Piston lube questions....Krytox?

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my87csx481

my87csx481

Member
Jun 6, 2019
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Fort Fairfield, ME, United States
I am going to install a Vortek PG3 kit in an HW97k, along with their VacSEAL26.

I have a tube of Krytox that I purchased for a lube tune on a different air rifle. (For those that don't know, Krytox is designed to NOT be easily removed with traditional chemicals/cleaning solvents. It requires some special chemical to remove it....which is expensive....and most likely very difficult for me to obtain.)

My plan is (or perhaps was) to use the Krytox to lube the piston seal and the spring guides, and other points of friction.

Soooo....why would I ever need to remove the Krytox? Other than if, at some point, I decide to use a different lube. I plan to never sell the rifle. So no need for me to be concerned about the next owner's preferences.

Why would I choose to use Moly (or something else) over the Krytox, seeing as I have already spent the money for, and have, the Krytox?

Just looking for some help....to see what I am not seeing in this.

Thanks.
 
Me too Mossonarock.



ARH's moly was mentioned in a PM. Some tuners have their own custom recipe/blend. I know I stumbled across one or more recipes about a year ago, before I got the Krytox. I think the recipes were on GTA.



Hoping to find something commercially available, or some other options. At some point, people will completely retire from their businesses. If the business isn't continued by someone, availability of their products will likely disappear.
 
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The PG3 kit comes prelubricated with Vortek's orange grease as well as a small container of the same material. The Vortek grease meets the basic requirements, it has enough tack to stay in place, and will not separate and leave an oily film everywhere the way some of the factory lubes can. I use it straight on the spring and plastic guides, and mixed about 50:50 with the Vortek moly grease where there is metal to metal contact. The Vortek lubes are very stable, but not entirely inert. If you allow any to get in front of the piston seal, you will have to put up with some smoking for a while. The trick is to clean the compression tube thoroughly, then apply a very thin film of grease on the OD of piston and seal. If you do decide to coat the inside of the compression tube with moly, be sure to very thoroughly remove all excess before installing the piston. For best consistancy, only a small amount of grease should be applied to the spring and guides, just enough to provide lubricity. The Vortek greases are not intended to be used as dampening compounds, that is the function of the triple guide system.

The small container that comes with the kit is enough to take care of the original installation plus a relube down the road. If you want a lifetime supply, you can purchase a larger container separately.
 
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Gas ram or Spring. 

I use Honda Moly 60 lube, or something equivalent. I put it around the sides of the seal, and a little on the back skirt of the piston. If it's a spring I also put a lite coating on the spring. Use it very sparingly you don't need alot. It will work / flow around all the parts.Most of the "hardware store/auto parts store moly greases they don't really contain that much moly. You need 60% or better. You should be able to get the Honda Moly at a Honda motorcycle dealer. My son works for Honda and has given me a lifetime supply. Have been using it for years. It works why change. 
 
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1597509885_11968030275f3810fd7ffbe9.74093372.jpg
Trident Silicone Grease. This is what I use on my piston and springs. It was recommended here on AGN.
 
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