"This video shows how rough fillets come out with silica and chopped glass finer, but apparently you can smooth it over with a glass fabric quite well: https://youtu.be/9jHUI0CiYbs"
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Kris's Discussions
Sliding hatches repair?
2 Replies
My Pahi 42 comes with three sliding hatches for the deck pod and the two hulls. I like the design in general as it is easy to open by foot and strong enough to step on as well.But after what I assume…Continue
Started this discussion. Last reply by Kris on Wednesday.
Epoxy filler for fillets and bonds, only micro glass beads or also chopped glass fiber?
12 Replies
So it looks like there hasn't really been any discussion on what type of filler for epoxy fillets is best.Looking at…Continue
Started this discussion. Last reply by Kris on Friday.
Spirit of Gaia sightings
2 Replies
The famous Spirit of Gaia just arrived in Ponta Delgada (Azores) today and I had a nice chat with them about renovating my Pahi 42.Anyways, here is a picture:…Continue
Started this discussion. Last reply by Kris Sep 8.
Protecting the beam from lashing cutting into it?
5 Replies
I recently purchased a used Pahi 42 and the main lashings need to be re-done.I noticed that the ropes have slightly cut into the beams surface in a few places and was wondering what would be the best…Continue
Started this discussion. Last reply by Kris Sep 8.
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"I assume it is the standard in the Pahi 42 design:
The worn through part looks like this:
I think I'll remove the metal part and then try to fiberglass over the entire thing, unless someone has a better idea?"
"I ended up ordering some bulk Cabosil M5 and also a small quantity of West Systems 403 and 409 to test. Should arrive in a few days.
The package of the 409 says it is a compromise between relative strength and easy workability by hand, so that is…"
"Off Center Harbor has a great video series for all things epoxy with Russel Brown.
Mastering Epoxy with Russell Brown, Part 3 – Fillets, Hardeners & Fillers
In this video he says he does a blend of 404, 406 & 407 for his…"
Sliding hatches repair?
My Pahi 42 comes with three sliding hatches for the deck pod and the two hulls. I like the design in general as it is easy to open by foot and strong enough to step on as well.But after what I assume must have been many years for sliding back and forth, they cut though all the epoxy mesh down to the bare wood; Luckily not rot yet as the wood seems to dry out well at these places.The issue is mainly that the sliding rails seem to be placed on an very oddly shaped strip of hardwood, that while…See More
"I should have added to the above that fumed silica is probably the best thickener for general bonding. A blend of cotton and silica is also great for wood."
"Wow, great site. I could get lost for days over there. ; )
Cheers."
"Excellent, that helps a lot!"
"Here’s a quick reference for generic substitutes for the West System fillers:
403 For laminating/bonding porous surfaces. Milled cotton fiber or cotton flock. Maybe blend in some silica to reduce drips/sags. Great for plywood scarfs or…"
"Cabosil M5 seems to be the brand name for fumed silica that you can find online retailers in Europe for."
"https://christinedemerchant.com/filler-silica.html
Seems to have some good tips."
"OK, looks like "Fumed silica" is the same and available from some online retailers here in Europe. Interestingly this overview in German says that silica filler is best for bonding wood, while chopped glassfibre is not (it is however…"
"The Gougeon book doesn't seem to mention the 409B used in the video, but it seems to confirm that "microbaloon" fillers are not the best for strong fillets.
It's a bit annoying that the book only promotes the West Systems…"
Profile Information
- I am:
- I own a Wharram
- What boat (s) are you building or do you own?
- Pahi 42
- Country, City, and State?
- Azores, Portugal
- About me or us?
- Just renovating my Wharram.
- Looking to?
- Exchange ideas about renovating an older Wharram
- Website:
- http://windswe.pt
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