What can I bond marine ply together with?

matnoo

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Im making an outboard transom. Ive cut all the pieces out of marine ply and just need to laminate several together.

Theres no way I can get to a chandlers though, what can I get from B+Q thatll do the job? It going to be placed just above the waterline and coated in marine paint.

Should I just use epoxy/fibreglas resin?

Mat
 

boatmike

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If you have epoxy use that. When you have bonded all the bits together paint around the end grain with it too to seal it.
 
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If you have epoxy use that. When you have bonded all the bits together paint around the end grain with it too to seal it.

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He's right in my book as well ... Epoxy is best ... Because it's a long-term item ... use slow set epoxy such as araldite normal etc. Basically the 24 hrs stuff. Quick setting ... especially the 1 hr or less is brittle after a while in exterior applications .......
 

Strathglass

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It would be difficult to get an adhesive from B&Q to be up to the task.

The best stuff to use would be epoxy resin Such as this with something like microfibres.

Clamp all the sheets together but not too tight otherwise you will squeese all the glue out.

You could also use D4 polyurethene glue Such as this.

It is much easier to use but not quite as strong as epoxy but for this task would be quite adequate.

Iain
 
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It would be difficult to get an adhesive from B&Q to be up to the task.

The best stuff to use would be epoxy resin Such as this with something like microfibres.

Clamp all the sheets together but not too tight otherwise you will squeese all the glue out.

You could also use D4 polyurethene glue Such as this.

It is much easier to use but not quite as strong as epoxy but for this task would be quite adequate.

Iain

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Sorry .. are you serious ? Not trying to be rude but B&Q doesn't have a good enough glue ?????

Last time I was in there I seem to remember quite arange from well established, reputable companies such as Araldite etc.

Of course we could all buy our resins from Ebay and improve a lot of other economies ??? /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif

The guy is glueing up a transom pad for outboard .. it's not QE2 or Mission to the moon ... /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/wink.gif
 

Strathglass

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The problem with B&Q is that a few years ago they decimated the range of products they stocked and concentrated on fast sellings items only.
Also some branches of B&Q are much better stocked than others.

My local one is not very good- For some things.

They do stock araldite, but only in very small tubes.
Whilst their range of products is improving, I have not yet found any glue in B&Q I would happily use for gluing ply together for marine purposes. Perhaps some day.

I just used ebay as a simple way of showing the relatively high cost of epoxy as many posters had recomended.

I would use the much less expensive and easier to handle D4 polyurethene for the task the priginal poster was enquiring about.

Iain
 

Graham_Wright

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B&Q do (did) sell "Serious Stuff" by Evostick. Seems to stick anything to anything (still can't get it off my screwdriver). Works on wet surfaces (they say). No instructions, no ingredients but certainly lives up to the "anything" claim.
 
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The problem with B&Q is that a few years ago they decimated the range of products they stocked and concentrated on fast sellings items only.
Also some branches of B&Q are much better stocked than others.

My local one is not very good- For some things.

They do stock araldite, but only in very small tubes.
Whilst their range of products is improving, I have not yet found any glue in B&Q I would happily use for gluing ply together for marine purposes. Perhaps some day.

I just used ebay as a simple way of showing the relatively high cost of epoxy as many posters had recomended.

I would use the much less expensive and easier to handle D4 polyurethene for the task the priginal poster was enquiring about.

Iain

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No problem ......... but the area I frequent in Hampshire has two "Super Depots" equidistant from my mum's place !

My personal preference in Epoxy's / Polyester etc. are from Devcon ... as they do larger tins and more range ... some with fibres, micro-ballons, etc. Preference when it comes to bonding structures. It was shown to me by other modellers when I did Radio Control Models ....
Later I have used Devcon successfully on marine stuff ...

But yes Epoxy is not cheap - but then again it is one of mans strongest adhesives ...
 

aitchw

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But yes Epoxy is not cheap - but then again it is one of mans strongest adhesives ...

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That's as maybe but for the amount of epoxy involved in gluing a few pieces like this together it shouldn't be too bad. I use my general small stock of basic ingredients when I need epoxy for gluing so never have purpose formulated stuff sitting around doing nothing.
 

Cliveshep

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Ultramite (from Travis Perkins for example) is the new name for Cascamite which is a powder waterproof resin glue eminently suitable for boat building. Just mix with water and spread/clamp up Boat builders have been using it for years before the more modern epoxies came out. Easy to use, very strong, has gap-filling properties, wash brushes in water BEFORE it sets.

If you really want to be posh and spend time/money, look at West Systems on the web for epoxy, but you'll need fillers, cleaners etc and for a simple laminated transom hardly worth the bother and certainly not worth the extra expense. Whether or not the B & Q Depot or Warehouse branches keep it is a moot point - I do not know, but most towns of any size have a branch of Travis Perkins.
 
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[ QUOTE ]
But yes Epoxy is not cheap - but then again it is one of mans strongest adhesives ...

[/ QUOTE ]

That's as maybe but for the amount of epoxy involved in gluing a few pieces like this together it shouldn't be too bad. I use my general small stock of basic ingredients when I need epoxy for gluing so never have purpose formulated stuff sitting around doing nothing.

[/ QUOTE ]

Quite agree ... in fact ... you'd probably find a reasonable set of araldite tubes glues a lot more area than many imagine !

For general runo'mill gluing with epoxy ... the yellow Super Epoxy Packs are good ... and slightly cheaper than araldite.
 

pheonix

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i'll second cascamite/extramite/ultramite powdered resin water solvent before curing, a favorit with boat builders for years although the original cascamite deteriated with age but this has now been resolved with the newer versions
 

xeitosaphil

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" Im making an outboard transom. Ive cut all the pieces out of marine ply and just need to laminate several together ".


What do you mean exactly ? is this structure part of a timber boat or is it just a Pad to put the outboard motor on ,or is it a block to fix the motor onto which fits on a steel Bracket like a one of those that rise and fall?

As many have said the proper way to do it is Epoxy / Cascomite / Cascophene boatbuilders glue or this new polyurethene one part adhesive which foams and sets hard it also is a gap filler and completely waterproof.

If B&Q is your only option , get some Evostic Resin " W " Waterpoof Glue sold in a Blue bottle which is interior and exterior , and also waterproof. If you only want to make a doubler pad for the outboard this will suffice . You could always put a couple of screws in as well and make sure it is well coated with Marine Varnish or Paint .Should last for many years.
 
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