How to fix sticky resin – What do I do with sticky resin?

How to fix sticky resinIf you find yourself in situation where you have sticky resin, don’t worry, you can fix it.  Here are some ways on how to fix sticky resin.

Scenario 1: The cured resin is sticky on the surface like tape.

Option 1. Recoat with another layer of freshly mixed resin and hardener.

If your resin surface is simply sticky in a few spots, you can recoat with another layer of mixed resin.  The sticky resin likely happened because you didn’t mix the resin and hardener thoroughly the first time, so be sure to pay extra attention to mixing it well this time.  You may need to build a tape dam around your piece in the case of recoating a flat surface or be prepared to handle drips over the edge. This video shows how to apply a second layer of doming resin to a resin charm.

Pro tip:  While you can apply freshly mixed resin to only the sticky spots, you will see a seam line between the old layer and the new layer.  For the best-looking results, you should recoat the entire surface. 

Option 2.  Sand off the sticky resin.

If the entire surface is sticky, you can try sanding it off.  I do this when making polyester resin pendants.   The surface of polyester resin that is exposed to air during curing will remain tacky even though the rest of the pendant is fully cured.  After sanding with several grits of wet/dry sandpaper, you will be down to a solid surface that you can finish as desired.

Option 3. Seal with a sealer spray.

Use an acrylic-based spray or resin gloss sealer spray to seal off the sticky areas.  Use in light coats.

Scenario 2: The cured resin is gooey.

Unfortunately, you may find yourself asking, ‘How do I fix gooey resin?’

If you find your resin is gooey, meaning that it’s not liquid and it’s not solid, but something like a sticky blob, I’m afraid I don’t have good news for you.  You are going to have to find a way to scrape off or scrape out the gooey resin before recoating with new resin.  Here are the five steps you need to take to fix gooey resin:

1.  Start by scraping out as much of the gooey resin as you can.

Exercise caution if using heat and solvents to remove the gooey resin. It may produce unsafe fumes.

2. If after removing the sticky resin, your resin art or charms are uneven, e.g. large craters or cracks are present, you will have to mix new resin and use it to fill the voids.

Think of it like spackling and use it to fill in gaps.  Allow to cure before moving on to the next step.

3. Sand the surface as necessary to get it even again.

This article explains how:  How to sand resin.  All the gooey resin must be gone at this point because gooey resin does not sand well.

4. Wipe clean with denatured alcohol to remove any resin dust.

5. Recoat with a new batch of freshly mixed resin.

As tempting as it may be to recoat without removing the uncured resin, don’t!  This resin could leak out later making a huge mess.

Ready to get to resin expert status?  Buy a copy of Resin Fundamentals.  It’s the perfect book for beginners to get to resin pro status in an afternoon!

Unpublished Blog Posts of Resin Obsession, LLC © 2020 Resin Obsession, LLC

Like this post? You may be interested in  10 reasons why your resin casting is a disaster and how to avoid them

28 thoughts on “How to fix sticky resin – What do I do with sticky resin?

  1. I made a light switch plate with polyester resin which unfortunately turned out very sticky and gooey on the unexposed side, even after 3 days. So I flipped it right side up out of the mold and left it in the sun all day. Problem solved! Now I know what to do next time this happens. Leave it in the mold and just let it sit in the sun.

    1. i’m trying this as we speak with earrings I’ve turned on a lathe. The funny thing is I dipped 6 pairs 4 dried perfect while 2 pair are still sticky after 2 days, so I put them in the sun. I hope it works

  2. samuel p belott Did leaving them in the sun work for you?? I have a frame that I poured a few months ago and one of the corners is still tacky. It’s not gooey but sticky like tape. I really am hesitant to try sanding it out because it is decorated with beach glass and shells and old jewelry. So it’s not an even surface underneath! Thanks for any help or suggestions!!

  3. Hello! Im doing coasters and love making them , but they all get stuck to the glass ? How can i avoid this from happening?
    Im selling them and feel ashamed when they tell me this happens to them🙈🥺

  4. Hi, I want to paint a design on a tray. I was thinking of using satin paint as a base colour then acrylic paints for the design before using resin to coat it. Do you think this would work please. I’m new to resin. Many thanks Lynn

  5. I made a set of geode coasters. They are sticky and bendy. Help! I mixed properly, and measured properly because I did something else with some of the resin I had left over. What can I do with them?

