Made of 3/8” HDPE, the sides are 3 “ high and are welded together to create a tight seal that never requires sealing. Simply turn the form over once it’s cured and tap the back with a mallet and watch your creation pop out of the mold. The sides are welded at a 5 degree to allow your project to drop out.
Simply tap the inside of the sides and flip it over and tap the backside with a mallet to remove your project.