MIL-PRF-24667C
Types II, III, IX, and X (rolled) non-skid topcoat shall cover not less than 25 ft2/gal (0.61 m2/L) or more
b.
than 35 ft2/gal (0.86 m2/L).
Types II, III, IX, and X (trowelled) non-skid topcoat shall cover not less than 20 ft2/gal (0.49 m2/L) or more
c.
than 22 ft2/gal (0.54 m2/L).
Types IV and IX (sprayed) non-skid topcoat, shall cover no more than 60 ft2/gal (1.5 m2/L).
d.
3.18.2 Primers. When tested in accordance with 4.5.15, primers shall cover an abrasive blasted surface (with
surface profile of 75 to 112 micro meters (3.0 to 4.5 mils)) to between 150 and 500 ft2/gal (3.68 and 12.27 m2/L).
3.18.3 Intermediate coats (type III only). When tested in accordance with 4.5.15, intermediate coats shall cover
not more than 22 ft2/gal (0.54 m2/L).
3.19 Drying time (types I-X). When tested in accordance with 4.5.16, the maximum drying times for all types,
except Types VII and VIII, shall be as follows. Any softening or lifting of coats of a system shall constitute failure:
a.
The maximum drying time of the non-skid topcoat shall be 48 hours at 50 °F (10 °C), 24 hours at 75 °F
(24 °C), and 16 hours at 120 °F (49 °C).
b.
The maximum drying time of the primer or intermediate coats shall be 24 hours at 50 °F (10 °C), 18 hours
at 75 °F (24 °C), and 16 hours at 120 °F (49 °C).
3.19.1 Type VII. The maximum drying time for the complete application of Type VII systems is 24 hours at
75 °F (24 °C).
3.19.2 Type VIII. The maximum drying time of the primer or intermediate coats shall be 48 hours at 35 °F
(2 °C) and 24 hours at 50 °F (10 °C).
3.20 Pot life (types I-X). When tested in accordance with 4.5.17, the minimum pot life values for each coating
in the non-skid coating system (except Type III intermediate coats) shall be in accordance with table X.
TABLE X. Pot life.
Hours, minimum
35 °F
50 °F
75 °F
90 °F
(2 °C)
(10 °C)
(24 °C)
(32 °C)
Type I
3
2
1
Types II, III, IV
6
4
2
and X
Types V, VI, VII
2
0.75
0.375
and IX
Type VIII
4
2
3.20.1 Pot life (type III intermediate coats). When tested in accordance with 4.5.17 the minimum pot life
values for Type III intermediate coats shall be 1 hour at 50 °F (10 °C), 40 minutes at 75 °F (24 °C), and 20 minutes
at 90 °F (32 °C).
3.21 Fire resistance. When tested in accordance with 4.5.18, the non-skid system shall be in accordance with
the requirements of MIL-STD-1623.
3.22 Flexibility (type III and X only). When tested in accordance with 4.5.19, the Type III or Type X coating
system shall show no breaking, cracking, or loss of adhesion at the bend. Failure within 0.5 inch (12 millimeters) of
the edge of the panel shall be ignored.
3.23 Adhesion of the intermediate coat (type III only). When tested in accordance with 4.5.20, the minimum
adhesion strength of the intermediate coat shall be 400 psi.
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