s.
If a second patch is being applied, proceed with step t, below; otherwise proceed to step v.
NOTE
Maximum shelf life of mixed adhesive is given in table 3-4. If second patch is to be applied, ensure that it
is done within this time limit. Repair will not succeed if mixed adhesive sits too long.
t.
Let first patch set for a few (approximately 2 to 3) minutes.
u.
Repeat steps n through r, above, to apply second (outside) patch. Outside patch must be aligned with inside
patch (outline of inside patch will be visible).
v.
Allow repair to set until cured before flexing fabric or putting tank back into service. Approximate curing times
are given in Table 3-5.
Table 3-5. Curing Times For Fabric Repairs.
These times are for a thickness of approximately 0.10 inches (0.25 cm); they will be reduced for thicker
sections and extended for thinner sections.
Temperature
Movement Or Use
Full Mechanical
Immersion
Involving No Loading
Or Thermal
In
Or Immersion
Loading
Chemicals
41 F (5°C)
6 hours
72 hours
120 hours
(5 days)
50°F (10°C)
4 hours
48 hours
84 hours
59°F (15°C)
3 hours
48 hours
72 hours
68°F (20°C)
2 hours
24 hours
60 hours
77°F (25°C)
1.5 hours
24 hours
48 hours
86OF (30-C)
1 hour
24 hours
36 hours
3-6.
End Clamp Assembly
One end of the tank is closed by a mechanical assembly. This mechanical assembly consists of the following
items:
Handles
Top Clamps
Bottom Clamps
Cap Screws
Washers
3-8
Change 5
