TM 5-1940-321-13&P
NOTE:
The following mixture is used for latexing: 1/2 liter latex and 1/2 liter of water.
Thoroughly mix the latex water. The mixture should remain homogenous. A
quantity of 1000 cc per compartment is required.
c.
Latexing Procedure
( 1 ) Deflate all buoyancy tube compartments (or keel) to be latexed and remove the
metal valve inserts from the intercommunicating valves. Remove the lower
buoyancy tube inflation hose isolation clamps.
( 2 ) Turn the intercommunicating valves to the 12 o clock position. Look inside the
valves to verify that the windows in the valve are aligned. Insert a 3-foot length
of 5/16 diameter plastic tubing into the valve and through the aligned windows
into the buoyancy tube air compartment.
( 3 ) Attach a funnel to the opposite end of the tubing.
( 4 ) Pour 1000 cc of latex and water mixture into the funnel and allow all of it to flow
into the air compartment.
( 5 ) Repeat steps ( 2 ) through ( 4 ) for each compartment to be latexed.
Immediately clean the tubing and funnel with water.
( 6 ) Install red plastic caps over CO2 overpressure valves.
( 7 ) Replace the metal valve inserts in the intercommunicating valves and inflate
each compartment to 350 mbar (5 psi).
( 8 ) Turn the craft in all directions several times so that the latex flows all over the
interior surfaces and is forced into the fabric pinholes by the air pressure.
Concentrate efforts on directing the latex to areas which exhibited pinhole
leaks in the air leak test.
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