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I painted some Jenga blocks and gave them a clear coat in Mod Podge to seal the paint. The Mod Podge coat is still sticky after a few days, which is definitely not good for Jenga blocks. How can I make the blocks not sticky?
UPDATE
Unfortunately after more than a month of curing, my blocks still stick together! What are my options?
Mod Podge takes a very long time to cure; around four weeks, depending on humidity and coat thickness.
To properly use Mod Podge, you need to apply multiple thin layers (not thick ones), allowing them to dry completely between each coat. According to Meaningful Mama,
If you don’t let [the Mod Podge] dry completely between coats, your project can end up more sticky and may bubble a bit.
"Dry" is not "cured," however; while it will only take an hour or so (again, depending on humidity) for each coat to dry, you need to leave the pieces alone for roughly a month to become fully cured and hardened. Once fully cured, the Mod Podge will be a durable coating resistant to damage, but during the cure time, it will remain soft and susceptible to damage, including shifting and peeling.
Just to supplement the good answer by Allison C, there is a wide variety of Mod Podges with different characteristics (see descriptions on this blog). Certain ones are more prone to be sticky than others, especially if there is high humidity.
If thin coats and long curing still don't solve the problem, one solution is to try a different Mod Podge product that may be less prone to stickiness (see linked blog). Another solution is to give the item time for the Mod Podge to dry and cure, then spray it with several light coats of a clear acrylic sealer.
This might seem or sound a little silly, but I always do this, and have done it for bigger projects as well (like when I made a speaker out of cardboard).
I wanted a nice coating so I used a little bit too much mod podge (and too little water), so well...
The solution basically is: get dust, sand, or any other very smooth and light powder (you can also try any dry color powders, as they could even give texture to your blocks). Get it to the finest stage (blend it if it is coarse or has granules and such). Use a sieve to filter out crude leftovers, collect it in a paper, or something similar, and just plainly blow it across the blocks (do so with every single one).
Sandpaper helps a lot actually! As long as you don’t mind a few scuff marks, the sandpaper gets rid of almost all of the stickiness. I painted my Switch controllers the other day and hated the stick, but I used some sandpaper, and with a few scuff marks on the back, they're good and smooth now!
