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#11
posted to rec.boats.cruising
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Anti fouling paint
Hi Bruce,
Did you try Chulia Street? On Mon, 14 Apr 2008 19:30:38 +0700, Bruce in Bangkok wrote: The last time I was in Penang and talked to a chemical shop there the owner said "I'll keep selling TBT as long as the Malaysian Navy uses TBT based anti fouling".. So you are probably correct. unfortunately I can't buy it. Bruce-in-Bangkok (correct email address for reply) |
#12
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 05:34:03 -0400, "Roger Long"
wrote: I epoxied a solid copper ring around the through hull for my transducer when I set the flush fitting a bit too deep. I figgured that would be that cat's pajamas but it slimes up and the long slime threads jamb the paddle wheel just about as fast as bare fiberglass would. No barnacles grow on the ring but the grow briskly on the bare plastic paddle wheel 1/16 inch away from the copper. If I had coppered the whole boat, I would expect to need to scrub it every month even up here in Maine where fouling is light. I now paint the copper ring just like the rest of the bottom. I'll let you in on a secret. Take the damned speed log transmitter out, plug the hole and use the GPS. No more barnacles on the paddle wheel. You do need some penlight batteries but that is easier then jumping over the side in September to scrape the paddle wheel, or having to pull the damned thing and sea water squirting all over the electrics. Heck, I used to sail from Muscungus bay up to S.W. Harbor with a compass and one chart. Just head north out of Muscongus bay till you can't see any land out the port side and turn left. Keep going 'till you see one of those little white boats and just drift on by and holler "Where am I?". You may get told, "You're out in a boat", but most of the time they'll tell you where you are. :-) Bruce-in-Bangkok (correct email address for reply) |
#13
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 21:04:13 +1000, Herodotus
wrote: Hi Bruce, Did you try Chulia Street? On Mon, 14 Apr 2008 19:30:38 +0700, Bruce in Bangkok wrote: The last time I was in Penang and talked to a chemical shop there the owner said "I'll keep selling TBT as long as the Malaysian Navy uses TBT based anti fouling".. So you are probably correct. unfortunately I can't buy it. Yup, that's the guy - known as the "Chemical man". Bruce-in-Bangkok (correct email address for reply) |
#14
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 21:01:13 +1000, Herodotus
wrote: Greetings Bruce, I use Jotan and merely add between 5 to 10% TBT - usually 5%. I was told not to use more than 10 percent as it will affect the drying and adhesion of the antifouling. It works well for me. Of course some of the problems people may have experienced may have been applying the wrong anitfouling ove and existing layer. I know when I started using Jotan in Malaysia instead of ABC-3, I had to sand back hard and apply a Jotan primer coat. - But you and they would have thought of that aspect. cheers Peter I've been leaning that way. Met a fella today who's mate painted boats for some years and he makes about the same recommendation you do. I'm beginning to think that the people that had problems were using too much TBT as much as 10% by volume, or more. the more research I do the lower down the scale the TBT addition seems to be. Right now I'm getting recommendations between 3 - 5 % and not more. I must have the remnants of 15 years of anti fouling on the bottom so this time I';m going to scrape it all off, prime and a tie coat and a couple of coats of bottom paint. Probably be 5 knots faster :-) Bruce-in-Bangkok (correct email address for reply) |
#15
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 21:00:44 +0700, Bruce in Bangkok
wrote: On Tue, 15 Apr 2008 21:04:13 +1000, Herodotus wrote: Hi Bruce, Did you try Chulia Street? On Mon, 14 Apr 2008 19:30:38 +0700, Bruce in Bangkok wrote: The last time I was in Penang and talked to a chemical shop there the owner said "I'll keep selling TBT as long as the Malaysian Navy uses TBT based anti fouling".. So you are probably correct. unfortunately I can't buy it. Yup, that's the guy - known as the "Chemical man". Bruce-in-Bangkok (correct email address for reply) Yes, Mr Ong of Langtrau Traders. Now in his 80's and speaking perfect Oxford English (though I wouldn't expect that you as an American would appreciate well spoken English), he has had a very interesting life. His father died when he was 9 leaving his mother to scrape a living for the family unassisted. When the