Weak glue ?

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Weak glue ?

Postby saywhatthat » Wed Jun 26, 2019 12:28 pm

I’m not a wood type person. Make too many mistakes. Been waiting for one molded fiberglass part for over 7 months. To finish 3 trailers. So need to make a tooling buck. .Trying to save on outlay of money
Will perform this by gluing oak door stop to primed 2 by 3. After tooling is completed .Would prefer to separate the two. Two sided tap will leave a large gap. Any thought on this. Thank you.
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Re: Weak glue ?

Postby tony.latham » Wed Jun 26, 2019 12:44 pm

I think you are asking about taking two pieces of wood apart after you've used them for a mould or some such fiberglass project.

If that's the case, I would consider using double-sided carpet tape or screws. :thinking:

T
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Re: Weak glue ?

Postby saywhatthat » Wed Jun 26, 2019 12:58 pm

tony.latham Thank you
I.I think you are asking about taking two pieces of wood apart after you've used them for a mould or some such fiberglass project.

Oui
The carpet tape will have a large gap. Would prefer not use screws. Extremely ornate pattern on the door stop . Concerned with coming from the back side spiting the oak. At $22.00 a running foot.
Il suffit de le faire
D.I.Y Light weight sleeper using D.I.Y rail top components.
viewtopic.php?f=50&t=66751
50 HR. Build 4.5 by 8' using Railtop fiberglass Components
http://tnttt.com/viewtopic.php?f=50&t=70729
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Re: Weak glue ?

Postby tony.latham » Wed Jun 26, 2019 1:28 pm

saywhatthat wrote:tony.latham Thank you
I.I think you are asking about taking two pieces of wood apart after you've used them for a mould or some such fiberglass project.

Oui
The carpet tape will have a large gap. Would prefer not use screws. Extremely ornate pattern on the door stop . Concerned with coming from the back side spiting the oak. At $22.00 a running foot.


Pre drill the oak and it won’t split.
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Re: Weak glue ?

Postby Aguyfromohio » Wed Jun 26, 2019 2:16 pm

Furniture makers do a lot of temporary removable glue ups.
They take a fairly mild glue like good old yellow wood glue ( PVA like Titebond original) but they put a sheet of paper between the two pieces.
It holds well enough to clamp or saw or turn on a lathe. When it's time to separate, get a sharp chisel in the seam and give it a tap.
It pops apart and you clean up the glue residue.

Here's a link.
https://www.woodworkersjournal.com/maki ... ue-joints/
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Re: Weak glue ?

Postby saywhatthat » Wed Jun 26, 2019 7:42 pm

Aguyfromohio Thank you for the link.
Il suffit de le faire
D.I.Y Light weight sleeper using D.I.Y rail top components.
viewtopic.php?f=50&t=66751
50 HR. Build 4.5 by 8' using Railtop fiberglass Components
http://tnttt.com/viewtopic.php?f=50&t=70729
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Re: Weak glue ?

Postby GTS225 » Wed Jun 26, 2019 10:03 pm

The piece of paper is also a trick used in mold making for molten metal sand casting. It's used fairly often, even for wood turning on a lathe. Many times, the mold maker will put zip ties around the piece for additional safety on a lathe.

Roger
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