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DENNIS
Platinum Nomad
Posts: 29510
Registered: 9-2-2006
Location: Punta Banda
Member Is Offline
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| Quote: | Originally posted by beachbum1A
Like this Dennis? |
Almost exactly. I'll bet the fish just jump right into that boat. 
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dizzyspots
Senior Nomad
Posts: 603
Registered: 9-22-2008
Location: Mescal AZ
Member Is Offline
Mood: rather be on the beach at Gonzaga
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Do NOT fill a boat full of water to check for leaks! The aluminum was designed to float on water (displacement) NOT as a 200gal +/- pointed bucket!
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durrelllrobert
Elite Nomad
Posts: 7393
Registered: 11-22-2007
Location: Punta Banda BC
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Mood: thriving in Baja
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| Quote: | Originally posted by Bob and Susan
use a bead blaster...#10 glass bead...clean it up
a reg compressor with a small $40 blaster from harbor freight will do it
buy the glass beed at home depot
it'll look brand new |
it'll look brand new and then someone will steal it
Bob Durrell
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durrelllrobert
Elite Nomad
Posts: 7393
Registered: 11-22-2007
Location: Punta Banda BC
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Mood: thriving in Baja
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Good info here
http://www.aluminiumdesign.net/design-support/aluminiums-cor...
Aluminium in the open air
The corrosion of metals in the open air depends on the so-called time of wetness and the composition of the surface electrolytes. The time of wetness
refers to the period during which a metal’s surface is sufficiently wet for corrosion to occur. The time of wetness is normally considered to be when
relative humidity exceeds 80% and, at the same time, the temperature is above 0°C (e.g. when condensation forms).
In normal rural atmospheres, and in moderately sulphurous atmospheres, aluminium’s durability is excellent. In highly sulphurous atmospheres, minor
pitting may occur. However, generally speaking, the durability of aluminium is superior to that of carbon steel or galvanised steel.
The presence of salts (particularly chlorides) in the air reduces aluminium’s durability, but less than is the case for most other construction
materials. Maximum pit depth is generally only a fraction of the thickness of the material. Thus, in marked contrast to carbon steel, strength
properties remain practically unchanged.
The picture shows an untreated sample after 20 years off the south-west coast of Sweden. UV radiation, sulphuric acid and nitric acid in combination
with chlorides have not left any deep marks. After 22 years in a marine atmosphere, examination of an untreated aluminium sample (alloy AA 6063)
showed that corrosion attack was so limited (max. depth approx. 0.15 mm) that strength was not affected
Bob Durrell
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woody with a view
PITA Nomad
Posts: 15939
Registered: 11-8-2004
Location: Looking at the Coronado Islands
Member Is Offline
Mood: Everchangin'
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| Quote: | Originally posted by dizzyspots
Do NOT fill a boat full of water to check for leaks! The aluminum was designed to float on water (displacement) NOT as a 200gal +/- pointed bucket!
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okay, not FULL but you get the idea? it sucked when i left my tin boat on the deadman anchor in Bahia and when i paddled out to it in the morning it
had about 15 gallons of water in it that needed to be scooped out. the next night was nearly sleepless as you can imagine.
how do you find a leaky rivet with any degree of certainty? i use water and look for the drips.....
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mulegemichael
Super Nomad
Posts: 2310
Registered: 12-24-2007
Location: sequim,wa. and mulege
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Mood: up on step
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whatever you do don't paint the damn thing; it'll look like crap even more than now...just clean it up and get out on the water.
dyslexia is never having to say you\'re yrros.
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Skipjack Joe
Elite Nomad
Posts: 8088
Registered: 7-12-2004
Location: Bahia Asuncion
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Removing all of the rust from a tin boat seems like an awful lot of work.
Perhaps you can post a picture of it so that we can see just how bad it is. You may get better advice as well.
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captkw
Ultra Nomad
Posts: 3850
Registered: 10-19-2010
Location: el charro b.c.s.
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Mood: new dog/missing the old 1
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Ski[pjack
Hola, are you in baja or at the Mavricks playground ??
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captkw
Ultra Nomad
Posts: 3850
Registered: 10-19-2010
Location: el charro b.c.s.
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Mood: new dog/missing the old 1
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beer cans and leaks !!
There is/was a product called "Gloveit" sold by most chandlerys that works great for finding and sealing leaks in a alum boat..clean boat,,pour in and
drive around to spread around....and ,,yes that dosnt clean the bottom...
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Skipjack Joe
Elite Nomad
Posts: 8088
Registered: 7-12-2004
Location: Bahia Asuncion
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| Quote: | Originally posted by captkw
Hola, are you in baja or at the Mavricks playground ?? |
No Mavericks for me. I don't get off on that. In fact, all the popular events in Half Moon Bay are reasons to leave the place or stay indoors because
of the traffic congestion.
My son went surfing at Martin's Beach the day before the contest. The waves were so large he ended up bogey boarding. He had at least one scary spill.
Said he got some really fast rides.
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durrelllrobert
Elite Nomad
Posts: 7393
Registered: 11-22-2007
Location: Punta Banda BC
Member Is Offline
Mood: thriving in Baja
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| Quote: | Originally posted by Skipjack Joe
| Quote: | Originally posted by captkw
Hola, are you in baja or at the Mavricks playground ?? |
No Mavericks for me. I don't get off on that. In fact, all the popular events in Half Moon Bay are reasons to leave the place or stay indoors because
of the traffic congestion.
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You wouldn't leave during the pumpkin festivale would you?
Bob Durrell
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desertcpl
Super Nomad
Posts: 2400
Registered: 10-26-2008
Location: yuma,az
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I think painting it is well worth the effort, much cooler
especially in hot climes like Baja, you might look into this also
IBoat
http://forums.iboats.com/boat-restoration-building-hull-repa...
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captkw
Ultra Nomad
Posts: 3850
Registered: 10-19-2010
Location: el charro b.c.s.
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Mood: new dog/missing the old 1
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Skipjack
I understand ... The Last contest that had the rouge wave that knocked over some folks,, I was out at the break running a new 25' and enjoyed the sets
first hand..The photo boats where behind me..I came back in around 11:00 am to let my dogs out of car and the crowds had changed from
5:00AM........OMG.,...HOLY ShI_ where did all those folks come from ??? this year (sunday) they closed off the point........
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willyAirstream
Super Nomad
Posts: 1786
Registered: 1-1-2010
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Go to airstream forums, plenty of tutorials on cleaning, buffing alum. Or google `polish alum aircraft`, You will need a 1750 rpm buffer, Dewalt or if
u must, Harbor freight, wool pads, cotton pads and foam pads. It is a 3 step process using cleaner, buffer and polisher. When you are done you will
need to wax it to slow down the constant oxidation. A 3 x 6 area will take about 8 hours. It is a grueling process but worth it.
Once you get a clean smooth finish you can stop or keep going to a mirror shine.
Blasting it will cause minute pitting which will speed up oxidation.
Another idea - Truckers use a product to keep their alum tanks clean, if the oxidation is not bad, not deep, it will clean the white dust off and
leave the alum slightly shiny. Expensive and toxic stuff. Spray on, wash off.
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ddawson
Nomad
Posts: 103
Registered: 9-6-2010
Location: Hilo
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Check this forum. Tons of info: http://www.tinboats.net/forum/
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