[Public-List] Drilling Holes...

[John Birch]

I agree, for any through hull below the water it is prudent to coat the cut 
edge with a thin epoxy resin to coat the fibers, let it cure and bed the new 
fitting with your favorite bedding compound. I use Sikkens adhesive 
polyurethane calks, others prefer 3M.

All should be bedded a week before launching.

A belt and suspenders approach for a belt and suspenders boat.

Best

John


----- Original Message ----- 
From: "Rod Symmes" <weatherhelm at hotmail.com>
To: "A30 List" <public-list at lists.alberg30.org>
Sent: Wednesday, May 05, 2010 9:16 AM
Subject: Re: [Public-List] Drilling Holes...


>
>
>
> Greg;
> Sorry for the delay - life has been so crazy I haven't even found time to 
> get the boat ready for launch [grrrrr]
> Other opinions may vary but my fear is that when you cut through even 
> solid fibreglass you expose the cut ends of fibres to water and if those 
> fibres were not completely wetted with resin, the water will migrate along 
> the fibre, pick up chemicals, and create an acidic soup.
> Yes, I would sleep better after just "painting" the cut edge with epoxy to 
> seal the fibres.
>
> Cheers,   Rod
>
> ~~~~_/) ~~~~~~~~~~
> ~~~~~~~_/)  _/) ~~~~~~~
> ~~_/) ~~~~~~~~~~~~
>
>
>
>
>> From: gregr at nethere.com
>> To: public-list at lists.alberg30.org
>> Date: Sun, 2 May 2010 11:38:41 -0700
>> Subject: Re: [Public-List] Drilling Holes...
>>
>> Rod,
>> The goop and good tape or adhesive heatshrink is my normal approach...
>>
>> I know one has to take extra measures when drilling through cored
>> areas. I didn't realize solid fiberglass would have an issue. Will
>> "painting" it with epoxy do the trick or does it require the same
>> treatment as a hole through a cored section. I was planning to use a
>> liberal amount of 5200. (it's metal so I can always heat it if I
>> really want to pull it.)
>>
>> Thanks,
>>
>> Greg. (KF6HAU)
>
>
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