Diamond painting sealer for loose drills: Hasi 247ml
In short
Hasi Diamond Painting Sealer 247ml is a water-based PVA finishing liquid for diamond painting projects in Korea. I used it on my child’s diamond painting stickers with weak adhesive; it spread easily without a harsh smell and dried with dimension and a soft shine. Verdict: a worthwhile final coat if you worry about drills falling off.

Good to know
- Volume
- 247ml
- Includes
- Silicone brush
- Drying time
- About 1–2 hours; at least 2 hours is recommended
- Material
- Water-based PVA
- Suitable for
- Diamond paintings, puzzles, photos, paper, and wood
Prices as written by the tester on Aug 1, 2025 · not updated automatically
Why I needed a sealer for diamond paintings with falling drills
My children often do diamond painting, but when they turn their projects into keyrings or stickers and carry them around, the drills inevitably start falling off one by one. Diamond painting seems just as easy to lose pieces from as it is to stick them on. So I tried clear nail polish and top gel, but they smelled, needed equipment, and… there were so many inconvenient parts. Then I found Hasi Diamond Painting Sealer. After trying it, it was so easy to use and made the project look beautifully finished.

A generous 247ml bottle with a silicone brush
Hasi Diamond Painting Sealer, which makes diamond paintings sparkle even more, comes in a generous 247ml size and includes a brush. That means it can be used on very large drill projects or framed diamond paintings too. It is a sealer that keeps the gem-like drills from falling off while adding shine and a protective coat.



From the silicone brush to the large bottle, it is a well-rounded set. The box explains how to use it in detail, so beginners and children can use it easily too.
How to use diamond painting sealer and drying time
Use the silicone brush to spread the adhesive evenly between the diamond drills. It takes at least 2 hours to dry completely, though the exact drying time varies with the thickness of the adhesive layer. Once fully dry, the adhesive becomes brighter and glossier.
- Twist the special cap slightly, apply the adhesive, and smooth it out with the silicone brush.
- Let it dry completely, then rinse the used brush with water before storing it.


Applying it directly to my child’s diamond painting sticker
This is a diamond painting sticker my child made. The drills were spaced out here and there, and the adhesive was not very strong, so one or two were about to come off. I am going to apply Hasi Diamond Painting Sealer to give it shine and strength.

The silicone brush is flat and soft, so it spreads the sealer evenly without brush marks. It is a large-volume diamond painting liquid made from water-based PVA that has passed strict safety standards, so it is nice to use with children. It was convenient because there was no harsh smell while applying it. Just squeeze out an appropriate amount and spread it with the silicone brush—it is that simple. Drying takes about 1–2 hours.

The photo above is right after applying the sealer, but once dry, the diamond painting’s dimension came through nicely and it had a soft shine and a more secure feel, which I loved.

An easy finishing coat for lasting shine and cleaner projects
Because it helps preserve finished diamond paintings firmly and with their shine for a long time, I highly recommend it to anyone whose hobby is diamond painting. Finishing with diamond painting sealer helps prevent drills from falling off and protects against dust and stains, so you can simply wipe away surface dust or grime with a wet wipe. It also emphasizes the sparkle and makes the work sturdier, so it really is a finishing step you should not skip, right?



Where else I tried it besides diamond painting
I made a trivet with my children, and I made a small mistake when applying plaster, so the surface was a little uneven. I also applied a thin layer to wood because I wanted to make it water-resistant, and it coated well. This coating liquid can be used on puzzles as well as photos, paper, and wood. Give your finished diamond painting a more dimensional, sparkling result. Hasi Diamond Painting Sealer is essential now.
Where to buy
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