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Zinc vs Stainless Anchors

tomsmith

Well-known member
Joined
Jul 12, 2009
Messages
207
Hello,

I've had my maxjax installed for a few months now and want to install another set of anchors to give me more flexibility with our two cars. I currently have the columns 135" apart which is fine for the SUV but only works on the car when the arms are fully extended. The second set of anchors will let me move the columns to 120" apart.

I want to avoid using the PD58's that came with the Maxjax because they are a pain, quite frankly. Instead, I want to use the power-sert epoxy anchors from Wejit but I've found the price difference between the Zinc coated and the stainless is very significant.

Zinc coated is $17 and SS is $55 from McMaster-Carr.

I know SS is the better option but that ends up being $185 more for 5.

When I install the new anchors, they would be embedded in concrete and epoxy. They will also be covered by the maxjax steel plate. That should afford some protection from surface water. I live in Canada and once it starts snowing, the garage floor is normally covered in snow and water.

I'm thinking of caulking around the perimeter of the maxjax plate so that water can't seep under it but even if it does, would the zinc-coated anchors be OK?

I'm pretty good at clearing away the snow and water so exposure wouldn't be more than 5-6 days at a time.

Thoughts folks?
 
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Dennis93

Well-known member
Joined
Apr 23, 2013
Messages
319
Location
Va Beach, VA
I assume snow also means salt with it. Your choice, stainless will rust in a hundred to 200 years, but zinc coated can rust in as little as 5-6 years depending on condition. It's just a coating remember that so tHe more scratches and abuse it gets the less likely it will hold up
 
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rlitman

Well-known member
Joined
Oct 18, 2010
Messages
24,631
Location
Long Island
Honestly, stainless is just as likely to corrode as galvanized. Stainless is prone to crevice corrosion, which is an issue in the epoxy potting. If you're so worried about corrosion, just step the fastener up a size.
 
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