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Boat gluing ?

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Old 06-20-2012, 09:13 AM
  #1
ddaug
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Default Boat gluing ?

Hi Guys
I am new to site and I think I posted in wrong forum
But here is my problem I bought a dumas big swamp buggy and started the build today this is my first build now my ? the instructions are horrible I have the frame ready to glue together and to deck but they dont tell you what to glue with the shop sold me insta cure 1-3 sec glue and 5-15 sec says gap filler and 30 min slow cure epoxy I tried to tack frame with the 1-3 sec and did not hold any help from the pros would be great and the steps to the gluing process Thanks the ddaug Darrell
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Old 06-20-2012, 10:00 AM
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Default RE: Boat gluing ?

Part of the problem you're having is the material in the kit. Dumas uses a very brittle mahogany that absorbs almost anything that touches it. You need to use either a slow set epoxy or, while not as good, the gap filling CA. If you want to do it up right, don't use the Dumas supplied framing at all except as templates. By making the frames out of aircraft grade plywood, obtainable at the local hobby shop or on line, your boat will be stronger and last longer. It also allows you to build more boats for less $$$$$$$$
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Old 06-20-2012, 10:32 AM
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Default RE: Boat gluing ?

Thanks for the reply you are rite this wood soaks up the glue bad What about the skin should I use that or not.
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Old 06-20-2012, 10:33 AM
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Default RE: Boat gluing ?

use the gap filler first.be sure your parts are stable and good fit, if that doesnt stick try 1-3 sec zap. and once completely stable fillet all the jonts with 2 part epoxy.
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Old 06-20-2012, 10:48 AM
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Default RE: Boat gluing ?

Thanks dadkins
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Old 06-20-2012, 11:15 AM
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Default RE: Boat gluing ?

If the skin is the 1/16" birch ply, go ahead and use it. The birch has a much denser structure and will hold the glue better
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Old 06-20-2012, 11:28 AM
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Default RE: Boat gluing ?

My parts seem to be a mix of both I am getting it to hold just taking time I will just get it tacked and then use the epoxy to finish the gluing The process is not gonna match there dumb instructions but it will work out just fine this is just the first airboat and once I get the steps down I am gonna build my own boat from scratch this one is just a learning process
Thanks and any other tips would be great the ddaug Darrell
Keep on grinin and dont let the props stop spinin
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Old 06-20-2012, 12:00 PM
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Default RE: Boat gluing ?

My BSB
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Old 06-20-2012, 12:02 PM
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Default RE: Boat gluing ?

more
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Old 06-20-2012, 12:04 PM
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Default RE: Boat gluing ?

couple more
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Old 06-20-2012, 12:06 PM
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Default RE: Boat gluing ?

last one. boat matches the duck.
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Old 06-20-2012, 12:09 PM
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Default RE: Boat gluing ?

really the last one.
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Old 06-20-2012, 01:42 PM
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Great job dadkins duck is awsome
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Old 06-20-2012, 05:19 PM
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Default RE: Boat gluing ?

here is the one i had (sold the hull kept motor/electronics)


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Old 06-20-2012, 06:12 PM
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Default RE: Boat gluing ?

That was good one too What do you use for your finish
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Old 06-20-2012, 06:45 PM
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Quote:
ORIGINAL: ddaug

That was good one too What do you use for your finish
I now have Dadkins' BSB. I'm going to rebuild it and run a .90 on it - she's a bit of a pig in the weight department.

Mahogany is an exotic specie of wood, and like many exotics, it can be quite oily. So much that some glues will not adhere well. I always lightly sand it to remove the surface oils before gluing it and that usually does the trick. I do agree with using a domestic hardwood like birch as its lighter than mahogany and bonds better since its not oily. I do not use CA glue for any frame or skin adhesion. I strictly use Epoxy, both 15min and 30min. Heating the epoxy makes it spread better and cure faster. A small 300watt halogen light works well.
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Old 06-20-2012, 08:08 PM
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Default RE: Boat gluing ?

Great imfo. thanks Theddaug
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Old 06-20-2012, 09:44 PM
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Default RE: Boat gluing ?

Tite bond 2 than epoxy works for me. 20+ wood boats
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Old 06-21-2012, 06:37 AM
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Quote:
ORIGINAL: blizard05

Tite bond 2 than epoxy works for me. 20+ wood boats
I've had wood glue come loose in the past if it stays wet too long. It will work but I trust epoxy better because it cures much faster and it's very chemically resistant. BUT if wood glue works for you, that's cool.
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Old 06-21-2012, 07:34 AM
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Default RE: Boat gluing ?

I have to agree with the previous post^^^^^^
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Old 06-21-2012, 08:06 AM
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I am using only epoxy it is holding much better
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Old 06-21-2012, 11:36 AM
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Default RE: Boat gluing ?

all of my painted boats are autmotive primers/paints and clear for wood stained or un stained i use spar varnish
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Old 06-21-2012, 03:01 PM
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Quote:
ORIGINAL: ddaug

I am using only epoxy it is holding much better
I get Bob Smith epoxies from Hub Hobby in Richfield, and have had good luck with it. I haven't tried their finishing resin yet though. Good stuff. I look forward to seeing your project when you get it done.

Whoever has a set of plans for the BSB, could you scan them and email them to me? I'd like to get an idea of how the inside of the hull is assembled so I can rebuild it. I don't want to just cut it apart without knowing how it's assembled.
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Old 06-27-2012, 09:02 AM
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Default RE: Boat gluing ?

Thanks for the epoxy help
Also can you guys tell me if I use spray primer on my boat do I still need sanding sealer first or can I just use the primer then my paint.
Another issue is my instructions does not tell me how to put my connection parts on my rudders for my control rods can anyone show me pics or explain this
I have some plastic parts that came with the big bass buggy but like I say no instructions thanks guys The ddaug
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Old 06-29-2012, 12:19 AM
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Is this what you mean? Or where the control rod from the servo is attached to the rudder?





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