Very practical, easy to use

There were several panels out of the 24 that had been crushed on one edge and never fully recovered, but in reality, only 21 were needed to cover my 36" door, and 3 were already cut, so I could have lost a damaged edge. It's better to order a few more than necessary, if possible, to avoid having to use a damaged one (apparently damaged by extreme vacuum packaging, which caused permanent deformation). I cleaned the door before application to ensure there was no dust, took my time, and repositioned the panels as needed to avoid leaving gaps, and they stayed perfectly in place. I used simple scissors to cut the edges as needed, using the backing as a surface to draw the outlines. The adhesive was appropriate, neither too sticky nor too little, sticky enough to make it a bit difficult to peel off for repositioning, but it did not lose its adhesion, and with a bit of tension, you could also apply some pressure to close the gaps; gaps that form if you don't pay attention to alignment during application, both vertically and horizontally, proceeding one row at a time. I hope it reduces some of the sound that reaches the other side of the door, even though common sound wavelengths are much longer than the thickness of this foam and therefore are unlikely to be trapped. A middle C tone has a wavelength of 1.3 meters. Most of the sound probably passes through. Its real function in acoustic applications is to reduce sound bounce, from flat ceilings and walls, wooden or tiled floors require carpeting to do the same. It would take A LOT to make a big (and noticeable) difference in a room; the more there is, the better if you want a theatrical environment. I probably should cover all the...

Some of these pieces never 'decompress', which means they remain flat. The adhesive on some panels seems less 'sticky' than others and has come off the surface it was glued to. Therefore, the consistency of quality is obviously an aspect that can be improved. The panels that decompress and have good adhesion seem to work well. 80% of the pieces were perfect.