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Frequently asked questions about Epoxy

Epoxy has a wide range of applications. It is used for making art, jewelry, or casting coatings and floors . Last year we gained thousands of customers. You will find everything for your project at itsOkay. Take a look at our extensive and complete range of epoxy casting resin, epoxy pigment , silicone molds and tools .

Here we answer frequently asked questions regarding working with epoxy casting resin. Do you have a question that is not listed? Let us know.

1 - How much epoxy do you need?
2 - What is epoxy casting resin?
3 - Why is my epoxy not setting?
4 - "craters" appear in the epoxy
5 - Can the epoxy be thrown in the garbage?
6 - How to remove sharp epoxy edges?
7 - How long can I store epoxy ?
8 - Is epoxy dangerous?
9 - How do I clean silicone epoxy molds?
10 - The epoxy remains sticky
11 - How do I make gold edges or texts on epoxy?
12 - How do you prevent objects from 'swimming/floating'?
13 - Remove air bubbles
14 - What is the difference between UV Resin and epoxy casting resin?
15 - How do you get a deformed silicone mold back into shape?

        [1] How much epoxy do you need?

        Are you planning to start working with epoxy casting resin and do you want to buy epoxy casting resin? But do you have no idea exactly how much epoxy you need? We are happy to help you.

        For all relevant information, see the following article written by our epoxy experts:

        Article: How Much Epoxy Do You Need?

        [2] What is epoxy casting resin?

        Epoxy is a durable and extremely strong material. The material adheres well to various surfaces and can withstand a blow. Epoxy is easy to use, even for the do-it-yourselfer. You can use epoxy for coating, casting, laminating, furniture and resin art. In this article we teach you everything about epoxy casting resin, the different types and how you can get started yourself.

        For all relevant information, see the following article written by our epoxy experts:

        Article: Epoxy casting resin - Practical manual

        [3] Why is my epoxy not setting?

        If your epoxy does not harden (properly), this may be due to a number of causes.
        We have written a separate article about this. For all relevant information, see the following article written by our epoxy experts:

        Article: Why doesn't my epoxy harden - Causes & Solution

        [4] "Craters" appear in epoxy

        The cause of this is usually oiliness. This causes the epoxy to disappear in some places. The solution is to sand it again and, in particular, thoroughly degrease the bad spots. Then apply another layer of epoxy .

        [5] Can epoxy be thrown in the garbage?

        Epoxy resin can be thrown in the garbage once it has completely hardened. Uncured epoxy resin is a chemical product and must be disposed of with chemical waste.

        [6] How to remove sharp epoxy edges?

        If your work of art comes out of the silicone mold, there is a good chance that there are still rough, sharp or protruding edges on the jewelry. You can cut this away with fine scissors, pliers or an epoxy deburrer .
        Are there holes or imperfections in your creation? Then you can finish it with a thin layer of new epoxy.

        For all relevant information, see the following article written by our epoxy experts:

        Article: Removing sharp edges of epoxy

        [7] How long can I store epoxy ?

        Epoxy can be stored for at least 2 years, but in practice it is often much longer. Store the epoxy in a cool and dark place. The hardener can become more yellow over time. This does not affect the operation, but may be undesirable for transparent applications.

        [8] Is epoxy dangerous?

        Epoxy is relatively safe. However, it is important to take a number of safety measures . We recommend using face and skin protection when working with epoxy . Always use proper respiratory protection when sanding wood or epoxy ! If the skin does come into contact with epoxy , it is best not to use chemicals. Vinegar is the best way to remove uncured epoxy .

        Epoxy should be stored safely and kept out of the reach of children. Once hardened, e- poxy is completely harmless to humans, animals and plants. If health problems do arise, consult a doctor.

        For all relevant information, see the following article written by our epoxy experts:

        Article : Working safely with epoxy, what and how?

        [9] How do I clean the silicone molds?

        Silicone molds are easy to maintain. For all relevant information, see the following article written by our epoxy experts:

        Article: Maintenance of silicone molds

        You can easily remove small residues of epoxy , glitter or dust with tape. You stick this in the mold and the dirt comes right out. Does the mold remain dirty? Then you can clean them thoroughly with diluted vinegar, alcohol or acetone. Normally the molds do not need to be cleaned. Store the molds securely in plastic bags so that they do not become dirty.

        Uncured epoxy spills can be cleaned with vinegar. Removing hardened epoxy is a little more difficult: Heat the epoxy with a hair dryer to a maximum of 90 degrees until the epoxy softens again and remove as much as possible with a paint scraper or putty knife. Remove the remaining epoxy with sandpaper. Make sure there is sufficient ventilation when heating epoxy .

        [10] The epoxy remains sticky

        It can happen that a resin piece of jewelry is sticky after hardening . First, allow the resin to harden properly and do not remove it from the mold too quickly.

