Im now needing to occasionally replace o-rings in machine tools and
whatnot and need to purchase a selection of them to keep in the truck.

Most applications will be for air, in an oily environment, though a
few will be for hydraulic fluids. Is there some material best suited
for general use?

And will they degrade in a short period of time, in the back of my
service truck in hot weather?

What material should I be using?

I will likely purchase from ebay one of those 400 piece selections
for $10 or so, unless someone has better suggestions.

Grants recent thread on O/A o rings brought this to mind.

Thanks in advance

Gunner



"A prudent man foresees the difficulties ahead and prepares for them;
the simpleton goes blindly on and suffers the consequences."
- Proverbs 22:3