MIL-HDBK-1110
Textured Coating System for Concrete or Masonry
Surface
Preparation
Primer
Topcoat
Power wash
one coat primer recommended
one coat TT-C-555
by supplier of textured
20 - 30 mils dft
coating dft varies with
supplier
4.4.2.4
Epoxy Coatings. A two-coat epoxy system will seal and
protect concrete/masonry surfaces well. An aliphatic urethane
finish coat should be used rather than the second epoxy coat on
exterior surfaces to improve the weatherability.
Exterior Epoxy/Urethane System for Concrete or Masonry
Surface
Preparation
Primer
Topcoat
Power wash
one coat MIL-P-24441
MIL-C-85285
Formula 15
Type II
3 mils dft
2 mils dft
Interior Epoxy System for Concrete or Masonry
Surface
Preparation
Primer
Topcoat
Power wash
one coat MIL-P-24441
one coat MIL-P-24441
Formula 150
of another color
3 mils dft
2 mils dft
4.4.3
Recommendations for Steel. Presently, a high-
performance coating system is recommended to prolong the service
before it becomes necessary to remove and replace it. Costs in
coating removal, especially where there are restrictions on
abrasive blasting, are very high.
Abrasive blasting is always preferred to alternative
methods of preparing steel surfaces for painting. It cleans the
steel and provides a textured surface to promote good primer
adhesion. A commercial blast (SSPC SP 6) is normally adequate
for alkyd and epoxy primers for a moderate environment. A near-
white blast (SSPC SP 10) is required for epoxies, including zinc-
rich epoxies, exposed to a severe environment such as marine
atmospheric or water or fuel immersion. Some manufacturers may
specify a white metal blast (SSPC SP 5) for particular coatings
for special applications. It is important that a contract
specification does not conflict with the coating manufacturer's
43