Japanese occupied Malaya, they set up a medical school at Melaka and he was chosen to attend. After his 3rd year the British returned and the school was closed down, thus terminating his medical studies. Returning to Penang his Doctor friends suggested that, as drugs and medical supplies were hard to get hold of, he should think of buying them in Singapore on the black market and smuggling them back to Penang (the best city in the universe where the most beautiful women are just that - women) where they would buy them off him. Subsequently he somehow obtained a military uniform and a weekly pass (forged or otherwise acquired) and made the weekly round trip by train. At the time Singapore was a military area and was no go to just anybody. He went on to found the largest chemical company in Malaysia and when he reached his 60's retired, handed it over to his sons and started selling all kinds of chemical supplies from that shop house. He is an easy person to make any excuse to sit and have a cup of tea with and just ask questions. The prices of his TBT and other useful boaties' chemicals is ridiculously low. I was planning to leave Curacao today bound for Panama and have only just found out that there is at least an 8 week delay for transiting the canal. Only 3 yachts are allowed transit each way on 3 days per week. This delay means that I would have to go hell for leather to reach your end of the world before the cyclone season starts in November - and with La Nina.... I am thinking of heading home for a few months. Damn!! Asalaam Peter |
#16
posted to rec.boats.cruising
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Anti fouling paint
"Bruce in Bangkok" wrote in message ... I must have the remnants of 15 years of anti fouling on the bottom so this time I';m going to scrape it all off, prime and a tie coat and a couple of coats of bottom paint. Probably be 5 knots faster :-) You make it sound simple but I have taken all the a/f off a 34' boat and it is not an experience I ever plan to repeat. I used a paint remover that was guaranteed not to harm fibreglass and it did not , but this meant it was not all that brilliant at dissolving paint either. It left behind some thin residues which I washed off with the thinners appropriate to the a/f. We used a lot of it and although the job was done in the open air we were seriously affected by the fumes. Get a (really) experienced professional firm to sand blast it off in controlled conditions. . |
#17
posted to rec.boats.cruising
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Anti fouling paint
On Wed, 16 Apr 2008 02:19:26 +1000, Herodotus
wrote: I was planning to leave Curacao today bound for Panama and have only just found out that there is at least an 8 week delay for transiting the canal. I'm told that if you use a canal agent the delay can sometimes be reduced to days. Apparently they reserve slots in advance ($$$). I know of several trawlers that have gone through recently with minimal delays. |
#18
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 13:13:07 -0400, "Roger Long"
wrote: if the GPS should go out There is really no excuse for not carrying a spare hand held or two and a few extra batteries. I use them in the dinghy at times. |
#19
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 15:24:46 -0400, Wayne.B wrote: On Wed, 16 Apr 2008 02:19:26 +1000, Herodotus wrote: I was planning to leave Curacao today bound for Panama and have only just found out that there is at least an 8 week delay for transiting the canal. I'm told that if you use a canal agent the delay can sometimes be reduced to days. Apparently they reserve slots in advance ($$$). I know of several trawlers that have gone through recently with minimal delays. So I've heard but both from two agents and 7 yachts who reported back, this is definitely not happening for yachts. One agent said that people were even trucking their boats across by road which is reported to be not a good one. This stopped when the triler broke on one such trip and the yacht fell off. |
#20
posted to rec.boats.cruising
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Anti fouling paint
On Tue, 15 Apr 2008 16:50:07 -0400, "Roger Long"
wrote: I do but that's not what I was talking about. Someday, the airforce is going to detect an unidentifiable radar target and turn the whole system off just in case it is a poor mans GPS guided missile. Supposedly there is some new invention called a "sex tent" or some such which uses heavenly bodies to determine position without satellites or radio waves. What will they think of next ? :-) |
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