Puzzle glue for diamond painting: Hasi Jigsaw Puzzle Glue
Hasi Jigsaw Puzzle Glue is a water-based finishing adhesive for puzzles and diamond painting in Korea. I applied it thinly to a Suni photo puzzle and a four-year-old sunflower diamond painting; brush marks disappeared as it dried, while the color and shine looked clearer. Verdict: a neat option for securing loose pieces.