Recommendations for hull epoxy?

Discussions about Cape Dory, Intrepid and Robinhood sailboats and how we use them. Got questions? Have answers? Provide them here.

Moderator: Jim Walsh

Post Reply
Chris Reinke - CD330

Recommendations for hull epoxy?

Post by Chris Reinke - CD330 »

Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?



chris.reinke@sac.com
charlie palumbo

Re: Recommendations for hull epoxy?

Post by charlie palumbo »

Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.



jcp1347j@aol.com
Dana

Re: Recommendations for hull epoxy?

Post by Dana »

Chris,

Just to be sure...the damage was down to the glass but not into the glass laminate...right? I.e. you are only talking filler here...
As Charlie indicated with the West 105, I have used it for hull repair with fiberglass and as a filler. The way to go...

P.S. I hit an rock ledge just outside my slip area...

Dana

charlie palumbo wrote:
Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.


darenius@aol.com
Dana

Re: Recommendations for hull epoxy?

Post by Dana »

Chris,

Just to be sure...the damage was down to the glass but not into the glass laminate...right? I.e. you are only talking filler here...
As Charlie indicated with the West 105, I have used it for hull repair with fiberglass and as a filler. The way to go...

P.S. I hit an rock ledge just outside my slip area...

Dana

charlie palumbo wrote:
Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.


darenius@aol.com
Chris

Re: Recommendations for hull epoxy?

Post by Chris »

The damage is at various depths ranging from 0” to
”. I was only able to inspect the sections not currently sitting on timbers. The edges of the damaged area show everything from minor gel scratches to complete
” penetration to keel lead. The glass is not structural at that point so I was planning on using epoxy filler and not glassing the area. Would you disagree?

Dana wrote: Just to be sure...the damage was down to the glass but not into the glass laminate...right? I.e. you are only talking filler here...
As Charlie indicated with the West 105, I have used it for hull repair with fiberglass and as a filler. The way to go...

P.S. I hit an rock ledge just outside my slip area...

Dana

charlie palumbo wrote:
Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.


chris.reinke@sac.com
Dana

Agree

Post by Dana »

yes....

_________________

Chris wrote: The damage is at various depths ranging from 0” to
”. I was only able to inspect the sections not currently sitting on timbers. The edges of the damaged area show everything from minor gel scratches to complete
” penetration to keel lead. The glass is not structural at that point so I was planning on using epoxy filler and not glassing the area. Would you disagree?
Chris wrote:
Dana wrote: Just to be sure...the damage was down to the glass but not into the glass laminate...right? I.e. you are only talking filler here...
As Charlie indicated with the West 105, I have used it for hull repair with fiberglass and as a filler. The way to go...

P.S. I hit an rock ledge just outside my slip area...

Dana
Dana wrote:
charlie palumbo wrote: Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.


darenius@aol.com
sloopjohnl

Re: Recommendations for hull epoxy?

Post by sloopjohnl »

dana has the formula. did my whole hull below the waterline that way.
if the gouge is on the bottom of the keel i wouldn't sweat a perfect finish with the sanding. only the ants and the crabs will be looking.


charlie palumbo wrote:
Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
I would recommend west system..105/205/406 filler. wet out the gap with 105 only....mix a moderate amount of 105/205/406. 406 is like a white powder....add umtil you get a peanut butter thickness and trowel mix into the gap. fill slightly higher than gap because you are going to have to sand smooth. Before sanding wipe vigorously with paper towels or scothbrite pad....afterwards sand with 80 grityou may want to recoat finished area a couple of times with epoxy for better waterproofing and abrasion resistance. Of course you will have to resand.
good luck..............Charlie cd36 N.Y.
charlie palumbo

Re: Recommendations for hull epoxy?

Post by charlie palumbo »

Chris Reinke - CD330 wrote: Last summer someone must have moved a large rock, or the bay floor, without letting me know of the changes. My CD330 has a gouge that runs the foot of my keel surface. The gouge is approximately 1/4 to 1/2 inches deep and about 1 inch wide. I have some exposed woven glass. Any epoxy product recommendations that would be suitable to fill it with?
Chris,
In my original e mail ....a slight error of omission....when yoy wet out the gap with epoxy, that is before you apply 105/205/406 mix,wet out with 105/205 mixture...wait till begins gelling, than add your 105/205/406 thickened epoxy.
good luck
Charlie cd36, N.y.



jcp1347j@aol.com
Douglas G Young

Re: Recommendations for hull epoxy?

Post by Douglas G Young »

I put a barrier coat on my boat this last winter. As far as Im concerned there is only one product to use. Read about it here
www.epoxyproducts.com/barrier4u.html



dgyoung49@msn.com
matt cawthorne

Re: Recommendations for hull epoxy?

Post by matt cawthorne »

Chris,
I hit something last fall in the channel, just outside my marina. I took a different approach than the one listed below. My notch seemed just as deep as the one you have, but there was no sign of lead at the bottom. Mine was still only showing fiberglass. I sanded the area well, rounding down the edges of the notch. I put a little filler in the bottom of the notch, as described below, but then started adding layers of fiberglass/west epoxy. I ultimately built it up to being a little thicker than the original boat was. Each layer is wider than the previous one, making a very fair patch. I put some vairing compound over the whole job when still wet. When cured I went back and sanded everything to a smooth contour. Most of the fairing compound was sanded away, leaving just little spots here and there left. I then barrier coated with west epoxy, and after the last coat of epoxy was just barely tacky I hot coated the paint right on. It seems to have stuck well, without sanding.

Matt



mcawthor@bellatlantic.net
Post Reply