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Best Glue?

 
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Old 03-10-2019, 06:08 PM   #1
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Best Glue?


I dont do a whole lot of trim work

I'm working on a small chair rail project

I usually try to glue and pin the outside miters, but I got to thinking about some ca glue with the accelerator spray to make it set instantly

I took some scrap pieces and did a test

first one, ca glue with pins

second one, two small dots of ca glue and wood glue on joint(ca glue was used just to hold in place until wood glue cured) plus pin nails

third one, just wood glue with pin nails

I let them all sit for 24 hours (cure time for wood glue) , I tried breaking all three joints apart this morning .

first one was very hard to break

second one was tough but not that hard to break

third one broke very easy

I feel like the ca glue worked very well based on my small test

any one have any real word experience between the two different types?


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Old 03-10-2019, 06:13 PM   #2
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Re: Best Glue?


trim was prefinished oak

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Old 03-10-2019, 06:31 PM   #3
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Re: Best Glue?


Surprised the yellow glue failed the easiest.

My go to is usually yellow glue with a couple drops of CA (2P-10). Now they have a new glue, 2P-10R. Suppose to be more resilient against shock fracturing.

What was the yellow glue? I use TBII
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Old 03-10-2019, 07:00 PM   #4
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Re: Best Glue?


Just pin nails don't provide enough clamping pressure for pva glue, especially on a mostly end grain joint.

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Old 03-10-2019, 07:17 PM   #5
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Re: Best Glue?


this was the glue I had
would the couple drops of ca glue I did on the second one be enough pressure?

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Old 03-10-2019, 07:18 PM   #6
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Re: Best Glue?


this was the ca glue only
got a little to much on and it came out on the top

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Old 03-10-2019, 07:19 PM   #7
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Re: Best Glue?


two drops of ca plus wood glue

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Old 03-10-2019, 07:20 PM   #8
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Re: Best Glue?


wood glue only

all had a bout 4 pins per side

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Old 03-10-2019, 07:25 PM   #9
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Re: Best Glue?


Throw the Gorilla glue away. Get Titebond one or two. Stay away from three.
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Old 03-10-2019, 07:27 PM   #10
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Re: Best Glue?


I've switched to TBII from 2p-10. Seems to hold up better, especially against shocks.

I have a lot of corner clamps, so I usually just assemble everything one day and install the next. Maybe do two batches in one day, but just remove the clamps to assemble more, I don't actually install the first batch until the next day.

Despite all that, I typically biscuit everything with enough meat.
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Old 03-10-2019, 07:27 PM   #11
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Re: Best Glue?


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Throw the Gorilla glue away. Get Titebond one or two. Stay away from three.
Does it have less strength as a trade-off for water resistance? Of course it's also more expensive.
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Old 03-10-2019, 07:35 PM   #12
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Re: Best Glue?


Suppose to be water proof. But all I usually hear about it is failures. I have stuff outside that I've glued up with TBII for decades.
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Old 03-10-2019, 07:38 PM   #13
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Re: Best Glue?


I was reading that the tbII held up better because the ca was supposed to be brittle
some said to use the two drops of ca glue to act as a clamp until the wood glue dries

I was expecting the ca with wood glue to be the best of both world, not waiting for clamp/dry time

I'll get some tbII and try the test again tomorrow to see if I get different results

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Old 03-10-2019, 07:40 PM   #14
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Re: Best Glue?


Quote:
Originally Posted by Golden view View Post
I've switched to TBII from 2p-10. Seems to hold up better, especially against shocks.

I have a lot of corner clamps, so I usually just assemble everything one day and install the next. Maybe do two batches in one day, but just remove the clamps to assemble more, I don't actually install the first batch until the next day.

Despite all that, I typically biscuit everything with enough meat.
I use the 2P-10 as a clamp for the TBII. I've done door trim this way. Bring a couple of pcs of prefinished plywood as work surfaces. A single or double biscuit depending on the width of the trim. TBII in the biscuit and along most of the seen edges and a medium size drop at each corner. Press them together for 10 seconds, do the other side and gently lift it to lean against the wall. Do the rest the same way and then when you're done go to the first and start installing. As strong as using those corner clamps and no holes. Great for stained trim.

All the CA is a clamp for the yellow glue.
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Old 03-10-2019, 07:42 PM   #15
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Re: Best Glue?


Quote:
Originally Posted by Donohue Const View Post
I was reading that the tbII held up better because the ca was supposed to be brittle
some said to use the two drops of ca glue to act as a clamp until the wood glue dries

I was expecting the ca with wood glue to be the best of both world, not waiting for clamp/dry time

I'll get some tbII and try the test again tomorrow to see if I get different results

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Make sure the 2P-10 and TBII don't mix. It'll kill the 2P-10 and it won't dry.
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Old 03-10-2019, 07:50 PM   #16
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Re: Best Glue?


what would you do on a outside miter for a chair rail like this?

just clamp and wood glue?

you cant get a biscuit in it, can you?



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Old 03-10-2019, 07:56 PM   #17
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Re: Best Glue?


TBII and collins clamps
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Old 03-10-2019, 08:02 PM   #18
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Re: Best Glue?


Quote:
Originally Posted by Donohue Const View Post
what would you do on a outside miter for a chair rail like this?

just clamp and wood glue?

you cant get a biscuit in it, can you?



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CA with TBII
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Old 03-11-2019, 10:40 AM   #19
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Re: Best Glue?


I'd lose the bottle of gorilla glue....
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Old 03-11-2019, 11:12 AM   #20
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Re: Best Glue?


Is gorrila wood glue any different from any other PVA glue?

I'm thinking the only reason CA glue worked better is due to lack of clamping pressure.

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