How To Make Sea Glass With Resin

green sea glass necklace with the caption how to make sea glass

When I was younger, I remember that one of my favorite things to do at the beach was to find sea glass. If you aren’t familiar with sea glass, it’s the remains of broken bottles and glass jars that make their way into the ocean. After weeks to months of tumbling in the water and sand, they come back to shore with a beautiful and evenly frosted finish. I remember collecting jars of the stuff!

If you don’t have a beach nearby, making sea glass at home is easy. Today, I’m going to show you how to make sea glass yourself with resin!

You’ll need:


Spray the mold with the Castin’ Craft mold release and conditioner, and leave it to dry for a couple of hours.

spraying a mold release and conditioner spray on a circular resin mold


Measure your resin into a mixing cup according to the directions. Mix well and leave it to stand for a couple of minutes.

If you haven’t done this before, you can learn how to mix resin and hardener in five easy steps.

plastic spoon mixing resin in clear plastic cup


Drop a small amount of transparent pigment into the mix until it’s the color you want. Add just a pinch of white glitter and mix well – this is the secret to the realism!

If you’re new to resin dyeing, then read this guide to learn how. To make sea glass resin a convincing color, search images of sea glass and keep it nearby as a reference image.

making sea glass coloring by adding sea green pigment dye to resin


Pour the mixture into the mold until half-full and leave to partially set. I left mine inside of a hot box under a light bulb to speed up curing, but you can let it set in a normal environment. This guide explains the temperature at which you should mix your resin.

This mold is best for making sea glass because it gives you nicely sized pieces to work with.

pouring sea green resin into circular molds


The resin is ready to be manipulated when the surface is no longer wet, but the mixture is still very soft when pushing on the underside of the mold. Keep an eye on the curing as different room temperatures and situations change the speed that it takes to get to this stage.

Pull the resin out of the mold with a blunt object (you can use a resin stirring stick so as not to damage your mold). Any extra bits left inside can be picked off once fully cured.

scraping sea glass resin out of mold


Here’s the core step of how to make sea glass from resin that looks like real sea glass. Tear the resin into pieces to make sea glass for small jewelry or crafts. For a decent-sized pendant, leave the blob whole. Shape the resin roughly with your hands and put on a non-stick mat.

Don’t worry about fingerprints; this will slightly frost the surface, which is a good thing for realism. Most of the fingerprints will be lost once the resin has fully cured, and it does smooth out a bit more after this stage.

hand holding dried piece of sea glass resin


Use a rolling pin to lightly squish the piece on the drying mat into a flatter shape to mimic the thickness of old glass.

Note: Once food items are used for resin, they should not be used for food again.

how to make sea glass resin with a rolling pin


Leave the resin to set in a cool environment for at least 4-5 hours. Then you are free to drill the resin charms and do as you wish with your faux sea glass!

completed making sea glass with resin process

Ready to learn how to make sea glass resin jewelry, but you’re nervous to get started? I get it. Who wants to spend an afternoon making something only to find it’s something you wouldn’t show anyone!

That’s why I wrote the PDF ebook Resin Jewelry Making. I help beginners get started with the simple — but essential — steps they need to make something that they can’t wait to show off. Buy now and it’ll arrive in your inbox in minutes!

Unpublished Blog Posts of Resin Obsession, LLC © 2021 Resin Obsession, LLC

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19 thoughts on “How To Make Sea Glass With Resin

  1. This is really cool. I’m been seeing a lot of designs made with sea glass lately, but I have yet to find any. Thank you for sharing your tutorial.
    Linda @

  2. I love your work!I saw this ring and know that they use resin. Now i wonder how they did this. Can you explain that to me? The hardest thing is that the resin is on the outside of the ring.I hope to hear from you. By the way, sorry for my Englisch, a’m dutch 😉

  3. @Ellen,
    Unfortunately, it’s hard for me to know how this was done without seeing the original ring.

  4. Katherine,
    I’d love to try this but I’d be using a different brand of epoxy resin, which is what I have at this time. Should I assume the instructions would be the same? The one place I’m getting a bit stuck on understanding is when you say “The resin is ready to be manipulated when the surface is no longer wet, but the mixture is still very soft when pushing on the underside of the mold.” I’m still pretty new to all this – do you mean when the surface is not sticky to the touch? I appreciate all your information! Thanks!

    1. Yes, you got it! This technique will work with a different brand of resin, although the time that it’s rubbery will be different than what is talked about here.

  5. This looks really neat. Instructions say specific amounts but does not give amounts. Can you help me in that area?

  6. I sent an email on your forum – but I’m using a complex mold ( mermaid with detail hair and face). I want a sea glass look. For a silicon mold do I need a releasing agent

  7. @Ellen
    I was reading up on making seagrass & saw your post from 2014! My response is off subject, but at the end, you apologize for you English, as you are Dutch. (Lucky You! I’ve always wanted to explore your area of our world since I was little!)so this comment made me laugh a bit….a lot, bc your msg was perfect English. If you read other comments on most sites, esp news, you’ll notice immediately that we Americans are the worst when it comes to our own native tongue! It’s embarrassing! English & grammar no longer taught in schools for past ~15yrs! No wonder the rest of the world laugh & think we are a bunch of uneducated, ignorant bunch of people. Sadly, that is a fact for way too many Americans. Students aren’t even expected to ‘read a book’ during schooling! A Book!! I could go on & on, I won’t but thought it would be fun to write to you!!
    Happy Day to You!
    Sally S. Hale•Louisville, Kentucky. ,

  8. Sally, I am not sure where you live here in the states but most schools still teach grammar and English. All my kids from grades k-9th are made to read chapter books every quarter. I know this has nothing to do with making sea glass (which I will one day) but it blew my mind when you wrote this. My kids are even still taught cursive which was taken out of the school system. But most teachers know the importance of it and still do teach it. So sad to hear where you come from this isn’t an option.

  9. It would be so helpful if there was a “print “ option for the project instructions. Forgive me if there is one that I don’t see.

  10. Don’t call it sea glass if there is no glass… “faux sea glass” if you must have the clickbait keywords sea glass.

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