If you have ever wondered what is resin gel time, I can tell you that it’s not about making jelly. The gel time of resin is one step during the curing process, but it’s a crucial one.
Why is resin gel time important?
Let’s say you are creating resin projects in layers and want to minimize the lines or seams between layers. You want to apply the next layer of resin while the previous layer is in the resin gel phase. While you can let your resin completely cure, then add another layer of resin, you’re going to see a line between layers.
When does the gel time of resin happen?
Hold up, partner. Before we talk gel time, we first need to talk about a resin’s pot time. This is the amount of time you have to use the resin mixture once you mix it with hardener. This time varies from resin to resin. You should find it with your resin kit instructions. Gel time should occur shortly (relatively speaking) after a resin’s pot time expires.
For example, the Resin Obsession super clear resin‘s pot time is 20 to 25 minutes. Its gel time occurs between 30 and 40 minutes after mixing. Once again, though, resin gel time varies from resin to resin.
What does resin in the gel time look like?
Once you mix your resin and hardener, you should notice a gradual thickening of the resin. There will come the point where the resin is very thick and very slowly returns to its expected shape when disturbed. When the resin is thick and doesn’t flatten out again, this is a resin’s gel phase. Towards the end of the gel phase, the resin will become stringy when trying to stir it. Eventually, the resin mass will solidify and harden.
When a resin is in gel time, you will notice it feels warm, especially if you have it in a thick pour. This warmth is typical and is what helps the resin to cure. Don’t disturb your resin project once it enters the gel phase. You can introduce bubbles that are difficult, if not impossible, to remove at this point.
What should you know if you are going to apply another layer of resin to one that’s in the gel time?
The heat is additive. The heat from your first layer is going to combine with the heat of your new layer. You need to be aware of how hot your resin could get so that it doesn’t overheat and cure too quickly.
What’s the best way to know what is the gel time of resin?
The more you work with a particular formula of epoxy, the more you’re going to find out exactly how it behaves. Take plenty of notes detailing how you used it along with its pot time. That will give you a starting point to know when a resin’s gel time can happen.
When creating your resin project, keep some mixed resin in your cup. You can check the resin in the cups to see if it’s in the gel phase without disturbing the epoxy resin you poured.
Have more questions about resin gel time? Let me show you how the Resin Obsession super clear resin changes from fluid to a solid through the end of its gel time.
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