AerOseal®


AerOseal is a specially formulated liquid that prevents penetration of moisture into ceramic insulations. It is effective on magnesium oxide, aluminum oxide and similar materials used in thermocouples,  metal sheathed conductor cable, electrical heating elements, and ceramic electronic components. Through diffusion, AerOseal® forms a positive moisture barrier, yet permits the coated part to "breathe".

AerOseal® is a clear, colorless, inorganic liquid of a proprietary, patented composition. It is non-toxic and contains to boron or equivalent nuclear poisons and is essentially harmless.

When applied properly, the seal is effective over the temperature range of -240 to 420ºC (-400 to 788ºF). It can withstand thermal shock from +420ºC  (788ºF) to -185ºC (-300ºF) in 2 seconds. Exposure to temperatures above +420ºC (788ºF) will cause the seal to deteriorate without affecting insulation resistance properties.

The shelf life of AerOseal® is indefinite if cap is kept securely closed while not in use.

 

DIRECTIONS FOR USE
1. Heat part to be sealed at 400ºF. for a minimum of three hours to remove all traces of moisture.
2. Remove from oven and immerse immediately in AerOseal® Soak entire part for at least four hours.
3. After soaking, heat part in circulating air oven at 500ºF for a minimum of five hours.
4. It is recommended that normal volatile fume precautions be taken when performing step 3. A well ventilated air circulating oven, preferably of the forced draft type should be used.

KEEP LID TIGHTLY CLOSED WHEN NOT IN USE.
(U.S. Pat. No. 3,032,444)

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