would this be suitable to use on pcp rifles (will it not damage the seals etc)?
Hi Brent, its not the silicone thats the problem its the spray prpellent thats a problem, if its a striaght "pump" spray bottle it should be fine, the better o rings are silicone based anyway. I use a pure silicone grease (thanks GRA I'm still using that little tub!) on the breach o ring & any o-rings in the pressure areas.
Just a note as I see it often, keep all "gun" oils away form your seals and for PLEASE do not squirt it into the filler port!!!!
Keep silicon based oils well away from any metal to metal contact points. It has zero lubrication properties in this type of area and will cause damage to such contact surfaces.
The only time I ever use silicon oils is for lubing rubber o-rings or if applied to a cloth for wiping down exterior surfaces. In both of these case it is used very sparingly to avoid it migrating to areas that I don't want it to go.
Just to reinforce this, many years ago I knew of someone who attempted to lubricate a stiff parallax ring on a Tasco scope with some silicon oil, within less than an hour of use after this, the ring had seized solid, just before this particles of alloy were ejected from the mechanism.
Use it at your peril................
silicon oil/cloth are great for rust protection ie. wipe the barrel/cylinder...etc after use, but as Dale stated not suitable for metal to metal contact points.
for lube jobs, depending on the application, use light machine oil/rocket fuel/moly grease....etc
for o-rings, i use silicon/high pressure grease from the pnumatic/dive shops.
I've still got a bottle or 2 of "Beeman MP5" full synthetic 'metallophilic' oil" - Google it!!
Would still luv it if someone could tell me what the friggin' heck it really is and what is equivalent locally, 'cause it works like a charm on anything from seals to metal-to-metal. Makes bluing look real sexy, even works on my knives. At AU$7 imported it's not that expensive either.
If only I had some contacts at Engen who could test it for us...
My personal feeling about silicone spray is to keep it far away from any airgun .
I used tons of it racing m/cycles , really great to spray liberally under the mud guards , stops crud accumulating there . Also spray the plastics on an off road machine , makes it look bling when parked in the garage & on the bakkie .
Oh yes , DONT put it on the seat , you'll get arm pump trying to hold on until enough mud and kak has collected to give you some grip !