    1. Hi Tonya, it may be the resin you are using. In that case, there is nothing you can do to make them less bendy. Perhaps you can put a firm backing on them?

  6. I tried casting dice with silicon molds I made myself and the first attempt came out sticky, and the leftover resin I left to dry in a silicon mixing cup was sticky along the corners. I thought it was the mixing ratio to I popped them out, washed the molds and tried again, but again the dice are sticky and this time the leftover resin in the cup was completely hardened?? Both were in the same area to dry.

  7. hi i am new to resin, i have mixed on several occasions a batch of resin, measuring never judging. But every time the resin is either soft on some molds and sets in others. I have now purchased a new resin and exactly the same thing is happening. I live in Spain so the room is warm. I wondered if it is glitter or colours i am mixing in, I have looked into guide lines for measurements etc. Please help as spent a lot of money trying to get this to work and enjoy doing it, and want to sell some of my work.
    Could you also recommend a really good resin to use, i am now trying Resin pro
    Thank you

    1. Hi Jan, I’m sorry this is happening to you. Have you connected with the manufacturer for help? While we have resins in our store that would definitely work better for you, I’m afraid we cannot ship them to you in Spain.

    2. I’ve learned that if you’re using a heavy amount of alcohol ink for color then your piece/product might be soft (flexible) and take a little longer to cure or firm up. This too was a concern for me in the beginning and now I try to achieve the colors I desire with the least amount of ink drops inside. If I find I need a hefty amount of ink for coloring an item I know ahead it’s going to take longer than normal to firm up. I hope that helps to know. I know I was distressed about it initially.

  8. I’m having two different issues. The stickiness has been covered (thank you!), but my biggest problem is resin pour is causing paint to run. I am using acrylic paint on glass jars (pieces). The painting process usually runs approximately 1-2 months with several oven-drying times throughout. Just before completing with the resin, I bake the glass once more and cool 1-5 days. The resin runs are not throughout or uniform, just random spots. Thoughts?

  9. I just finished a resin sculpture and I’m having a problem with stickiness on one of the sides. I never had this problem with resin before, however it is my first sculpture. I read your suggestions regarding removing the sticky resin but there are beads and stones . Any other possible solutions?
    Thanks

  10. Perhaps after reading your wonderful blogs I should have bought resin from you,but wonder if you can answer a query. I have been sent 2 litres of epoxy resin but only 2 small bottles of hardener. No help from the manufacturer. Hard to understand why mix 1 to 1. Can you help please. ..?

    1. Hi Valerie, unfortunately, resin mixing ratios is not something I can guess at. My best advice is to continue to get in touch with the manufacturer for their specific directions.

  11. So I’m new to this all, but I was trying to make some key chains for friends but my resin was not curing at all, it was straight up goop. Im guessing I didn’t mix it well so I scratched the Keychain, but im having a really hard time cleaning the molds out. Do you guys have any suggestions on how to get sticky resin out without having to throw the molds out?

  12. Hi,I have made ceramic tile coasters with acrylic paint.I resin them,put I find they are sticky,project wad 2 myths ago.I baked coasters in stove for 7min.@200.Then put in the sun for 24 hrs.They are not sticky anymore but are still sticking to hot & cold glasses.Will the resin finish spray fix this problem?

  13. Hey there
    I’ve recently purchased a container of polyester resin and ofc I’m very clueless 😔
    So I thought it was the same as epoxy resin but no it isn’t lol
    So I wanted to know what do I need to cover my molds with while it’s curing so it doesn’t become sticky, how do I remove the smell from the product once it’s cured, and what can I use to mix the peoduct cause everything seems to be burning through the resin

    Thank you so much

  14. On #5 do you have examples where the resin has “leaked”.. I have a project that I am not sure what is going on.

    1. Unfortunately, I don’t. Basically, if the resin is semi-solid, you need to remove that material before applying another layer of resin.

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