11 Useful Resin Casting Tricks To Make Things Easier

resin casting tricks
One of the snappy things about resin (besides using it to make a candy necklace) is that it works for people in different ways. So over time, many of us have learned resin casting tricks to make things easier. Here’s what a few of my favorite resin artists shared are their favorite resin casting tricks.

Trick 1: Heat gun

My favorite trick is using a heat gun or embossing tool to pop bubbles in resin. It has saved me with so many projects.

-Jasmine Moore, resinista blogger at Resin Obsession

Trick 2: Use contact adhesive

Got a sizeable open-backed bezel that packing tape won’t cover? Try using contact adhesive instead. It has a bit more stick than packing tape, so you might find that some sticky residue is left behind. Here are three ways to make light work of cleaning it off:

* Place the item in the freezer for half an hour. This can help the tape release more quickly, leaving behind less gummy residue;
* Gently rub it off with methylated spirits (denatured alcohol); or
* Spray it with WD-40 lubricant and gently rub it with the pad of your finger. Clean up with a paper towel to remove any greasiness before washing it clean.

-Mylene Hillam, jewelry artist and resin blogger, Mill Lane Studio

Trick 3: Precision tips

My favorite trick (albeit a costly extra step) is mixing a batch of resin and then pouring it into a bottle with a yorker cap. The cap gives me much more control in putting resin where I want it without dealing with drips and overpours when using a cup and stick.

yorker caps

-Carmi Cimicata, resin blogger and mixed media artist, I Love Resin

Trick 4:  Cookie cutters

Using texture tiles and cookie cutters with Silly Putty is fun because it can be so unique.

-Kate Ledum, resinista at Resin Obsession, mixed media crafter and artist, Rijacki Design

Trick 5:  Use powder

Baby powdering and warming the silicone rubber mold up before casting resin are by far my favorite tricks. The baby powder releases the surface tension of the silicone rubber, eliminating air bubbles, and the temperature helps the resin cure faster.

-Carol Wedlake, technical service, Alumilite

Trick 6:  Don’t waste it

I set up more molds and projects than I need, as I hate to waste resin. So sometimes I get a little extra pair of earrings or a ring with my leftover resin.

-Linda Carmichael, resin jewelry artist, owner Make Me Mold Me

Trick 7:  Clean up

Always have gel alcohol hand sanitizer and baby wipes when working with resin. It is the best stuff to help get resin off you or anything else you may accidentally get resin on. Easy trick but worth it.

-Ellen Anderson, resin artist, @EllenAndersonArt

resin on acrylic

Trick 8:  Pour out extra resin

Our favourite trick is saving excess resin mix on an acrylic sheet to chop up and use in other pieces later.

-Kate Battes, resin artist and UK resin supplier, Resin8 UK

Trick 9:  Get it warm

I think my best resin casting tricks is to warm it up, especially if you are in colder climates. Warm – not hot! It mixes better, and it keeps the bubbles down too.

-Mona Schmitt, resin and mixed media crafter, Craft Klatch

Trick 10:  How to scrape off cured epoxy

Here’s how you get spilled epoxy resin off your glass tabletop. First, place boiling water on an old towel or rag and place it over the epoxy. Then, wait a few minutes and use a putty knife or another flat tool to get up under the epoxy and pop it off gently. This works like a charm. It needs to be a hard surface that water will not damage.

-Marty Sanchez, technical service specialist, ETI


Trick 11:  Learn about soft cure time

Learn when the soft cure time of your resin happens. You can do much during this time should you have made a mistake. I found this out when I was doming resin and went back later to check my pieces. The resin was so syrupy that I couldn’t get the microbubbles to pop. So instead, I pushed them over the side of my piece. Once the resin had cured to where it was rubbery, I found out I could peel it right off! Now, when I drip resin over the sides of my bezels and such, I don’t panic. I set a timer to go back in so many hours and peel the resin off. Anytime I don’t have to sand off excess resin is a win.

-Katherine Swift, author, artist and creative director, Resin Obsession

Want to learn other resin casting tricks?

