Diamond painting sealer for keychains: Hasi 247ml

In short

Hasi Diamond Painting Sealer is a 247ml coating liquid for securing and maintaining the shine of diamond painting keychains. After making Cinnamoroll and Pikachu keychains, I spread it on with the silicone brush and let it dry for over 2 hours, noticing a subtle gloss and better hold. Worth using for keychains you want to keep or attach to a bag.

HASHI Diamond Painting Sealer 247ml product
HASHI Diamond Painting Sealer 247ml

Good to know

Volume
247ml
Includes
Silicone brush
Drying time
At least 2 hours
Suitable materials
Diamond paintings, puzzles, photos, paper, and wood

Prices as written by the tester on Sep 26, 2025 · not updated automatically

HASHI Diamond Painting Sealer 247ml product
HASHI Diamond Painting Sealer 247ml

Why diamond painting keychains need sealer

When making diamond paintings, beads can start falling off one by one, or debris can stick to the adhesive surface. This time, I wanted to write about using a sealer to secure the gems and preserve their shine.

Hasi Diamond Painting Sealer (247ml large size, with a silicone brush) can be used on diamond painting keychains too, and I found that it held the piece firmly in place while keeping its shine for longer.

Diamond painting coating liquid with a silicone brush included
Diamond painting coating liquid with silicone brush included

What is included in the 247ml sealer set

The package included a generous 247ml bottle and a silicone brush.

It is made from water-based PVA, so it felt safe to use. I also liked that the silicone brush spread it evenly without getting it on my hands.

This liquid can be used on puzzles, photos, paper, and wood as well. ✔️ It is less sticky than conventional varnish, which is a big plus for beginners too.

Instructions for using diamond painting sealer
Coating liquid and silicone brush application process

How to apply diamond painting sealer

  • Pour an appropriate amount of liquid over the piece.
  • Spread it evenly with the included silicone brush.
  • Let it dry for at least 2 hours. Once fully dry, the colors and sparkle come through more clearly.
  • Wash the silicone brush immediately after use.
Materials for making a Pikachu diamond painting keychain
Preparing the Pikachu diamond painting keychain

Making a Pikachu diamond painting keychain

What you need

  • Colored gems, adhesive, applicator stick, and keychain pattern (all included in the kit)
  • Sealer

I bought Cinnamoroll and Pikachu diamond painting keychain kits, but you can also find diamond painting keychains at Daiso.

Keychain pattern for attaching gems in number order
Attach in number order
Diamond painting keychain making process
Completed diamond painting keychain before coating

How to stick them on in number order

  • Attach the gems to the pattern in numerical order.
  • Pick up and attach each gem with the adhesive applicator stick.
  • Fill every space, and the pre-coating piece is complete!

✔️ Young children and elementary school students can enjoy diamond painting too, but because the beads are small, it is best to work under parental supervision.

Things to watch out for when coating keychains

Now it is time to coat the diamond painting keychain. Lay down a sheet of paper first so the adhesive does not stick to the surface below—

Keychain coating work prepared with paper laid underneath
Preparing to use diamond painting sealer

It works like regular wood glue: twist the cap and the glue comes out. Twist it back the other way to close it. Be sure to close it when not in use so it does not harden.

Diamond painting sealer used by twisting the cap
Spreading sealer with a silicone brush

Use the included silicone brush to spread the adhesive flat.

Clean up any adhesive that has seeped out with a cotton swab or tissue for a neat finish. ✔️ Make sure to wipe the silicone brush and store it after use. If you leave it as is, it dries in bumpy clumps and will not spread the liquid evenly.

Comparison of matte Cinnamoroll and glossy Pikachu keychains
Cinnamoroll—matte; Pikachu—glossy (adhesive)

Shine and hold before and after coating

Shine: As it dries, it creates a subtle glossy effect, making the piece look clearer.

Hold: There is less worry about gems falling off, so pieces made with children can be kept for longer.

Versatility: It can coat not only diamond paintings but also puzzles, photos, paper, and wood, so it has many uses.

Finished Pikachu keychain with shine enhanced after coating
Pikachu keychain with shine enhanced after coating (finished shot)

Before and after coating may look similar at a glance, but the difference is clear when storing the piece long-term.

Especially when a child attaches the keychain to a bag, it gets bumped around and the gems can fall off easily. Applying sealer reduces that worry.

✔️ If you want to keep a finished piece for a long time as a gift or keepsake, diamond painting sealer is an essential item.

After using Hasi Diamond Painting Sealer, the piece's sparkle and holding power were definitely different. If you want to keep a diamond painting keychain for a long time after making it, definitely try using a sealer!

Where to buy

Hasi · HASHI Diamond Painting Sealer 247ml보석십자수 코팅제 247mlPrices as written by the tester on Sep 26, 2025 · not updated automatically
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