Grainger shows LPS ThermaPlex Multi-Purpose Bearing Grease (a lithium complex) as a substitute for Mobil Polyrex EM (a shear-stable polyurea). It's been common knowledge not to mix lithium and polyurea grease. I have found a chart that shows lithium complex grease and shear-stable grease as compatible. What's you take?"
Lithium Complex Grease vs. Shear-Stable Polyurea Grease
MechTech2013
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Grainger shows LPS ThermaPlex Multi-Purpose Bearing Grease (a lithium complex) as a substitute for Mobil Polyrex EM (a shear-stable polyurea). It's been common knowledge not to mix lithium and polyurea grease. I have found a chart that shows lithium complex grease and shear-stable grease as compatible. What's you take?"
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I would avoid mixing them if possible. Compatibility has a lot to do with which thickeners are used in the greases. While some lithium complex and polyurea greases are indeed compatible, it's difficult to know which ones are for sure without a compatibility test. I'm not sure I would trust data from Grainger. You also rarely know if old grease you might be mixing new grease with is actually contaminated with grease that is not mutually compatible.
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I like Grainger. I've bought a lot of stuff there over the years. But they are not my go to source for grease compatibility.
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Sorry for the confusion. Grainger lists the grease as a substitute, but I found the compatibility chart elsewhere.
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Simple rule is to just not mix lubes.
I guess your a Pro, so why were in the public forum, I have not a clue. Will point you to a good thread in the Pro Section. Read up on the Grease Bible, I attached their.
http://hvac-talk.com/vbb/showthread.php?1040911
I guess your a Pro, so why were in the public forum, I have not a clue. Will point you to a good thread in the Pro Section. Read up on the Grease Bible, I attached their.
http://hvac-talk.com/vbb/showthread.php?1040911
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The Grease Bible sounds interesting, but I guess I can't see it with out a professional membership. How much does the membership cost?
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Membership is FREE...just need to meet some requirements.
http://hvac-talk.com/vbb/forumdisplay.php?38-Pro-Membership-Information
Nice thing is that you already have the minimum required amount of posts, so you are already on your way:grin2:
http://hvac-talk.com/vbb/forumdisplay.php?38-Pro-Membership-Information
Nice thing is that you already have the minimum required amount of posts, so you are already on your way:grin2:
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Thanks for the info! I'll sign up when I have some time.
Put your email address in your profile info.
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Thanks for the tip. I've added my email address to my profile.
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The grease bible is a good read, thanks!
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