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Old 09-21-2023, 09:18 PM   #1
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Sealing fuel tank hatch

Hi all,

I recently removed the inspection hatch on both my diesel and water tanks to clean a replace the fittings.
Time has come to re install the hatches.
They are 5mm steel and are mounted onto a steel flange with about 30 nuts and bolts holding them.
Iím looking for a product to place between the hatch and flange to seal them.
Any recommendations?
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Old 09-21-2023, 09:28 PM   #2
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I think this is just what you need.
https://www.permatex.com/products/ga...-sealant-2-oz/
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Old 09-21-2023, 11:31 PM   #3
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Was there any gasket in between?
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Old 09-21-2023, 11:34 PM   #4
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No there was some type of sealant.
The hatch is quite big, around 600mm x 600mm
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Old 09-22-2023, 08:52 AM   #5
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I have rather large inspection hatches made from fiberglass pipe fittings designed to sustain hot, caustic fracking liquids used in oilfields. I used Nitrile Buna-N gaskets. I purchased from McMaster Carr, but here is some additional tech information I scraped from a Google search:

https://www.atlanticgasket.com/gaske...e-gaskets.html

Peter
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