I did a couple of resin pours in my house before the cold weather hit, and they went fine. Then, I did a couple more, when the temperature in my house was 69F. The resin (Industrial Grade) states that the “Ideal working temperature is 72-75F.” Neither of these pours (a couple of weeks apart) set, and remain sticky. Could three degrees have made that big of a difference? All pours were the same amount, and mixed in the same way. More important, is there any way to fix this?
Temperature is pretty important, but mostly that it doesn’t get too hot. Epoxy generates heat as it cures, so it will overheat and cure to fast if it’s hot (ask me how I know). If it’s colder, it may take longer to cure. The bigger the volume of epoxy, the more important temperature is.
Having it be sticky and not curing seems like some other problem. Maybe with the mixing? How long did you mix? Were the ratios accurate? How deep was the pour and what was the brand/type of epoxy?
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I mixed all four pours for four minutes, and all were 1/2" deep. I used the same technique to measure them 1:1. The volume isn’t huge, as it’s just an insert in the middle of a cheese board.
If you want to try a different epoxy, you can try some of mine. I have Liquid Glass Deep Pour 24hr. It’s getting towards it’s shelf life, so I’d probably not use it for anything critical.
Not sure how to fix…
Thanks, Al, but I have another deep pour resin. I may try to do a wood inlay on the CNC, first. This is just annoying. My practice pour came out great!