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Posted

Greetings Woodfolas,

I've got a drum shell that appears to have been exposed to water, which has caused the plies to separate.  I plan to repair this with glue and clamps.

The problem is getting the glue where it's needed, since the separation at it's narrowest is less than half a credit card's thickness.  The solution seems to be syringes.  However, I am totally unfamiliar with syringes, so I'm her seeking your advice.

PXL_20250131_190405642.thumb.jpg.555513fce63507a6433308ccfd71d314.jpg

What is the smallest practical size available and what type of glue would be best suited for this?  I keep a good variety of glues handy and know that hide glue, for example, becomes much less viscous when warmed.

How are syringes measured, for that matter?

Where can I get them?

Please share anything you think a novice should know, but wouldn't think to ask.

Thanks for your help.

 

Posted

I would consider just flooding thin CA glue into the crack and clamping. PVA or hide glue will be extremely difficult to force through a needle smaller that the type used to inject marinades into cooked meat.

There are some thin epoxies that might work. If the delamination is open from side to side, you can probably lay a bead of whatever glue on one side, and pull a vacuum from the other side witb a shop vac. I've even seen dental threaded through and used to drag glue into such tight spaces.

  • Like 2
Posted
On 1/31/2025 at 8:33 PM, legenddc said:

Look at Starbond CA glue. They sell it with a super small precision tip that might work for you. 

That was my first thought as well. A thin CA glue that they have will wick into it really well.

  • Like 2
Posted
On 1/31/2025 at 6:33 PM, legenddc said:

Look at Starbond CA glue. They sell it with a super small precision tip that might work for you. 

Thanks Chris,

The thing is that the separation extends well beyond the bearing edge, so I'm going to need plenty of working time to get the glue everywhere it's needed, and then apply the clamps.

Posted
On 1/31/2025 at 6:35 PM, wtnhighlander said:

I would consider just flooding thin CA glue into the crack and clamping. PVA or hide glue will be extremely difficult to force through a needle smaller that the type used to inject marinades into cooked meat.

I should probably have spelled out that I was asking about glue syringes.  I think I would be able to force the glue well into the shell beyond the opening at the bearing edge with one of these.

Posted
On 1/31/2025 at 7:08 PM, fcschoenthal said:

That was my first thought as well. A thin CA glue that they have will wick into it really well.

I actually use something like that with a similar applicator as that offered by Starbond.  Goes by the name of Tite Chairs with a very low viscosity and it works absolute wonders on hairline cracks that don't need clamping.

I'm dealing with a couple of sizable areas that will need clamping.PXL_20250131_184702301.thumb.jpg.15e9e394a07f9b35bba2eeee89e11a8f.jpg

  • Like 1
Posted

I believe there are some CA glues that have longer open times.  In addition to Starbond, you might see what GluBoost has to offer.  Or consult with Rockler or Woodcraft.

Posted
1 hour ago, B1rdhunter said:

I inject titebond 3 all the time with a medical syringe and 18 guage needle,

 

Where do you source your medical syringes and needles?

  • 3 weeks later...

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