How Can I Make Epoxy Resin Dry Faster?Posted on 16 Sep 12:18
💡TIP: Be aware to keep temperature constant for the first 24 hours of curing. If there is a temperature drop, you can end up with things like dimples or an orange peel effect in the cured resin.
So - say you have a big show tomorrow and you waited till today to pour your resin. Now you need it to cure ASAP so your artwork can be hung on time!
...What do you do?
Here are some tips on WHAT TO DO and what NOT to do to get ArtResin to cure more quickly.
✅ Increase the temperature to 75-85ºF / 24-30ºC in the room where your piece is curing. Cure time is affected by temperature: warmer temperatures facilitate curing and colder temperatures slow curing.
✅ Place a space heater or heat lamp near your curing piece.
✘ Don't add more hardener to the mixture thinking this will increase cure
time - it won't. It will simply throw off the delicate 1:1 mixing ratio, causing
your resin to not cure at all and remain sticky indefinitely.
✘ Don't replace the ArtResin hardener with another brand of hardener that
advertises a quicker cure time. Every paired resin and hardener within a kit
work together as a system and cannot be reliably interchanged.
✘ Don't add any extra agents to the mixture with the intention of promoting a
quicker cure. ArtResin is not designed to accommodate any such additions.
Factors Affecting Cure Time
Cure time is one priority of many in the formulation of epoxy resin. When we formulated ArtResin, we first prioritized exceptional protection for long-term yellowing protection ( as well as non-toxic safety for the user ) and in order to achieve this, we had to cut down on the additive that promotes curing ( called the accelerator ). Accelerators are typically yellow in color, so too much accelerator makes for a yellow looking product rather than a water-clear one, such as we offer.
Also, the faster resin cures the greater chance it has of yellowing as a side effect of a quick cure time. Heat is a by-product of the chemical reaction that causes resin to cure, so if it cures too fast ( like, for example, in quick-set tubes of epoxy adhesive ), the heat will have turned the epoxy yellow by the time it's done curing.
For coating artwork and creative projects, clarity is non-negotiable but a few extra hours of cure time doesn't usually hurt.
ArtResin reaches 95% of its full cure within 24 hours, and 100% of its cure within 72 hours. After the 24 hour mark, a piece can be moved from its curing position, hung on a wall, and it can have a second coat applied if necessary. The difference in hardness between the 24 hour and 72 mark is typically only an important factor for artists wanting to pack and ship their work, or if they're making coasters, bar tops, or other heavy duty projects which require a less flexible cure. For coated paintings, drawings, mixed media pieces, and sculpture for example, the marginal difference in hardness from day one to day three is typically negligible.