Re: Stus-List Deck Coring Around Chainplates > Chainplates

[Danny Haughey via CnC-List]

oh,  and be careful with the volume of epoxy you mix up in one pot.  
larger amounts kick of pretty fast and REALLY hot!!  Ask me how I know 
that!  That same boat had wet deck round a 4" vent somebody installed by 
simply jig sawing the opening and caulking the vent down, the moisture 
got pretty deep too.  That was big void and I mixed what thought was an 
appropriate amount.  that stuff kicked off and almost burned my hands it 
was so hot I had to drop it and it melted the plastic container i was 
using for a pot.  you could mix smaller amounts in separate pots to 
avoid this issue but, it made the deck really hot too.  I think the 
amount I mixxed would have been about a 3rd or maybe a 1/2 of one of 
those plastic quart containers you get at the deli.  (we do dumb things 
sometimes... this is how we learn!!  LOL)


Danny


On 1/30/2017 8:31 AM, Nauset Beach via CnC-List wrote:


Randy,

When I rebed my chainplates 2 years ago – had to dig out the wet balsa 
and replace with epoxy using the chainplates wrapped in wax paper as 
plugs / forms – found the chainplates themselves were quite corroded 
on the back side which was against the bulkhead.  Several of the 
stainless bolts were severely rusted and the chainplates had tiny 
cracks fully through the metal at the bolt holes.  Had new chainplates 
fabricated.


As you are in fresh water it may not be as much of an issue, but if 
your boat lived much of its life in saltwater previously, there may be 
damage to the metal.  Make sure you closely examine the chainplates 
for any corrosion!


Brian

*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of 
*RANDY via CnC-List

*Sent:* Sunday, January 29, 2017 10:05 PM
*To:* cnc-list 
*Cc:* RANDY 
*Subject:* Re: Stus-List Deck Coring Around Chainplates

Thanks Dennis (and Gary and Sam).  Let me see where I stand on Tuesday 
- I may be ready to epoxy if I can do the bent nail and acetone thing 
tomorrow.  Let's call or text on Tuesday.


Gary - my chainplate covers are aluminum and still in good shape, just 
needed a really good cleaning (probably 44 years' worth of various 
sealant jobs built up on their undersides).


Sam - yes my chainplates bolt to fiberglass "knees" tabbed to the 
hull.  And the chainplates and knees are in good shape - no sign of 
weakening from exposure to moisture.  I just want to make sure I do a 
proper job of sealing it all up so I don't get more coring in the deck 
going forward.  Unfortunately it looks like my boat's previous owners 
didn't do a proper job (e.g. per Don Casey's prescriptions) of keeping 
this area sealed, and a little bit of coring occurred.  The starboard 
side was all gooped up with clear silicone, and the port side had an 
ineffective bead of white caulk around the edge of the cover, and both 
sides had hard-as-rock probably original white-colored sealant under 
those other sealants.


I'll be using polysulfide (Life Caulk) per Don Casey for the 
re-bedding sealant.


Cheers,

Randy



*From: *"Dennis C. via CnC-List" >

*To: *"cnc-list" >
*Cc: *"Dennis" >
*Sent: *Sunday, January 29, 2017 4:30:09 PM
*Subject: *Re: Stus-List Deck Coring Around Chainplates

Randy,

You're on the right track.  Wish I'd known you were doing that, I 
would have stopped by and taken a peek.  I'm back up in the mountains now.


If it was me, I'd remove the wet core as far back as I could with bent 
nail, etc., dry it with acetone and/or heat gun, tape the area, inject 
some neat epoxy until it was level with the deck, use bent nail to 
agitate it then quickly suck out the epoxy. That will coat the exposed 
surfaces so the thickened epoxy will bond better.  Then I'd inject 
thickened epoxy, let it cure and re-install the chalnplates. Don't 
forget to chamfer the hole so the bedding plate doesn't sit down on a 
square edged cut.


