How to Remove Bubbles from Domed Stickers

Q: Effective Techniques to Remove Bubbles

Pierce Visible Bubbles: Use a fine pin or needle to gently pop any surface bubbles immediately after pouring the resin. This works best for larger bubbles that rise quickly. Apply Gentle Heat: After pouring, hold a lighter or small torch a few centimetres above the resin–do not touch the surface. The heat helps trapped bubbles rise and burst. For very small bubbles, gently passing warm air above the surface (such as from a hairdryer on a low setting) can be effective. Let Resin Stand: If bubbles persist, let the piece sit undisturbed for several minutes before doming or curing. This gives more time for any remaining bubbles to surface and be removed. Choosing a self-healing, bubble-free resin like Be Flex Transparent Polyurethane Doming Resin can further reduce issues and offer a reliable, glossy finish.

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How do I remove bubbles from domed stickers?

Getting a crystal-clear, bubble-free finish is crucial when creating domed stickers with resin. Visible bubbles can detract from the vibrant, professional look of your design. Here’s how to reliably remove air bubbles before your resin cures.

Why Bubbles Appear in Domed Resin

Most bubbles in domed stickers result from mixing the resin or applying it over surfaces that trap tiny pockets of air. Even careful mixing can introduce some bubbles, but leaving them trapped in your resin will create visible imperfections in the final piece.

Effective Techniques to Remove Bubbles

Pierce Visible Bubbles: Use a fine pin or needle to gently pop any surface bubbles immediately after pouring the resin. This works best for larger bubbles that rise quickly.
Apply Gentle Heat: After pouring, hold a lighter or small torch a few centimetres above the resin–do not touch the surface. The heat helps trapped bubbles rise and burst. For very small bubbles, gently passing warm air above the surface (such as from a hairdryer on a low setting) can be effective.
Let Resin Stand: If bubbles persist, let the piece sit undisturbed for several minutes before doming or curing. This gives more time for any remaining bubbles to surface and be removed.

Choosing a self-healing, bubble-free resin like Be Flex Transparent Polyurethane Doming Resin can further reduce issues and offer a reliable, glossy finish.

When This Matters Most

Bubbles are especially noticeable on clear or light backgrounds and on highly detailed stickers. Smooth, flawless doming is essential for professional product labels or decorative stickers where clarity and finish are priorities.

Related guides

How To Create Resin Coated Stickers

With a few simple steps and the right materials, you can eliminate bubbles and ensure your domed stickers always look their best. For more tips and a complete step-by-step guide, see our main page on how to create resin-coated stickers.