Then grab your copy of Resin Fundamentals.  It cuts through the noise of resin information out there and instead shares the vital details you need to know to make something unique with resin. Even if you’re a beginner.


Unpublished Blog Posts of Resin Obsession, LLC © 2023 Resin Obsession, LLC

Like this post? You may be interested in  You Can Have Your Cake And Resin Coloring Experiments, Too

33 thoughts on “11 Useful Resin Casting Tricks To Make Things Easier

    1. I have found out that when coloring resin with alcohol inks
      purples and violets and reds loose their color once mixed in
      the resin. When first mixed it looks beautiful , but 10 minutes later its clear. You had a video using India inks and had purples that kept their color. Is india inks the solution????
      What works best for coloring resin purples reds etc?

  1. I wish someone would post a tip about getting the resin really glossy and shiny. I’ve tried everything I’ve read on this site, plus other sites – Novus, spray, diamond glaze. Nothing does the job. I recently read about envirotex Lite, but you’re supposed to pour it. How would you pour it over a bracelet?

    1. Hi Tereze, if you want a high gloss finish on your pieces, I would suggest either using a polyurethane or polyester resin. Those will withstand the heat of a buffing wheel. You can achieve a high polish by using a cotton buff and buffing compound (I like to use Fabulustre.)

    2. I have found that if I let my resin sit about 25-30 minutes after mixing it (it thickens) and then use a paint brush to paint a layer over my pieces, they come out like glass. The thicker it is, the harder it can be to work with so don’t let it sit too long. I like mine not quite as thick as honey. Also keep in mind once it thickens it’s easier to make bubbles so keep a flame source handy. I use acetone nail polish remover to clean my brushes so I can re use them. Check out my Facebook page to see how mine turn out: Facebook.com/designsbyamyp

    3. You mix your Environtech and use a gloved finger to rub the pour resin on your project. Also works for shining dull resin projects as well.

  2. I can’t believe I can’t find any classes on mold making and resin casting in NYC. I am self taught but just need a workshop and some hands on training. At this point I am willing to travel. Any suggestions/tips would be greatly appreciated.

      1. It’s so weird. One studio told me they discontinued the resin classes as students were disappointed they had to wait for curing and didn’t have the instant gratification but I think that’s one of the cool things about it. De molding is like opening a present. Good luck with finding something.

    1. any chance you’re still advancing your resin-casting skills? i have a small project and i’m looking for someone to execute it. trying to float some broken pieces of glass in a resin cube approx 6x6x6″. thank you!

      1. hi, sorry for late reply. happy to help if I can. moving and traveling so need to get back to it now

  3. Has anyone tried to put human ashes in a project, and how does it come out? I was thinking of a clear necklace with a small picture of my father and his ashes in it…. Any suggestions?

    1. Unfortunately, this happens commonly when casting resin in molds. Because of surface tension, it wants to ride up the sides of a mold which leaves that edge.

  4. hey! with open back bezels, i have been laying them on packing tape which works great to keep them in place.. but when placed on tape i cannot use the heat torch to get rid of bubbles. a silicone mat works well to ensure the reisin doesn’t sick AND i can use heat torch. but they slide all over the place sometimes. any tips?!

  5. I put flowers in a silicone mold and poured the resin on it, once it cured it not clear. Is there something you can put on them to fix that?

  6. One great shirt that I’ve used is to take any kind of tape to clean up your molds and your silicone surface. Picks up hard and resin glitters and any kind of debris with a charm.

  7. White vinegar cleans up all resin messes. Just put vinegar on your paper towel and it wipes right off. If the resin is really thick it way need to set on it for a little bit. Wash your hands with vinegar and air dry. I always have vinegar handy because I can be a little clumsy at times.

  8. Thank you for the Vinegar trick. Recently, I heard that I should not clean resin off my hands with Alcohol (I wouldn’t use Acetone . . . ,) but I didn’t hear why. (I would appreciate any comment or reasoning why alcohol is not suitable, safe??) So I am going to try white vinegar.

      1. Hi. I made a cell phone charging stand and it bends after only a minute or two with the phone on it. It’s been a year, so I know it’s cured. Is there a resin that cures really hard?

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