can you epoxy double-wall acrylic tumblers?

Can you epoxy double-wall acrylic tumblers? Yes, you can epoxy double-wall acrylic tumblers. As with any glass product, it’s best to clean your drinking glasses with soap and water before applying the epoxy so there are no food particles or other contaminants on the inside of your glass.

Can you epoxy over acrylic paint on a tumbler?

When you use epoxy to coat your acrylic tumbler, you need to make sure that the acrylic paint is removed. If not, it will trap moisture and can cause the epoxy to bubble or peel off.

You may be able to remove most of the paint by hand or with a little sanding with a sanding block or fine grit sandpaper. If there is still too much paint on the surface, though, you can use a power sander (like this) for more thorough cleaning.

If you still have some stubborn acrylic paint left after using these methods, then chemical strippers are another option that many people choose over other methods because they work quickly and effectively without damaging most surfaces underneath like mechanical stripping might do.

However, this method does require more caution than mechanical stripping since there’s no way of knowing whether your tumblers contain any harmful chemicals until after they’re exposed during application!

How do you seal a double wall tumbler?

If you want to get your tumbler really clean, use dish soap and hot water. Make sure that the lid and straw are removed before hand. Cleaning with only hot water will not remove stains or residue from the inside of your tumbler.

If you need to remove any stains, use rubbing alcohol as it’s a great solvent for removing oil and grease from glass surfaces.

To dry the tumbler, use a paper towel soaked in rubbing alcohol that has been wrung out good (not dripping wet) and dry off all surfaces including around all edges of the lid where it meets the wall of your glass.

You may also want to use a hairdryer if you don’t have access to an air compressor because this can help evaporate any remaining moisture left over after cleaning with rubbing alcohol.

Can you epoxy over plastic tumblers?

The quick answer is yes. You can use epoxy to seal acrylic tumblers, plastic tumblers, glass tumblers and ceramic tumblers.

However, the method of application will depend on what type of material your drinkware is made from and whether or not it’s already been sealed with any type of coating or varnish.

Depending on how old your drinkware is, you may be able to find information about its composition online or by looking at the label inside the cup/mug. If this doesn’t work for you, check out our guide here: What Kind Of Drinkware Should You Use With Epoxy Resin?

If your cup has never had any sort of coating or varnish applied to it before (like those big white plastic cups), then you’re in luck! This means that there won’t be much prep required before applying epoxy resin to your cup/bowl/etc., aside from washing off any dust particles from its surface first using soap and water (or rubbing alcohol).

How do you prepare an acrylic tumbler for epoxy?

First, you must clean the acrylic tumbler with soap and water. Use a toothbrush or scrubbing sponge to remove any stubborn stains and debris. Rinse the tumbler with hot water to remove all traces of soap residue and dry it thoroughly.

Next, fill a large container with warm water (not too hot or cold) and add 2 tablespoons of baking soda per 16 ounces of water to create an alkaline solution that will neutralize residue on the surface of your acrylic tumbler.

Tip: If you’re not sure how much baking soda is equal to 2 tablespoons, use one level measuring spoon as your guide. Place your glass in this solution for about 10 minutes before rinsing it clean once more with hot water.

Do you have to spray paint a tumbler before epoxy?

Here is some general information about using a tumbler with an epoxy.

  • Can you use a tumbler that has paint on it? Yes, but it’s easier if you don’t have any paint on your tumbler. You may want to clean the surface first with soap and water or alcohol.
  • Can you use a logoed tumbler? Yes, as long as there is no design or text on the inside of the glass (you can see this when you look through the glass).
  • Can I use a decorative design on my glass? There are different opinions here, but we say yes! If there is no text or lettering inside the glass and there’s still plenty of room for epoxy then go for it!

Can you glitter and epoxy acrylic tumblers?

Yes! You can use glitter to decorate acrylic tumblers. But you can also use glitter on any other glass, plastic or metal items that you want to decorate. I like to add glitter to glass cups and mugs, wine glasses and even champagne flutes.

You can also add a bit of extra sparkle by making your own custom etched patterns in your acrylic tumblers! Just follow these tips for how to create your own DIY etched acrylic drinkware with Mod Podge Dimensional Magic:

How do you seal acrylic tumblers?

  • Use a clear epoxy.
  • Use a clear epoxy with UV protection (this is the kind I used).
  • Use a clear epoxy with UV protection and top coat (I didn’t use this because I just wanted to seal them in case any water got inside).
  • Or if you want to go all out, add glitter!

Can you epoxy plastic Starbucks cups?

You’ll want to make sure that the plastic you’re using is appropriate for the application. Some plastic cups and mugs are heat-resistant, but some aren’t. The same goes for epoxies: some will work better than others on different types of plastics.

If you want to use a single-part epoxy to seal your Starbucks cup or tumbler, go with something like JB Weld Plastic Welder ($8).

It comes in two parts—one white and one gray—and it’s very easy to use; just mix them together and apply it like glue, then let it cure overnight (or until it turns clear/transparent).


I hope this article has helped answer your question about how to seal acrylic tumblers and cups. If you have any other questions about sealing plastic Starbucks cups, please feel free to comment below!

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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