[Solomon]

I had the same issue (I think) I had a bunch of tiny bubbles (maybe less than 1/8 of a millimeter each in diameter of the bubble) in my cured resin that appear to be randomly scattered at different levels throughout the resin layer. I would usually sand it down and repair but these microscopic bubbles look to be as deep as the very bottom of the bottom of the pour. (I do layered paintings with epoxy resin) Ive used a butane torch after pouring and it looks to be completely clear and I also covered the piece as well for curing. Maybe it is particles left from sanding the prior layer?

[Katherine Swift]

Hi Jade,

I’m sorry to hear your resin isn’t curing. At this point, it is unlikely to cure. We have a troubleshooting article here that may help you pinpoint the cause of the problem. https://resinobsession.com/resin-frequently-asked-questions/resin-troubleshooting-tips

In the meantime, if your resin is gooey, there is no way to save it. You will need to scrape out of or off your project and start over. If it’s only sticky in a couple of spots, you can recoat with another layer of resin and do okay.

[Katherine Swift]

Hi Wesla,

I’m guessing you are trying to add the next layer before the first layer cures so you don’t see a line? For that, twenty to thirty minutes (depending on how fast it appears to be curing) works best.

[Katherine Swift]

Hi Matthew,

I’m sorry to hear about your bad luck with the resin. I’m afraid at this point, putting it in the oven won’t do anything to make it cure. If you want to try again, having your room temperature in the low 70’s F is ideal for resin curing.

[Katherine Swift]

Hi Chris,

I’m afraid all resins are going to shrink after curing. Your best bet is to overpour by the amount of the shrink, knowing it will pull back once it cures/cools.

[Katherine Swift]

The Killz should be okay, but I wouldn’t use a deck stain. Those may contain oil which could affect the resin curing.

[Katherine Swift]

Hi Kris,

I am not aware of silicone molding material that won’t work with epoxy resin. Some polyurethane molding materials may stick to epoxy. Alginate molds may cause a problem as they tend to retain moisture which can effect epoxy curing.

Would your mold maker be using either of those products?

[Katherine Swift]

Hi Kelsey,

What a nice idea, but I’m afraid resin isn’t going to work well for this. Resin hates moisture, so assuming you could catch the snowflake in the resin, it could affect curing. Even more complicating, resin heats up so it would melt the snowflake before it ever had a chance to cure in resin. 🙁

[Katherine Swift]

Hi Rita,

I have not done anything like this, but here is how I would approach it.

It looks like the surface shown in the picture would have been the surface touching the petri dish. i.e. think about this while it is ‘flipped over’

The colors are not blending with the resin at all which makes me think they are oil based. Too thick and they wouldn’t flow, but if they had a water or solvent base, I would expect them to blend into the surrounding resin more.

I would try putting down a clear layer of resin first, then dropping in the colorant and rotating the dish. Put more clear resin on in a layer, then add more color. I don’t know how these colorants effect curing. Sounds like something to try.

Is this helpful at all?

[Katherine Swift]

Hi Devin,

In a short answer, yes. Any two part clear epoxy resin should work for your purpose. There are a couple of caveats though.

If the acrylic is flexible enough, it may cause the resin to crack or pop off. If I were doing to do this, I wouldn’t want the acrylic to be able to move.

If the acrylic is thin, the heat from the resin curing may cause it to warp depending on how much you use.

Does this help at all?

[Katherine Swift]

Hi Bill,

You can put swirls in resin, but I don’t know that I would use paint to do that. Paints attract moisture which may keep the resin from curing. What you can do though, is use paint (or something else) to color extra resin, then use that colored resin to create the swirls. You can see what I’m talking about in these videos from our youtube channel:

https://www.youtube.com/watch?v=InsHyvO0lNE&t=134s
https://www.youtube.com/watch?v=-90Jpl_ZiPI

We have resin colorants in our shop that may work for you: https://shop.resinobsession.com/collections/colorants

[Katherine Swift]

Hi Kelly,

Low 70’s F is the best temperature for resin curing. You can warm your resin in a water bath before starting, which will help, but your room temperature is still going to be a problem.

Once your resin painting has cured to the soft cure point, yes, you can move it so it can continue curing for the full cure time.

This article might give you some ideas on things to try to bring up the temperature of your resin casting area: https://resinobsession.com/resin-resin-resin/resin-casting-in-cold-weather

[Katherine Swift]

Hi Ron,

In a short answer, yes, you can do this. Solvents like acetone and alcohol will thin resin once it’s mixed. Be sure to add no more than 1 part solvent to 10 parts mixed resin as it may inhibit curing. The problem with doing this though, is that the thinner you make the resin, the less likely it wants to stay on the surface of something. Think about the consistency of honey as it compares to vinegar. Honey is thicker and will coat something well, whereas the vinegar is thin consistency and won’t want to stay on the surface of something. If your surface is flat, you can likely get away with thinning the resin and having it stay on the surface, but if your surface has any curve to it, thinning will allow the resin to pull off and leave voids.

[Katherine Swift]

Hi Sylvia,

It has been my experience that 75% of the time when resin cures sticky or didn’t cure all the way, it is either from inaccurate measuring or incomplete mixing. We have a few other suggestions on why your resin may be sticky in this article: https://resinobsession.com/resin-frequently-asked-questions/resin-troubleshooting-tips

If the surface of the resin is sticky (not gooey), then yes, you can apply another layer of resin to fix it.

You are also correct in that thinner layers of resin may have a harder time curing. That’s because the heat produced from the resin and hardener mixing together is sometimes not enough to cause it to cure when it is spread in a thin layer. Warm your resin ahead of time (here’s an article showing how to do that: https://resinobsession.com/resin-resin-resin/resin-casting-in-cold-weather) and make sure your room is in the low 70’s F to help with the curing.

[Katherine Swift]

Hmm. There a few troubleshooting items in this article that may help you: https://resinobsession.com/resin-frequently-asked-questions/resin-troubleshooting-tips

The other consideration is whatever you used to color that mix of resin is attracting moisture which is keeping your resin from curing.

If the area is simply sticky, you can recoat with a layer of clear resin. If it is gooey, you will need to scrape off as much as possible before recoating.