Do not use Superlube Grease for PCP Handpump

Wow
I have a brand new tube of this on my bench.... just to lazy to use it...
Boy, I am sure glade I did not use this on hand pump or my shoebox

Thanks for sharing.... you saved me on this one...

Yup. Have to watch what the stuff is actually made of. Lots of synthetics are still flammable. If you're not sure of what anything is ask for the SDS. Merchants in the US are required to supply one if requested.

I think there is a difference between "syntethic" and "silicone" grease.

Ouch ,your lucky it didn't explode.you done good catching the pressure change early.

Dam dude that is terrible. Crazy as well!

I dont use my Hill much but today it pumped ok just felt a bit less smooth...I guess I need the grease that is on PAGS. How best to apply, just on the tube itself? Alot, just a bit? I hate the short jumper, not sure what size threading to get one that is longer. Stock one is so stiff and short, drives me batty. Anyone know a good replacement for it?

Best to use 100% pure silicone grease. Auto supply stores typically carry it, sold as 'dielectric' grease. Works great on my Hill Mk3.

If anybody is using Super Lube there are many different types of Super Lube you must use part number 92003 silicone lubricating Grease. NOT the multi-purpose Synthetic Grease. And Super Lube Dielectric grease is slightly different as well.

Cj_86,

This is slightly off subject, airgun not pump, but still O-Ring lube. Ernest Rowe recommends Super Lube multi-purpose synthetic greese in the FX Master Class series on PCP maintenance and repair. Other options might be better.... Super Lube 93003 O-Ring Silicone Greese, Scuba Diving Silicone o-ring greese, or silicone dielectric greese. Hand pumps generate high temperatures, like any compressor, and that is probably the difference. I used dielectric greese or silcone brake caliper greese when rebuilding my Benjamin hand pump

Ernest uses Pink 3M Wetordry Polishing Paper to ease sharp edges of o-ring grooves. Pink is 4000 grit, not 400 grit. 400 grit polishing paper would be green. An honest error.....he has forgotten more than I’ll ever learn about airguns......Ernest is the man!

I'm just going to state a fact, and the nay sayers can have at it. Dielectric grease will over time melt silicone-based rubber. If you are using it to lubricate o-rings use silicone paste.

Thanks guys I learned something. What about this stuff? https://www.walmart.com/ip/Hercules-40610-2-oz-Anti-Corrosion-Grease/383653050

Fly

FYI, Super Lube 92003 Silicone Lubricating Grease with PTFE is what Brian from EDgun West uses in his videos. I use this also and it works great. My two cents...

Thanks guys I learned something. What about this stuff? https://www.walmart.com/ip/Hercules-40610-2-oz-Anti-Corrosion-Grease/383653050

Fly

Click to expand...

This will work well on o-rings.

I do not use the Super-Lube, even the one some guys say is OK.

I order and use "Dow Corning High Vacuum grease" and it's available from lots of places, even Amazon. It's formulated to do the job better than just dielectric silicone.

* Good lubricating and sealing ability

* Low volatility

* Excellent resistance to water, chemicals, high and low temperatures.

A single 5.3oz tube will last for years and I have a dozen guns and several pumps that I dissemble, modify or service fairly often so my tube has lasted two years and has only used 1/2 so far. Like Brylcreem, a little dab'll do ya.

And it's used on the assembly bench at quite a few airgun manufacturers too.

I am glad you are well. I also learned this the hard way.



Molykote 33 is what I use: https://www.ellsworth.com/products/by-manufacturer/dow/lubricant-products/grease/dow-molykote-33-extreme-low-temperature-bearing-grease-light-off-white-150-g-tube/ Many PCP manufacturers actually recommend Molykote 33.



But from now on, I always do a flame test. None of these oils and greases are 100% silicone; there are always excipients in there.

Dow Corning Molykote 111 compound is the one I recommend for Orings and high pressure. Look it up.

Rebuilt hill pump and lubed everything with Superlube grease. While pumping my air rifle the pump didn't feel right and I saw the psi on the gauge drop 500 psi. After seeing the psi drop I opened the bleed screw and a small fireball blew out catching my fingers.

Click to expand...

Hello-

I will second this recommendation. I rebuilt a Hill pump twice, and found the micron filter destroyed by the Super lube, each time. The last time I tried to rebuild it, it was too late as the micron filter could not be removed. I just had a high dollar club. The problem also involves high humidity, where I live, I believe.

Kind regards,

641

Found this thread just after I spoke to FX USA. They recommend and use Super Lube Silicone Lubricating Grease - 92003. This initially concerned me but after looking up the MSDS I am comfortable with the product:

https://www.rshughes.com/s/pr-asis/y82hIygDKuWrrYW200zAYA.pdf

According to the MSDS this also applies to Super Lube Products Part Numbers – 92003, 92005, 92016, 92030, 92150, 92400 and Brake Grease Part Number 97008. It would appear this is the same formulation with different labeling. Most importantly the Super Lube Synthetic Grease (Part Number 93744) is not listed in the MSDS and must be a different product/formulation.

After much internet searching, I found the (old fashioned??) MSDS which could possibly explain the above pictures and results:

http://www.americangranby.com/MSDS/SL%20Grease.pdf

This MSDS indeed reveals 70-80% hydrocarbon grease. I would assume this is not compatible to rubber, or similar o-rings .

Thanks for all the posts that made me dive deep into this. I hope my findings help others, too. As someone previously stated, read labels and know what is in products. It seems to be more difficult these days.

Cheers!