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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
120
110
100
90
20% RH FUEL RESISTANT CURE
45% RH 60% RH
90% RH
TEMPERATURE, `F
80
70
60
50
0 5 101520253035
FUEL RESISTANT CURE TIME, HOURS
DeSoto (MIL-C-27725) Compound Cure Time
as Changed by Temperature and Relative Humidity
Figure 705
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A 737-300/400/500MAINTENANCE MANUAL
140
20% RH
45% RH FULL CURE
60% RH
90% RH
0 2010 504030 60 70
FULL CURE TIME, HOURS
130
120
110
100
90
80
TEMPERATURE, `F
DeSoto (MIL-C-27725) Compound Cure Time
as Changed by Temperature and Relative Humidity
Figure 706
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A 737-300/400/500MAINTENANCE MANUAL
% REL CURE TIME (HOURS)
HUMIDITY TEMP. 65 `F TEMP. 70 `F
20 45 65 90 392 376 344 240 228 212 184 124
01030 507090
CURE TIME, HOURS
Products Research (MIL-C-27725) Compound Cure Time
as Changed by Temperature and Relative Humidity
Figure 707
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A
737-300/400/500MAINTENANCE MANUAL
S 797-086
(6) Do a check for leaks (AMM 28-11-00/601).
TASK 28-11-00-377-108
6. Keep and Mix the Corrosion Resistant Finish Correctly
_____________________________________________________
A. Consumable Materials
(1) Corrosion Resistant Finish for Fuel Tanks
(a) C00307 BMS 10-20, Type II (recommended)
NOTE: BMS 10-20, Type II can be used
____ with BMS 5-26, Type II sealant.
1) 454-4-1, Bostik-Finch, Inc.
CAUTION: USE MIL-C-27725 FINISH MATERIAL ONLY
_______ AS A TOPCOAT. IF MIL-C-27725 IS NOT USED AS A TOPCOAT IT CAN CAUSE DAMAGE.
(b) C00321 MIL-C-27725 1) 823-011 or 823-730, DeSoto Chemical Coatings, Inc.
2) PR-1560M, PR-1560MC, PR-1560MK. Products Research Co.
B. Correctly Keep Corrosion Resistant Finish That is Not Mixed
S 557-109
(1)
You can keep BMS 10-20, Type II 12 months at temperatures between 40°F and 90°F (4.4°C and 32.2°C) from the date of manufacture.
S 557-110
(2)
For MIL-C-27725 corrosion resistant finishes:
(a) You can keep DeSoto 823-011 or 823-730 for 12 months at temperatures between 50°F and 90°F (10.0°C to 32.2°C) from the date of manufacture.
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