As at the end though it turned ... simply an error in the application!
You have to press the Conserver when brushing regularly the puzzle down,
thus correspondingly liquid adhesive comes to the puzzle. Finally, the adhesive must
enter the puzzle cracks, which now also succeeded wonderfully.
Although then the puzzle looks immediately strange, because on the puzzle pieces
even more drops and remnants of the liquid is ... but no problem. This
Liquid dries off quickly and leaves no traces.
Subsequently, the same procedure was repeated with a 1000 piece jigsaw puzzle and behold:
Puzzle keeps perfectly together!
Conclusion: Puzzle (both the 500 parts and 1000 parts of puzzle) now holds bombproof and can be hung on the wall easily with Tesa Power Strips
(Very important: conscientious application, especially in the corners, on the edge, etc.)
