Meps and ultrasound


Nathaniel Firethorn
March 9, 2003, 03:24 PM
Hi, all,

Will Meprolights survive a trip through the ultrasonic cleaner, or should they be removed first?

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March 9, 2003, 11:10 PM
I'd check with the manufacturer.
My gut reaction is it's Ok, but ultrasonics can do strange things.

A lot depends on the solution used as a cleaner agent, since ultrasonics often speed up any action that attacks the object in the tank.

Since the tritium vials are "glued" in the sights, the ultrasonic action might break the bond down.

I don't know what effect the ultrasonics would have on the vials.

Better check the maker, than sorry. A fast email ought to do it.

Nathaniel Firethorn
March 10, 2003, 09:43 AM
I'd love to, but their email bounces and the "Contact Us" part of their website crashes. (Besides being infested with useless Schlockwave.) :banghead: :cuss:

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Nathaniel Firethorn
March 10, 2003, 12:03 PM
However, Kimber (the North America distributor for Meps) responded with the following:

MEPROLIGHT has conducted experiments to determine the effects of ultrasonic cleaning on their tritium illuminated weapon sights. A brief discussion of the tests, results and conclusions is presented below:

GENERAL: The tritium illuminated light sources that provide the light in the weapon sights are small glass capsules whose interior is coated with a layer of phosphor. The principle of ultrasonic cleaning is to vibrate the cleaning bath at such very high levels that the cleaning fluid will “bombard” the dirty surfaces and penetrate into every part of the surface to be cleaned. According to every manufacturer of tritium light sources, this type of “bombardment” can loosen some of the phosphor coating in the capsule wall and, as a result, cause a decrease in brightness. The testing performed at MEPROLIGHT was intended to determine how much of a problem this really is, and what extent the brightness of the sights is affected by ultrasonic cleaning.

TESTING: A sample of various types of sights was chosen for the experiment. The brightness of each was measured before the testing, then during the testing and finally at he completion. The testing consisted of performing a large number of cycles of ultrasonic cleaning (each 1-minute in duration) with “rest time” on 1 minute in between the cycles. A total of thirty (30) of these cycles with no detrimental effects noted with respect to brightness. These sights were then “cleaned” in 2 cycles of 10 minutes each and one of 20 minutes each. Once again, after these tests, no detrimental effects were noted. The final test was for one of 30 minutes duration and, here again, there were no detrimental effects.

CONCLUSION: We see no reason to believe that short exposures to ultrasonic cleaning, as described above, will cause a decrease in brightness to our sights. However, since we cannot test all ultrasonic systems and cleaning solutions, we cannot state that none of them will cause damage to the sights-even kept to the minimum amount of time deemed necessary for proper cleaning of the weapons component and that the sights be inspected at the conclusion of such cleaning to assure that no obvious decrease in brightness has occurred.HTH,
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