N/A Lube or no lube on o-rings??

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extradrygin2001

extradrygin2001

Member
Apr 13, 2020
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WI, United States
Hello all, I am pulling my .25 Marauder apart as it appears to have a broken popit valve. Anyway I am replacing all the o-rings while it is apart and was considering putting a thin coat of silicone grease on the o-rings. I also see a chap on this site selling regulator butter for regulator rebuilds.

So my question is do you lube your rings? And if so what do you use?
 
Ideally, silicone grease for static O-rings to aid with assembly and improve O-ring longevity. Silicone oil for dynamic O-rings...those that slide like a bolt or breech O-ring, fill probe O-rings, etc..

Silicone grease is sold inexpensively as automotive dielectric grease.

Silicone oil is sold inexpensively as "silicone shock oil" for RC cars.
 
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extradrygin2001 said:
Hello all, I am pulling my .25 Marauder apart as it appears to have a broken popit valve. Anyway I am replacing all the o-rings while it is apart and was considering putting a thin coat of silicone grease on the o-rings. I also see a chap on this site selling regulator butter for regulator rebuilds.

So my question is do you lube your rings? And if so what do you use?
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PCP silicone grease. Always, for me. I deburred the tube better on my g1 mrod 25 and it quit messing up so many orings on reassembly..... Even if I guide them past the holes in the tube it used to knick them. Not anymore.
 
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extradrygin2001 said:
Hello all, I am pulling my .25 Marauder apart as it appears to have a broken popit valve. Anyway I am replacing all the o-rings while it is apart and was considering putting a thin coat of silicone grease on the o-rings. I also see a chap on this site selling regulator butter for regulator rebuilds.

So my question is do you lube your rings? And if so what do you use?
Click to expand...
Definitely silicone grease, it can prevent damage during assembly
 
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