TO 1-1-700 - Robins Air Force Base
TO 1-1-700 - Robins Air Force Base
TO 1-1-700 - Robins Air Force Base
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<strong>TO</strong> 1-1-<strong>700</strong><br />
Table 12-1. Sealing Compounds - Continued<br />
Specification Types Available Properties Intended Use<br />
SAE AMS 3374, SEALANT, SILICONE 75<br />
MIL-S-85420, SEALING COMPOUND, QUICK<br />
REPAIR, LOW TEMPERATURE CURING 53<br />
SAE AMS 3374 /1, /2, /3, & /4<br />
(supersedes MIL-S-38249),<br />
Sealing Compound, <strong>Air</strong>craft<br />
Firewall<br />
/1= Type 1<br />
/2= Type 2<br />
/3= Type 3<br />
/4= Type 4<br />
Type 1 (one-part high<br />
temp. silicone) - condensation<br />
cured<br />
Type 2 (two-part high<br />
temp. silicone) - addition<br />
cured<br />
Type 3 (two-part high<br />
temp. silicone) - condensation<br />
cured<br />
Type 4 (two-part<br />
polysulfide)<br />
One-component, Type 1;<br />
Two components, Types 2, 3,<br />
& 4;<br />
Room temp cure;<br />
Service Temp; -65 ºF to +400 ºF<br />
(-54 °C to + 204 °C); withstands<br />
flash temperature of 2000 °F<br />
(1093 °C);<br />
Peel strength: 10 lb/in width<br />
(min);<br />
No corrosion inhibitors;<br />
Sealing structures exposed to<br />
very high temperatures<br />
against the passage of air and<br />
vapors. Cures on exposure to<br />
air.<br />
NOTE: Although this sealant<br />
was originally intended for<br />
sealing aircraft firewalls, it is<br />
included here because it is<br />
used for other applications.<br />
Resists fuel, oil, and hydraulic<br />
fluid.<br />
MIL-S-85420, Sealing Compounds,<br />
Quick Repair, Low<br />
Temperature Curing Polysulfide,<br />
for <strong>Air</strong>craft Structures<br />
Type I dichromate cure system<br />
Type II manganese cure system<br />
Class A (thin) - for<br />
brush application<br />
Class B (thick) - for<br />
sealant gun or spatula<br />
application<br />
Two-components;<br />
Low Temp Cure;<br />
Service Temp: -65 ºF to +200 ºF<br />
(-54 °C to + 93 °C);<br />
Peel strength: 10 lb/in width<br />
(min);<br />
Quick repair sealing of structures<br />
at low temperatures.<br />
Use only with the recommended<br />
adhesion promoter/<br />
primer for optimum results.<br />
This sealant should be stored<br />
at a temperature not to<br />
exceed +80 ºF or poor adhesion<br />
will result.<br />
No corrosion inhibitors;<br />
Resists fuel, oil, and hydraulic<br />
fluid.<br />
NOTE: Although this sealant<br />
was originally intended for<br />
sealing aircraft structures, it<br />
is included here because it is<br />
used for other applications.<br />
12-5