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15th December 2010, 07:02 PM #16Senior Member
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Glue for laminating hardwood
Hi Matt Finish,
Go for a good marine quality 2 pack epoxy such as Epiglue or Techniglue. At 20 oC you will have at least 2 hours working time to play with. Don't use the same container if you need to mix a second batch of glue to complete the job as both products in my experience self catalyze and your second batch starts to cure very quickly with lots of heat if mixed with the residuals of an earlier batch. Try to prepare your timber immediately before gluing certainly not more than a day in between the processes particularly for the denser timbers. I leave parts glued with those epoxies for three days before releasing the clamps in Tassie, full cure at 20oC is 7 days. I usually have several jobs going at once though so I'm not in a rush to get the clamps off.
Old Pete
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15th December 2010 07:02 PM # ADSGoogle Adsense Advertisement
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15th December 2010, 08:58 PM #17
My suggestion would be to put that particular one in a corner as a learning experience, CNC a new form from MDF and use the MDF version as a template to go with a bearing guided router bit to churn our a stack of more accurately machined parts, to cut down on the amount of sanding requred!
Or pop that one on a bandsaw and make a few strategic cuts (take the top and bottom pieces off) to make it easier to sand. The parts can be epoxied back when sanded, and a bandsaw curf is so thin you'll never notice the cut when reassembled.
A good orbital sander or belt sander is the way to go - orbital if you are not so sanding experienced as they are less likely to gouge like a belt sander can.
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15th December 2010, 09:20 PM #18New Member
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- Nov 2010
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- melbourne
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>old pete,
epoxy sounds great from an assembly time perspective. I was hoping to avoid using it just because its such awful poisonous gunk which i have bad memories of using when fixing surfboard dings. But it may be the only realistic way to go with complex lamination projects like this one.
>master splinter,
the bearing guided router bit sounds like a good idea! This one was done on a home-built cnc router which was probably not as accurate as it should be.. but it was cheap. I think i'll persevere with this one, even if it takes an age to sand properly, as i cant really afford to just dispense with the pricey hardwood ply that went into it. But thank you for the suggestion, and i will go with an orbital sander, less likely to gouge is what i need, i think..
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