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post #1 of 12 (permalink) Old 07-06-2014, 07:14 PM Thread Starter
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Default router table top glue up question

Hello all. I'm finally getting near the end of building my router table. I've been planning to use a piece of 3/4" melamine that I have, and glue it to a piece of 3/4" plywood for stability. I just remembered that the melamine is on both sides of my intended top.

I'm a little hesitant about trusting the melamine surface on the bottom to adhere to the plywood with glue. Has anyone done this successfully? If so, should I use regular titebond II glue, or something else?

I also have a piece of countertop that is 15/16" thick, also with melamine on both sides. Since my table is pretty much Mike's Oak Park design, with the legs as braces and also a narrow oak front brace, I'm wondering if the 15/16" would be sufficiently stable to use by itself.

Any suggestions are appreciated. Jim
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post #2 of 12 (permalink) Old 07-06-2014, 08:32 PM
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Jim never used it but they make this,Titebond Melamine Glue, 16 Ounces
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post #3 of 12 (permalink) Old 07-06-2014, 08:42 PM
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I like weld bond glue , but first I would sand the melamine with 50 grit to help adhesion
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post #4 of 12 (permalink) Old 07-07-2014, 12:19 AM
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First of all, you don't need the plywood. You are much better off with a frame with multiple cross members under it instead. I used 5/8" melamine for my last table top and even put some 3/8" inch deep grooves in it for t track and it stayed flat for 4 years now.

If yo do feel the need to use the ply I would consider contact cement. The melamine glue will stick to it but there may be a problem. I bought my first bottle of melamine glue at a woodworking show directly from a Franklin rep. He said that you could glue melamine to melamine even but only over a small area because the water has to flash off before the glue will dry and stick. I would be a bit concerned about the water being able to flash off from the center of a router table top. It might work fine. The ply might soak it up well enough to get the job done but I just can't say for sure. If someone else has tried it it would be good to hear from them. As far as the melamine glue is concerned I think every shop should have a bottle. It is the only glue I use on panel boards anymore.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #5 of 12 (permalink) Old 07-07-2014, 06:38 PM Thread Starter
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Thanks for all the helpful suggestions. Charles........I'm glad to hear that you've had good luck with just using the single layer. I thought that multiple cross members would be a good idea too. I'm planning on the one oak strip at the front, and also narrow ones between the legs fore and aft of the router. I tried all that on a prototype that I screwed together, and the narrow ones still left me the space I need.

Thanks again to everyone, and I'll post my progress. Jim
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post #6 of 12 (permalink) Old 07-07-2014, 09:29 PM
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Jim
We're in the process of making about 80 melamine tables for a company. 2x8 foot, 2x6foot,30 inch x 8 foot and so on.the tops are solid and we glue a 6 inch wide stiffener around- also to get a 1 1/2inch makeup for the oak facing. Anyway,this is glued with melamine glue and held in place with pneumaticly driven 1/4 crown staples . We don't know how long till the glue will dry but the staples will hold till it does. We've had no trouble with the nearly half that are installed and the 30 inch ones have about a 24 inch span between the 80-20 extruded aluminum supports.
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post #7 of 12 (permalink) Old 07-07-2014, 09:48 PM
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Jim my frame was made out of 1 x 4s with cross members as close as possible to the plate opening. I joined everything together including top to frame with biscuits.

Theo has a table that is much older than mine that is 1/2" ply laid onto a 2 x 4 frame and his is still flat according to his posts.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #8 of 12 (permalink) Old 07-08-2014, 01:11 AM
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post #9 of 12 (permalink) Old 07-08-2014, 01:40 AM
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Quote:
Originally Posted by Cherryville Chuck View Post
Theo has a table that is much older than mine that is 1/2" ply laid onto a 2 x 4 frame and his is still flat according to his posts.
Yep, very true. The 2X4 chunks are a veritable spiderweb, with no very large spaces. Everything is glued together, and the only metal is several bolts which are used to bolt it to a bench shelf.

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post #10 of 12 (permalink) Old 07-08-2014, 09:36 AM Thread Starter
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Charles.......I was just getting ready to write back and ask how you attached the top to the frame. I also like the idea of cross members being as close as possible to the plate opening. Thanks.

Dennis......the stiffener boards sound like a good idea.

Mike....I'll have to look up your pictures and see.

Thanks to all.
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