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Messages - Rbob

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1
General Discussion about the Great Alaskan / Re: Little help please
« on: May 30, 2020, 07:28:23 PM »
I have no clue either!  I know that one end goes to the lower unit.


2
Making slow progress, rear steering station and battery box is in progress. pieces cut today and glassing them before the install.

Helm and seat boxes are done, still need to mount up the heater so the list keeps getting longer.

Pic:


4
I did not install drain and I am hoping the seal does a fairly good job keeping most of the stuff out of the fish box.  Not worried about the ones in the wheelhouse.

I thought about it but talked myself out of the extra trouble (for me)  Fish in the box wont be there more than a day so if a little water ( fish slime etc) gets in there I dont think it will hurt anything.

I am getting side tracked till next Thursday, leaving tomorrow to do some shrimping in the San Juans.  That should help my attitude.



 

5
I have a few, they are overbuilt mainly because of one friend that weights close to 300lbs and they do not flex when he walked on them.  Depending on the size of the hatch 1/2" and 3/4" with glass in the middle may be stiff enough. 

I originally bought latches but other than the fish box I wont be using them, probably just drill a hole big enough to get a good size finger into.

Pics:
 

6
Thanks for reading it, I have been making some progress just not enough to make a post but soon.

7
That is a beautiful sight!  I cant wait to see it in the water which looks to be soon and I am amazed how fast your boat is coming together.


9
Whole lotta nothing happening fast here.

Ordered the hydraulic steering and ready to mock that up and in the meantime I have nearly completed the helm, glove box, chase for fuel fill and compartments in front of seating.
Pics:


10
Json,

Just to make your head spin, most aluminum tanks are not treated or have any special coating and they seem to have a good reputation for longevity.  (someone may correct me)  I like the way Dan Boccia installed his aluminum tank, although I am not sure what prep he did, but applying uhmw runners so no crevice corrosion can occur and allowing water / air to flow under the tank is a first class install.  Crevice corrosion is failure waiting to happen.

There are others that have installed aluminum tanks so maybe someone will chime in and offer advice.

11
Json,


Just my 2c.

I have painted a few aluminum things (very few)  but I can attest to using the aluma-prep and alodine conversion coating to being the best.  I painted an aluminum drift boat for a customer over 30 years ago and it still looks new, of course it is stored inside but I used the acid cleaner and alodine conversion coat before applying epoxy primer and single stage enamel paint.

I coated my aluminum fuel tank with raptor after cleaning it with a scotchbrite and some cleaner (cant remember!) and thought it would be bullet proof, after pulling up the floor a couple years later most of it had flaked off...  It may have been the raptor liner not being able to expand/contract with the aluminum but it was a failure.  We did some repair work on my aluminum boat, sandblasted where it was pitted and my son blew it off and applied "allmetal" filler and sanded it smooth, I knew it needed to be cleaned with the aluma-prep first so I checked the adhesion with a putty knife and every patch easily came off so we re-blaste the spots and cleaned with aluma-prep before applying the filler.  You must clean the aluminum of the oxidation which is mostly invisible, rinse with water, blow it dry and immediately apply whatever product you are using without hesitation... 

If you try cleaning the backside of your test piece with aluma-prep, rinse and dry you will find the aluminum feels sticky which is clean clean clean, and paint will stick to it.


I am a fan of epoxy primer, not so much of a fan for etching primer.  For etching primer to be effective it has to be sprayed on wet or it wont etch and it runs easily, spraying it on dry does nothing for "etching".  2-part epoxy is king in my opion.  I will post a link for the aluminum cleaner, open up the technical process document below it and it will have the info you need.   The other link for the epoxy primer you will find very useful, they also have epoxy primer high build that is underwater rated polyamide cured epoxy.

https://www.aircraftspruce.com/catalog/cspages/alumiprep.php

https://tamcopaint.com/collections/primers/products/dta-epoxy


12
Sexy looking boat!

13
General Discussion about the Great Alaskan / Re: Fish box drain
« on: May 07, 2020, 07:00:19 AM »
The biggest drain tube that will fit, 2" should not hold anything back or clog.

14
General Discussion about the Great Alaskan / Re: Fish box drain
« on: May 06, 2020, 09:37:40 PM »
My head is hurting thinking about that!

15
Very impressive to see a build come along so quickly and well thought out, I have trouble figuring out relatively simple stuff. I can tell you have been around wood working for years, you make it look easy.

Hats off to you! 

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