So how exactly do you make resin tumblers?
Step 1: Choose a tumbler
Stainless steel tumblers work best. Resin likes to stick to metal, so you don’t have to worry about your resin peeling off the surface.
This isn’t always the case when using plastic tumblers with resin. If you want to try, coat it with a plastic primer paint before applying resin.
Step 2: Clean your tumbler
For the resin to stick to your tumbler, it must be clean. Any dirt, grease, or oil will keep the resin from sticking. You can use isopropyl alcohol or dishwashing detergent.
Step 3: Decorate your tumbler
Gluing glitter to tumblers is an easy way to decorate them before adding clear epoxy. You can also add stickers or other art at this step. If you use paint, let it dry for 24 hours before adding epoxy.
💡 Pro tip: If you want to let the resin do the work, that’s cool. Skip this step and add glitter or colors to the resin and apply once your tumbler is turning.
Step 4: Set up your tumbler turner
Because mixed resin is fluid, you must keep your tumbler moving while the resin is wet. If you don’t, your resin will run off the side, pool in places, or coat unevenly.
The easiest way to keep your resin moving is to use a turner. This works like a rotisserie cooker to keep your cup moving. If your cup doesn’t move while the resin cures, it will pool on one side and hardly cover the other side. (Imagine pouring syrup over a stack of pancakes.)
💡 Pro tip: If you don’t want to invest in a turner, you can manually turn your tumblers several times while the resin cures. You’ll need to turn your tumblers 180 degrees every 2 to 3 minutes for the first 3 to 4 hours of the resin curing time.
Step 5: Protect areas on the tumblers where you don’t want resin
Because resin drips everywhere with this project, you need to tape off areas where you don’t want to get resin. Use painter’s tape to cover openings and places you don’t want the resin to cover.
Step 6: Prepare your work area
Because the resin will drip onto your work surface, be sure you protect your table. A garbage bag, plastic painter’s tarp, or a silicone mat are surfaces resin won’t stick to.
Step 7: Mix your resin
You want to use the Resin Obsession crystal doming resin for this project.
It cures beautifully clear and thick in only one coat. It also locks in epoxy colors if you want to use colored resin on your tumblers. And whether you leave it color or use it colored, it’s designed to finish without fisheyes and dimples.
An average-size tumbler takes 1/2 ounce of resin to cover it with a light coat. But you might want to mix more and have a couple of different projects ready to go just in case you have leftover resin. Here are a few of my favorite leftover resin projects.
By the way, if you’ve never mixed resin before, there are a few details you want to be sure to get right. Learn how to mix resin in five easy steps.
Step 8: Apply the resin
You may be wondering exactly how to make resin tumblers. Don’t be afraid. It’s actually pretty easy.
Use your stirring stick or a foam brush to apply the resin. You can also pour resin on your tumblers.
You can use your hands to apply the resin if you wear gloves. Smear it over the surface and blend colors.
Once the resin is partially cured (about 2 to 4 hours after mixing), you’ll want to remove the painter’s tape. The resin will be soft like gelatin, and any resin that ran onto the tape will peel away with it. If you want until the resin is completely cured, you’ll need to sand the resin to get this tape off.
If you’re using a turner, keep your tumbler turning until it is fully cured. This takes 24 hours.
Ta-da! You just learned how to make resin tumblers.
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