Petroleum Jelly (Vaseline). As tnom has stated it is eatable and worked
for me and a host of mechanics for over forty years. Even used it on poly
packing. Easy to see if contaminated and what the contaminate is. A metal
shaving or grit in a dark grease will lead to rework. The most expensive
work because it it at no profit and may ruin your reputation. Your
reputation is hardest part of rework to repair.
Back in the day when I was learning how to rebuild scuba regulators and valves I
was warned NEVER to use petroleum jelly or oil on a rubber o-ring as the
petroleum products would eventually attack and destroy rubber. We used silicon
A little goes a long ways. We would apply enough to make the ring appear
wet.... but not enough to leave any excess glop on the ring.
Food grade silicon grease was available from restaurant supply houses. Dive
shops sometimes had it as well. And silicon spray is NOT the same as the
grease; it won't last nearly as long.
On Mon, 20 Oct 2008 20:26:55 -0400, "Mortimer Schnerd, RN"
EPDM rubber is not compatible with Vaseline. Is this what scuba gear
uses? It may be because respirators use it. This is the same type of
rubber that automotive door seals are made of.
EPDM is not used as O-ring material in pumps.
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