Pen Turning Glue problem

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Forum topic by TechTeacher04 posted 06-08-2015 02:25 PM 872 views 0 times favorited 6 replies Add to Favorites Watch
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383 posts in 1529 days

06-08-2015 02:25 PM

Topic tags/keywords: question lathe

I have had mixed results using CA glue with activator for gluing the brass tubes to the wood blanks. I am using 2 part epoxy this time around and am having students getting separation while turning. Any suggestions? I am mixing all the epoxy and apply to ensure full coverage and 1:1 ratios of resin and hardener. Thank you

6 replies so far

View DrDirt's profile


4424 posts in 3740 days

#1 posted 06-08-2015 02:41 PM

I had trouble with CA loosening, as it seemed the CA was too brittle?

I went to gluing with 5 minute epoxy… still important that you rough up the surface of teh brass, as the epoxy is purely mechanically bonded to the brass, otherwise it will just pop off like glue does from packing tape or the bottom of the plastic dixie cup I use for mixing.

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

View gwilki's profile


200 posts in 1471 days

#2 posted 06-08-2015 08:25 PM

I use only 5 minute epoxy on pen tubes. I have found that roughing the tubes is not mandatory, but wiping the tubes with lacquer thinner or some other degreaser is. The tubes have a film on them that epoxy will not stick to. Also, 5 minute epoxy is not fully set in anything close to 5 minutes. If you can, let the glue ups set overnight. Finally, heat it the enemy. Instruct your students to keep them tools very sharp and take light cuts. And, another finally, watch the heat generated by sanding. By the time you are sanding, you don’t have much wood between the glue and the tube. It’s very easy to heat the glue until it fails.

-- Grant Wilkinson, Ottawa ON

View Bill7255's profile


427 posts in 2282 days

#3 posted 06-09-2015 12:37 AM

+1 on what grant said. I just use the 5 minute epoxy.

-- Bill R

View Woodmaster1's profile


957 posts in 2584 days

#4 posted 06-09-2015 02:43 AM

I have been using gorilla glue with good results. I sand the tubes before gluing.

View gwilki's profile


200 posts in 1471 days

#5 posted 06-09-2015 08:00 PM

It may be obvious, but to fix a couple of typos, I should have typed “heat is the enemy”, and “instruct your students to keep their tools very sharp”

-- Grant Wilkinson, Ottawa ON

View TheDane's profile (online now)


5423 posts in 3660 days

#6 posted 06-14-2015 01:01 PM

Rough the tubes with sandpaper, use Gorilla glue and let it cure overnight.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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