        Stickiness can be caused by the following:

        1. Do you use UV Resin ? In most cases you have removed it from the mold too quickly. The stickiness is because the epoxy has not yet hardened properly. Let the epoxy harden for a few extra minutes under the UV LED lamp or place it back in the sun for 30-60 minutes. Turn the jewelry occasionally. The stickiness will disappear automatically.
        2. Do you use pigments? There is then a chance that you are using too much pigment for epoxy . Always read the product packaging carefully. If you use too much, the mixture will no longer be in balance and will not harden properly.
        3. Do you use epoxy casting resin ? If you do not mix this epoxy for a long time and carefully, there is a chance that sticky spots will remain after curing in places where the resin and hardener have not come into contact with each other. Make sure you mix the resin and hardener very well for one minute; scrape the bottom and sides. If necessary, you can pour the mixed resin into a new measuring cup, so that you can be sure that all the resin and hardener have come into contact with each other.

        Still sticky or dull? If there are unexpectedly poorly hardened spots in your work, try the following:

        • Allow the epoxy to harden longer if the packaging states so. Make sure that the epoxy can harden properly and do not remove it from the mold too quickly out of enthusiasm.
        • Apply a new thin layer of epoxy to small jewelry of up to 5 centimeters.
        • Carefully apply a thin new layer of epoxy to creations larger than 5 centimeters.
        • Are you using UV Resin ready-made resin and is it still sticky? Then let it harden under a UV epoxy resin LED lamp or place the epoxy in the direct sun for a few hours. The stickiness will disappear automatically.

        [11] How do I make gold edges or texts on epoxy?

        You can apply the gold edges around epoxy coasters in different ways:
        1. Then draw the edges with a Posca paint marker or with gold acrylic paint and then go over it with transparent lacquer or varnish, so that it protects the color well.
        2. Powder the silicone mold in advance with gold or silver metallic pigment powder and only then pour it, then they come out with a gold edge.
        3. Apply gold foil to the edges of the silicone mold and then pour the epoxy .

        [12] How do you prevent objects from 'swimming/floating'?

        If you are going to pour objects (photos) or dried small flowers, you pour this in 2 times. First you make a thin layer of epoxy into which the object will later be placed. Let this harden first before you place the object here. If you immediately add an object with epoxy resin to a mold, it can float or sink. You don't want that.

        If you add a photo or drawing to the epoxy : laminate it first. Otherwise, the epoxy (water-like substance) may damage the photo or drawing.


        [13] Removing air bubbles from epoxy

        Air bubbles can form when working with epoxy . Many customers remove these with a lighter or gas burner. This works well, but be careful. The epoxy is flammable if it is exposed to too much heat. Heating for too long can also damage the mold because the epoxy will stick to the mold.
        To prevent air bubbles, it is best to let the epoxy rest for a while after mixing it with, for example, dye, so that the air bubbles rise and most of the air bubbles will burst.


        For all relevant information, see the following article written by our epoxy experts:

        Article: Removing air bubbles from epoxy

              [14] Difference between UV Resin and epoxy casting resin?

              UV Resin ready-made has been specially developed to make the most beautiful jewelry. This epoxy is ready-to-use and quickly drying. Thanks to a handy spout, you can pour the epoxy directly from the bottle into a mold. So you don't have to mix it.

              We had this epoxy developed ourselves, because there was a lot of demand for it from our customers. An approved epoxy with always high European quality. The more than 800 reviews on the product page speak for themselves.

              With other brands of epoxy it is often necessary to add a UV stabilizer and hardener. Here you work with a mixing ratio of, for example, 1:1 or 1:6. This often goes wrong and the epoxy no longer hardens. You do not have this problem with our UV Resin.

              This epoxy dries much faster using UV light. Place your epoxy in the direct sun or under a UV lamp: the epoxy will dry within 1-2 minutes. The advantage is that you can work quickly and quickly apply different layers to your work of art.

              Epoxy casting resin is a 2-component epoxy that you have to mix together. This mixing ratio is quite precise. In addition, this epoxy must dry for 24 hours before you can process it further and harden for up to 48 hours before your workpiece is really ready.

              But watch out! There is also a casting resin variant in the Netherlands called Resion UV resin. This is not UV Resin, but ordinary casting resin. You also still have to mix this yourself with 2 components and it has the same long drying time as casting resin.

              What is suitable for what?
              We recommend UV Resin to our customers for making jewelry and other small objects. This is because of the fast processing time and you can build up a piece of jewelry in thin layers with all kinds of nice materials incorporated in the different layers, so you create a nice 3D effect.

              For larger projects, such as casting a tray or coaster, we always choose epoxy casting resin.

              [15] How do you get a deformed silicone mold back into shape?

              Silicone molds for epoxy or bakeware are (fortunately) very flexible. The thinner the mold, the more flexible. The disadvantage is that such a flexible silicone mold will also deform more quickly due to the mass of the epoxy , careless storage, etc. During shipping, molds can sometimes be a bit deformed or bent.
              Before casting, first check whether your mold is neatly straight in shape.
              You can wring and squeeze a deformed silicone mold a bit to get it back into shape. If this does not work, you can try to reform the mold by placing a heavy object in it or turning it over. A third option is to tape the silicone mold to your work table.

              More information?

              Do you have questions about making art, jewelry or casting/coating floors or other objects? Several epoxy experts work at itsOkay, each with their own expertise. We are happy to help you.

              Contact itsOkay customer service or take a look at the Epoxy knowledge center .

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