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Just a quick question. The WSM calls for using Copper based Anti-seize. I have gravitated towards Permatex as a general use product. Mainly because it is available. I am generally OK with using this product, but I have to install my crankcase Drain plugs. I want to make sure they can come off again.
What are folks using for anti-seize.
use the permatex silver stuff for the steel to aluminum applications. I believe it is nickel based. There are many threads about antiseize, but they all deal with the high end Porsche spec optimally.
A decade ago, or more, this was discussed and I called Permatex and spoke with a rep. He said the standard Permatex silver was good for steel bolts into aluminum threads and suggested using it liberally.
I thought the silver permitted stuff was Nickel based as well, then looked it up. It has a max temp that is about 1000 degree less then the nickel stuff. it turns out it is a blend. I am going to use the copper stuff on the drain plugs. It is kind of made for soft metals....
Good to know about the AL vs Steel, I have been using it for that application...
here is the product description of the silver permatex stuff.
A highly refined blend of aluminum, copper and graphite lubricants. Use during assembly to prevent galling, corrosion and seizing due to weathering or chemicals. Anti-Seize assures easier disassembly. Temperature range: -60°F to 1600°F (-51°C to 871°C). Salt, corrosion and moisture resistant – ideal for marine use. Non-aerosol version meets Mil Spec #907E. Aerosol - Level 3 *NFPA Fire Code 30B - See more at: http://www.permatex.com/products-2/p....0yuWZsgR.dpuf
For drain plugs, I like TFE thread sealing paste rather than antisieze compound. I'm generally not worried about galvanic corrosion there, and using the TFE paste means I don't have to strong-arm the plug to get a seal, or remove them later. For straight-threaded plugs with gaskets or washers, a little of the same paste on te sealing faces helps with sealing and also helps prevent galling.
The gas turbine guys have settled on a nuclear-grade non-metallic anti-sieze that looks like it might be as close to a universal product as I've seen so far. It's a tad pricey, though. I have the same cans of anti-seize that I bought 20 years ago, and use it on everything. Just not enough 'everythings' any more I guess. Nuke stuff if/when I run out of what I have already.
Coming from the marine side, I learned the copper anti seize is one of the worst for galvanic corrosion. I have switched to marine anti seize which has no heavy metals. It has never let me down so far. Spendy stuff though.
.... I am going to use the copper stuff on the drain plugs. It is kind of made for soft metals....
I would avoid the copper on any AL to steel applications. I think steel to steel only for the copper. Otherwise it may cause a reaction and start corrosion. Not sure what 96guageman's thoughts are on that.
I would avoid the copper on any AL to steel applications. I think steel to steel only for the copper. Otherwise it may cause a reaction and start corrosion. Not sure what 96guageman's thoughts are on that.
I agree. steel to steel is ok with copper. I just use marine grade wherever anti seize is called for. Higher temp and no corrosion issues ( have removed some bolts from 7 year old replacement.....)
I use the silver on most everything. I don't use much of the copper, except maybe for axles. You don't really need it for fasteners that get oiled anyway, or for interior, where no corrosion is expected. No issues so far. Get the fist-sized bottle and it will last you a long long time.
11-25-2014, 10:56 AM
Copper vs. Permatex Anti-Seize
