Diamond painting sealer for sparkle: Hasi 247ml

In short

Hasi Diamond Painting Sealer is a 247ml water-based PVA gloss sealer for finishing diamond paintings in Korea. I used it on my sister's owl piece; after about 2 hours, the surface looked thicker, shinier, and clearer. Verdict: I would seal gift pieces before giving them away.

Surface of a diamond painting after sealing

Good to know

Volume
247ml
Ingredients
Water-based PVA
Application time
About 2 hours

Prices as written by the tester on Jul 8, 2025 · not updated automatically

My sister's finished diamond painting and how it felt after sealing

It has already been several years since my sister started diamond painting as a hobby. She began with small pieces, but now she breezes through fairly large ones too. After!!

Surface of a diamond painting after sealing

You cannot tell a huge difference just by looking, but the surface felt thicker and shinier.

Around this time last year, I gave a sunflower diamond painting as a gift because the parents of someone I know run a hair salon. I sent it by courier, and they got in touch to say they loved it.

Gifted sunflower diamond painting

Since then, my sister has kept making diamond painting pieces. She gave the owl piece to someone as a gift, and I received a pretty rabbit piece too. But I had never tried it myself, so I did not really understand the appeal of diamond painting.

Diamond painting artwork made by my sister

Does diamond painting need a sealing finish too?

I learned something new recently while taking a one-day rattan basket class. Watching the process of applying a sealer while making a rattan basket made me think diamond painting might need this kind of finishing work too. I thought that, like rattan, applying a coating liquid could help the piece last much longer.

Diamond painting sealing process

So I asked my sister about sealing diamond paintings, and she said she had always thought that once a piece was finished, that was it. She regretted not trying it sooner if she had known there was an adhesive like this for keeping diamond paintings for a long time.

Diamond painting artwork before using sealer

So we looked into it together and found products made with safe water-based PVA, and one product in a large 247ml size especially caught our eye. It seemed economical and nice because the amount is quite generous. It seems much more reasonable than buying several small bottles.

247ml large-capacity diamond painting sealer

Using the sealing liquid on the owl piece

After using the diamond painting sealing liquid, it really did a great job of preserving the sparkle. (It took 2 hours..) The beads looked clearer, and a luxurious gloss came through.

It made me want to seal all the pieces my sister has made so far one more time.

The nice thing about this bead gloss sealer is that it can be used in many ways. It is useful not only for diamond painting but for other craft projects too. Thinking about it, I feel like it would be easy to use on puzzles as well.

Information about diamond painting crafts
Diamond painting (also called diamond art or bead embroidery) is a craft activity in which small gems or beads are attached to a canvas to complete a picture, and it may have positive effects on psychological well-being. Why diamond painting can help with psychological stability: 1. Better concentration and immersion (a flow state): Because diamond painting requires detailed work, it can improve concentration and let you experience a mindfulness state while becoming immersed in the task. This reduces distracting thoughts, helps you focus on the present moment, and relieves stress. 2. Stress relief and relaxation: The repetitive motion of attaching beads is simple but rhythmic, and can have an effect similar to meditation. It can activate the parasympathetic nervous system, ease tension, and provide a sense of psychological stability.

After sealing a diamond painting, the overall finish of the piece definitely felt different. It is protected from dust and moisture, while the colors stay clearer too. Gift pieces especially seem to need this kind of finishing work.

Gift diamond painting artwork after sealing
Finished diamond painting after sealing

I am happy with it because it is a large-capacity sealer that can be used for several projects. My sister says she now plans to include the sealing step every time she makes a new diamond painting piece.

Diamond painting after the sealing work
Sealer being considered for other DIY uses

It has so many uses that I am still deciding where to use it.. I want to try it for rattan crafts too, and use it for other DIY projects. I am excited because buying one seems like it could be used in so many different ways..!!

Where to buy

Hasi · Hasi Diamond Painting Sealer 247ml하시 보석십자수 코팅제 비즈광택제 247mlPrices as written by the tester on Jul 8, 2025 · not updated automatically
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