By far the easiest way to tighten loose chair rungs is with the application of a liquid joint tightener.
Dr Woodwell Solutions makes a product called "JoinTite" for this purpose. It is not yet on the market so I will suggest you look for a product called "Chair-Loc". If you can't find it, let me know and I will send you some JoinTite. Below are the instructions for use.
The instructions for the use of JoinTite are as follows:
-Apply to loose joint.
Considerations:
-One of the joining materials must be wood.
-Wiggle the joint during application to promote penetration.
-If the joint is too tight to allow seepage, drill a small hole beside the joint at an angle to intersect the base of the joint.
-If the joint is extremely sloppy, wrap a piece of cloth around the male portion of the joint and fit before applying JoinTite.
-Assure that the attitude of your repair is correct and leave to set for 12 hours.
-2 oz. is sufficient product to repair 10 to 20 loose joints.
How long does it take to set?
2-3 hours
How long does it take to cure?
12 to 24 hours
Will it work on splintered cracks on pieces that are broken into two?
Not unless they are in a joint. (A split dowel)
Will it fuse two flat pieces together, as opposed to working only with male and female parts?
No
Will the droppings and spillage damage wood surfaces?
No
What is the best way to clean up the droppings and spillage?
It is water-soluble but we use Wood Elixir for clean up to protect the finish from water damage.
Is the correct way to use JoinTite to "flood" in as much of the concoction as possible to create maximum swelling?
Even though a small amount might do the job, you cannot overdose with JoinTite.
If an insufficient amount does not do the job the first time, can more JoinTite be used in the same joint a second time?
Yes. It will reactivate the first application.
