Dumb question: Is anti-seize ok for aluminum components? I have an aluminum tranny mount that is apparently fused to the aluminum-alloy tranny. Don’t want that to happen again.

Sure! I’d use an anti-seize compound that contains aluminum. Tester

Yes it is. After all, many use it on spark plugs in aluminum cylinder heads.

Antiseize is perfectly safe for aluminum, and preventing the situation you described from recurring is an excellent application of it. I would recommend against using it anywhere with critical torque values, as its effect on torque readings could cause you to strip the threads in aluminum.

Anti-seize was developed with aluminum in mind. When you have steel and aluminum coming together, they can interact with a galvanic action and actually microweld to each other. This causes serious problems, especially with steel bolts and threaded spark plugs in aluminum parts like cylinder heads. T…

Zinc Oxide anti-seize is made for aluminum. This is commonly sold in little tubes for spark plugs.

@keith since you mentioned it, as I am reading up on this topic - I have some Gardner-Bender Ox-Gard. It claims to be for aluminum (among other things). I was considering using that instead… but like I said, still reading… also, I don’t know if more than one metal is in this part.

See if you can find the MSDS for Ox-Gard on line. It might tell you a lot of what’s in it.

On the subject of aluminum and copper compatibility, I’ve read that a pre-1982 (mostly copper) penny dropped in the bilge of an aluminum boat will eat a 1/2" hole right through the aluminum, so aluminum boat owners are careful to keep copper away from their hulls. But Permatex says their copper-con…

Interesting. I think I’ll leave a small chunk of copper wire on a piece of aluminum flashing out in the elements and see what happens.

Dumb question: Anti seize ok for aluminum

Maintenance/Repairs

missileman September 3, 2014, 3:29pm 6

Yes…as many others have already stated.

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Dumb question: Anti seize ok for aluminum

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