Mine works beautifully for petg but pla not so good. Trick is absolutely clean. Fingerprints are enough to ruin it. Keep using dish soap and be sure to rinse well with warm water. Forget about isopropyl! Use a fine dry microfibre cloth before printing. You can use a spray of 1L water mixed with a few drops of dish soap on the cloth but if the plate is already clean a dry cloth can be enough most of the time.

Finally make sure your first layer height is adjusted correctly. The plastic needs to he squished slightly more into the textured surface. If in doubt go closer until you are defiantly too close (like almost scraping) and then back up up again. Then you are sure.

There are more in this series… They are used in Denmark FYI. This one is for hospitals so the cleaning lady does not plug the vacume cleaner into the same power lines as the life saving critical equipment but its compatible in the other direction if needed. The one you posted is the same idea but for IT equipment. EDB is the Danish equivalent to IT

One of the ingredients is best stored cold in the fridge and another is best stored at room temperature.