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Posted: 5/12/2003 10:16:37 AM EDT
Hi all,

I've been having this nagging suspicion that applying CLP to mags eats away the smooth moly coating. Is this based in fact, or am I on crack?

I notice that if I add a couple drops to a mag, then rub it in with my fingers, the clp turns the color of the moly, but I'm not sure why, since I mostly buy old grungy mags.

FWIW, old colt 20s seem to become more uniformly smooth when CLPed.

Thanks
Link Posted: 5/12/2003 1:15:55 PM EDT
I've always oiled my ar mags, but when introduced to clp in the military they taught us to lightly coat them with clp during routine maintenance. _______________________________________________ Even my wife has an AR [X]
Link Posted: 5/12/2003 2:23:15 PM EDT
[Last Edit: 5/12/2003 2:26:36 PM EDT by noah]
The CLP is taking the loose MoS2 lube particles back into suspension. The MoS2 dry film lube used on the USGI mags has historically been a solventborne material with a very high pigment to binder ratio. Not a lot of binder, and that's why the MoS2 pigment "chalks" off with time. Being solventborne, if you introduce a solvent (CLP, methyl ethyl ketone, etc.) it WILL remove the MoS2, little by little. Of course, the MoS2 does a good job of coming off by itself with time. A couple of years ago Okay Industries switched from spray-coating the mag bodies with solventborne coating to dip-drain coating them with a VOC-compliant dip version of the coating made by another manufacturer. I read the article in a coatings industry magazine about how Okay saved a bundle because the dip-drain application method has a 100% transfer efficiency (no waste), and the former spray process had about 60% to 70% waste in overspray caught in the booth filters. Noah
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