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Old 01-06-2010, 09:07   #5
Snaquebite
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Join Date: May 2006
Location: Raeford, NC
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As Cric said it can be done. Start with a small bit and work up to the size hole you need. I will add that every manufacturer I know will void any warranty if you do this as you have altered the ballistic integrity of the helmet. Additionally ensure you use ballistic rated screws or nuts.

On the MSA ACH the holes are put in the helmets during the curing process and he helmet is still soft ensuring the ballistic properties of the material are not altered and the helmet cures completely around the holes.

Regarding the water, you need to seal the edges of the new hole as water can be absorbed. This can be done with silicone or epoxy.
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Last edited by Snaquebite; 01-06-2010 at 09:13.
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