I'm headed back down to the airport Tuesday afternoon. Got to pick up 
my ski buddies Wednesday morning. I might be able to swing by the dry 
storage on the way.


Dennis C.



___

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make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!


___

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

Re: Stus-List Deck Coring Around Chainplates > Chainplates

[Danny Haughey via CnC-List]

Hi randy,

It seems you are definitely going in the right direction.  I had a 
problem like this on one of my old boats but, under the bow rail feet.  
I traced out the size of the plate and oped things up a bit with a hole 
saw to give deeper access.  This aloowed me to get a more substantial 
tool in there that the bent nail or allen key. That metod is fine if 
your water intrusion is kind enough to be in a perfect circle that 
exactly the same depth as your nail or allen key.  Otherwise, it gets 
caught, bends, twists, rips the drill out of your hands if your not 
ready for it.  It just isn't really that great in practice, at least it 
wasn't for me.  I ended up, doing the hole saw and got an old screw 
driver, I didn't mind bending, (you could also get some cheapies from 
harbor freight or the like) and started digging.  This also give you a 
better feel for the density of the wood your digging at.  You can 
actually feel the difference between soggy, moist and dry on the screw 
driver.  I then let it sit open for s few weeks.  If you have this 
luxury it would be best.  if not, heat guns and the like work pretty 
good but, I'd say the more time you can allow will be a benefit.  After 
drying, I think you have all the techique you need already offered to 
fill it all back in.


Now, Bedding, I would urge you to read this article by MaineSail from 
compass marine.


http://www.pbase.com/mainecruising/rebedding_hardware

This guy is is a bit of a scientist.  he does real world experiments and 
bases his opinions on his findings.  Whenever I have to tackle a new 
project, I go to his site to see if he's done a write up first.  Lots of 
photos and insights and pros and cons to all his recommendations.  I 
have never been disappointed following his techniques.


Danny

On 1/30/2017 8:31 AM, Nauset Beach via CnC-List wrote:


Randy,

When I rebed my chainplates 2 years ago – had to dig out the wet balsa 
and replace with epoxy using the chainplates wrapped in wax paper as 
plugs / forms – found the chainplates themselves were quite corroded 
on the back side which was against the bulkhead.  Several of the 
stainless bolts were severely rusted and the chainplates had tiny 
cracks fully through the metal at the bolt holes.  Had new chainplates 
fabricated.


As you are in fresh water it may not be as much of an issue, but if 
your boat lived much of its life in saltwater previously, there may be 
damage to the metal.  Make sure you closely examine the chainplates 
for any corrosion!


Brian

*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of 
*RANDY via CnC-List

*Sent:* Sunday, January 29, 2017 10:05 PM
*To:* cnc-list 
*Cc:* RANDY 
*Subject:* Re: Stus-List Deck Coring Around Chainplates

Thanks Dennis (and Gary and Sam).  Let me see where I stand on Tuesday 
- I may be ready to epoxy if I can do the bent nail and acetone thing 
tomorrow.  Let's call or text on Tuesday.


Gary - my chainplate covers are aluminum and still in good shape, just 
needed a really good cleaning (probably 44 years' worth of various 
sealant jobs built up on their undersides).


Sam - yes my chainplates bolt to fiberglass "knees" tabbed to the 
hull.  And the chainplates and knees are in good shape - no sign of 
weakening from exposure to moisture.  I just want to make sure I do a 
proper job of sealing it all up so I don't get more coring in the deck 
going forward.  Unfortunately it looks like my boat's previous owners 
didn't do a proper job (e.g. per Don Casey's prescriptions) of keeping 
this area sealed, and a little bit of coring occurred.  The starboard 
side was all gooped up with clear silicone, and the port side had an 
ineffective bead of white caulk around the edge of the cover, and both 
sides had hard-as-rock probably original white-colored sealant under 
those other sealants.


I'll be using polysulfide (Life Caulk) per Don Casey for the 
re-bedding sealant.


