Anybody heard about this wood

[Zumsel]

Has anybody of the formum members experience with wild jack wood (artocarpus hirsuta)? I'll get my next boat built in India (traditional carvel planked on sawn frames) mainly out of this wood. And any advice how I should protect the hull bottom againts worms? Would a good antifouling over red lead paint be enough?

Jochen

[Thad Van Gilder]

you know,
I haven't had much luck getting bottom paint to stick to red lead. don't know why.

-Thad

[cbob]

Zum, Read the instructions on the Anti Fouling Can. I'm sure red lead isn't called for. Red lead is for the inside?? Luck, cbob

[Dale Genther]

I have also had problems getting bottom paint to stick to red lead.

[Zumsel]

Strange, I really didn't expect that. As far as I know my builder is doing that for years now. And I have spoken to one owner of a sailingboat, built by this yard, which is happy with anti fouling on read lead now for more then ten years.
Jochen

[alienzdive]

All these posts are coing from different countries, different countries and regulations have different additives/mixtures/contents etc. You may find that "Red Lead" in one country is a totally different product as to what you may find in another country!

[imported_GregW]

Zumsel,
Who is building your boat? Is it that French guy in Pondicherry?

[Bayboat]

Artocarpus is the genus for breadfruit (A. communis). The term "jackwood" suggests that A. hirsuta might be the tree that bears "jakfruit", a close relative of breadfruit. If jackwood is anything like breadfruit wood, it should be pretty good for boat building. Many a Pacific Island dugout was hewn from a large breadfruit tree.
I don't understand the problem with red lead. I've used it for years as a primer for antifouling paint.
In tropical waters the best protection against shipworm is copper sheathing. Otherwise, frequent inspection and good coverage with antifouling paint.

[ 02-18-2005, 06:07 PM: Message edited by: Bayboat ]

[Zumsel]

Thanks so far for your comments!!!

@ GregW No, my boat is being built by a builder from Mangalore. Look at this topic to see some of his work. http://www.woodenboat-ubb.co m/cgi-bin/UBB/ultimatebb.cgi?ubb=get_topic&f=1&t=008766&p= (http://www.woodenboat-ubb.com/cgi-bin/UBB/ultimatebb.cgi?ubb=get_topic&f=1&t=008766&p=)

Jochen

[ 02-19-2005, 08:06 AM: Message edited by: Zumsel ]

[Lucky Luke]

Hi Zumzel,

Yes, Jackwood (from the tree that produces jackfruit - alias breadfruit as hereabove mentionned) is a very acceptable wood. In Reunion Island (where I first started sailing....long ago) it is used for boatbuilding. It is also used in Indonesia, when they cannot afford more expensive one, and some report being very happy with it. Not much in other parts of SE Asia, as far as I know.

Antifouling on read-lead: of course...!

Good luck with your project smile.gif

[ssor]

The Pardeys have had some success with good old fashioned creasote, several coats. check their book on building "Taleison"(sp) But I read just recently that they believed that they still had not suffered any damage from worms.

[carioca1232001]

A master boatwright from the State of Bahia (NE Brazil)told me recently that jackfruit wood is superb for outside planking, basically because it is light, strong and has a natural resin-preservative, which turns away borers/worms and fungi. Virtually rot-resistant, says he.

They still use it in Bahia - and perhaps in the states further north - when they can get it . Apparently, there is a great deal of environmental/preservation control now on felling jackfruit trees.

Perhaps I will take some photos of some of the plentiful specimens in the hills surrounding Rio and post them here for all to see. The Portuguese introduced them into Brazil from India, you know Mangalore,Goa etc.

BTW, in the late 40´s my wife´s uncle won a bet with an unknowing American executive posted to Rio, on the possibility of a tree-bearing fruit weighing over 10 kgs. ;)

[Jay Greer]

I swear by creosote as a primer for bare bottom planking. Red lead the seams prior to caulking. Creosote the bottom before applying bottom paint.
I even mix it with the paint for thinning. That is with oil based bottom paints.

[Con LanAdo]

You can swear by creosote all ya like but creosote will kill ya faster than Phillip Morris.
No joke - very deadly. Long term use not advised

[Dan McCosh]

I haven't looked lately,but red lead was the standard recommended primer for old-style bottom paints such as Red Hand. Probably not used these days due to restrictions. I've often primed new plank replacements with it, then used bottom paint.

[Dan McCosh]

I haven't looked lately,but red lead was the standard recommended primer for old-style bottom paints such as Red Hand. Probably not used these days due to restrictions. I've often primed new plank replacements with it, then used bottom paint.

[Chan]

I don't think you can even buy creosote in the states anymore

[Jay Greer]

Wahl, we have a secret stash of creosote. I do think you can still find it if you look hard enough. Yes, it is poison so don't drink it, breath the fumes or get it on your skin. The same holds true for bottom paint.
Jay

[Commissioner]

We have the remnants of an old creosote lumber treatment plant here on Bainbridge island that has since been converted into an EPA Superfund Site (moneyhole). They say there is still a million gallons of the stuff underground but they can't get it out because it destroys the equipment of any of the methods they have tried (various suction schemes). Anyways, there are still old guys runnng around here that used to work at the plant, they say they were basically covered in the stuff everyday with no ill effects . . . (maybe they really worked in the office)

[TimothyB]

Creosote is dangerous if handled often, but it's not as hazardous as epoxy in many respects. Certainly it is as least AS hazardous as epoxy if NOT less. If you handle it with care, as with any preservative worth its name, it will pay you back with long years of benign service. Especially since it is supposed to only go outside the boat, and then only up slightly above the waterline.

Bottom paint is definitely more hazardous that Creosote, given it's absolutely packed with poison.

Also, in the states I believe you can still get Creosote for 'industrial' purposes. This is sort of the same deal as Red Lead.. not illegal to buy just not legal to USE in certain circumstances. You can't just buy it at Kmart but I'd bet you could get a couple of large lots of it from various small coal concerns...

...but thats a guess. Check it out first :) I will say a cursory search on google has yielded too many cleaners and musical group hits to find anything related to actually buying it. I did find out that in 2003 the EU banned its use by 'unlisenced' folks for fear of skin cancer risks.