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Two Aluminum plates (No seize Question)

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Two Aluminum plates (No seize Question)

Old 06-09-2019, 07:23 AM
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Default Two Aluminum plates (No seize Question)

Ok I am going to have two Aluminum plates bolted together (sandwich) one is slotted

When the bolts are tight I want no sliding but when I loosen the bolts I want them to slide for adjustment ...

I'm thinking a thin piece of starboard between them , or is there a grease that would work

This assembly WILL get doused with salt water from time to time ...
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Old 06-09-2019, 09:26 AM
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their gona bond togeather from the salt water
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Old 06-09-2019, 09:28 AM
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Originally Posted by Tommysmicroskiff View Post
Ok I am going to have two Aluminum plates bolted together (sandwich) one is slotted

When the bolts are tight I want no sliding but when I loosen the bolts I want them to slide for adjustment ...

I'm thinking a thin piece of starboard between them , or is there a grease that would work

This assembly WILL get doused with salt water from time to time ...
It might make quite a mess, but a thin coat of Never Seez would do the trick.
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Old 06-09-2019, 03:47 PM
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When steel and aluminum come together on semi trailers they put Mylar Tape inbetween.
It looks like regular cellophane tape but I guess it has better properties.
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Old 06-09-2019, 04:00 PM
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I think I would sandwich a thin piece of delrin or other plastic like acetal delrin. Other than that I think it will not last long. How often will you adjust this?
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Old 06-09-2019, 04:10 PM
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Adjustment will not be required too often . I am actually running this set up and it is doing OK

The standard Bob's jack plate is actually aluminum on aluminum and is not bad

I will be going after some starboard soon ...

https://bobsmachine.com/product/mini...amp-on-motors/







I think I would sandwich a thin piece of delrin or other plastic like acetal delrin. Other than that I think it will not last long. How often will you adjust this?
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Old 06-09-2019, 05:33 PM
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You won't need a thing between them. When you loosen it up they will slide. If it makes you feel better powder coat them.
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Old 06-09-2019, 06:50 PM
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Delrin is self lubricating. I agree with RealMac.
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Old 06-10-2019, 03:54 AM
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Tef-Gel.
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Old 06-10-2019, 04:07 AM
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agree with using delrin,. I bought blocks of it some twenty years ago and have been making parts from it ever since.
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