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Rubber Gasket Sealing Thickness and Clearance

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Ramadan Ahmed

Mechanical
May 16, 2024
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Good Evening All,

I'm working on sealing a Push Button bracket for a Video Camera using a Rubber Gasket that require military usage sealing.
I want to ask what is the best material should be used for sealing the camera from liquids such as water, oil, and chemicals?
also what should the thickness of the gasket be ? giving the dimensions as in the photo, L = 94.5mm, W = 40.5mm, Hole Clearance for M2.5 screw = 4.05mm.

IS the whole crearence enough? or is it larger than needed ? i'll be using M2.5 screw, im not sure if there\s a stanrd way to for the clereance of the screws in a Gasket.

Can you please help me with this matter.
Thank you.

Screenshot_2024-05-30_102742_zf3u54.png
 
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