/CoalT ar Epoxy
Paint layers
One coat coal tar epoxy: 8mils dft (200 m m)
One coat coal tar epoxy: 8mils dft (200 m m)
( continued )
Corrosion of Linings and Coatings
502
CAT8247—CHAPTER 8—17/10/2006—14:20—SRIDHAR—XML MODEL B–pp. 487–507