MIL-HDBK-1110
unless otherwise stated. Alkyd and other oil-based coatings
should not be applied directly to concrete or masonry surfaces,
because the alkalinity in the concrete will hydrolyze the oil in
the binder and cause the coating to peel. However, they can be
applied over concrete or masonry surfaces primed with waterborne
coatings to produce a tougher, more washable finish.
Waterborne Coating System for Concrete/Masonry
Surface
Preparation
Primer/Topcoat
Power wash
two coats of TT-E-2784 or other
appropriate* waterborne coating
1.5 mils dft each coat
*Interior or exterior product, desired gloss and color available.
TT-P-29 is less expensive and normally used on interior surfaces.
4.4.2.2
Elastomeric Coatings. Elastomeric, waterborne acrylic
coating systems also perform well to seal and protect
concrete/masonry surfaces and are normally very low in VOCs.
They can successfully bridge fine or larger caulked cracks.
There are no Government or military specifications for them.
Elastomeric Waterborne Acrylic System for Concrete or Masonry
Surface
Preparation
Primer
Topcoat
Power wash
one coat primer recommended
one coat
by supplier of elastomeric
elastomeric
coating dft varies with
acrylic coating
supplier
10 - 20 mils dft
4.4.2.3
Textured Coatings. Textured coatings system can bridge
fine cracks and waterproof from wind-driven rain. They are
normally applied over a primer recommended by the supplier to
insure good adhesion. They are available in a variety of
textures and may be waterborne or oil or rubber-based products
with a VOC limit of 250 grams per liter.
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