Cheers,

Randy



*From: *"Dennis C. via CnC-List" >

*To: *"cnc-list" >
*Cc: *"Dennis" >
*Sent: *Sunday, January 29, 2017 4:30:09 PM
*Subject: *Re: Stus-List Deck Coring Around Chainplates

Randy,

You're on the right track.  Wish I'd known you were doing that, I 
would have stopped by and taken a peek.  I'm back up in the mountains now.


If it was me, I'd remove the wet core as far back as I could with bent 
nail, etc., dry it with acetone and/or heat gun, tape the area, inject 
some neat epoxy until it was level with the deck, use bent nail to 
agitate it then quickly suck out the epoxy. That will coat the exposed 
surfaces so the thickened epoxy will bond better.  Then I'd inject 
thickened epoxy, let it cure and re-install the chalnplates. Don't 
forget to chamfer the 

Re: Stus-List Deck Coring Around Chainplates > Chainplates

[Nauset Beach via CnC-List]

Randy,

 

When I rebed my chainplates 2 years ago – had to dig out the wet balsa and 
replace with epoxy using the chainplates wrapped in wax paper as plugs / forms 
– found the chainplates themselves were quite corroded on the back side which 
was against the bulkhead.  Several of the stainless bolts were severely rusted 
and the chainplates had tiny cracks fully through the metal at the bolt holes.  
Had new chainplates fabricated.  

 

As you are in fresh water it may not be as much of an issue, but if your boat 
lived much of its life in saltwater previously, there may be damage to the 
metal.  Make sure you closely examine the chainplates for any corrosion!  

 

Brian

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of RANDY via 
CnC-List
Sent: Sunday, January 29, 2017 10:05 PM
To: cnc-list 
Cc: RANDY 
Subject: Re: Stus-List Deck Coring Around Chainplates

 

Thanks Dennis (and Gary and Sam).  Let me see where I stand on Tuesday - I may 
be ready to epoxy if I can do the bent nail and acetone thing tomorrow.  Let's 
call or text on Tuesday.

 

Gary - my chainplate covers are aluminum and still in good shape, just needed a 
really good cleaning (probably 44 years' worth of various sealant jobs built up 
on their undersides).

 

Sam - yes my chainplates bolt to fiberglass "knees" tabbed to the hull.  And 
the chainplates and knees are in good shape - no sign of weakening from 
exposure to moisture.  I just want to make sure I do a proper job of sealing it 
all up so I don't get more coring in the deck going forward.  Unfortunately it 
looks like my boat's previous owners didn't do a proper job (e.g. per Don 
Casey's prescriptions) of keeping this area sealed, and a little bit of coring 
occurred.  The starboard side was all gooped up with clear silicone, and the 
port side had an ineffective bead of white caulk around the edge of the cover, 
and both sides had hard-as-rock probably original white-colored sealant under 
those other sealants.

 

I'll be using polysulfide (Life Caulk) per Don Casey for the re-bedding sealant.

 

Cheers,

Randy

 

  _  

From: "Dennis C. via CnC-List"  >
To: "cnc-list"  >
Cc: "Dennis"  >
Sent: Sunday, January 29, 2017 4:30:09 PM
Subject: Re: Stus-List Deck Coring Around Chainplates

 

Randy,

 

You're on the right track.  Wish I'd known you were doing that, I would have 
stopped by and taken a peek.  I'm back up in the mountains now.

 

If it was me, I'd remove the wet core as far back as I could with bent nail, 
etc., dry it with acetone and/or heat gun, tape the area, inject some neat 
epoxy until it was level with the deck, use bent nail to agitate it then 
quickly suck out the epoxy.  That will coat the exposed surfaces so the 
thickened epoxy will bond better.  Then I'd inject thickened epoxy, let it cure 
and re-install the chalnplates.  Don't forget to chamfer the hole so the 
bedding plate doesn't sit down on a square edged cut.

 

I'm headed back down to the airport Tuesday afternoon.  Got to pick up my ski 
buddies Wednesday morning. I might be able to swing by the dry storage on the 
way.

 

Dennis C.

 

___

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!