I’m sorry it didn’t work out for you. I’ve always had great success with the 582U on smooth surfaces.
Cleaning the substrate first, and applying the masking using firm pressure from a squeegee are both important factors… and if you live in a very humid area its probably gonna be much more difficult to get proper adhesion.
-edit- I don’t have any need for a 6" roll at the moment, and I’m sure you can’t beat the industry prices I pay, but if you can’t find a local buyer I’ll see if we can work something out.
Not sure if this will help anyone, but a woodworkers tip.
If you want to get rid of the “hair’s” of the grain so that you have a good smooth surface, spray the surface with a misting bottle and let the surface air-dry. That will raise all the grains intentionally. Then when you sand the wooden surface, you’ll end up with a very smooth face. That would certainly help with putting the masking on. But it will certainly take a lot longer to “prep”. You can take a number of your boards or plywood and prep them at the same time, and then only have to pick them up and apply the masking when you are about to put them in the laser.
Don’t worry!! I totally get it! I studied Biology in college and there are SO MANY scientific terms that are used in the wrong way in vernacular speech. I definitely agree with everyone that you do have to focus on vernacular speech when considering safety in this sort of situation. But seriously, I have many moments all the time when I just want to say “no one is using this word right!”
Interesting. People use it all the time - this is a really common brand in many of the GF communities. I suspect that one (or more) of three things is true: 1) they have no idea, 2) they don’t want to take on the liability, 3) people have complained about it not adhering and it has become an issue.
“Not recommending” something isn’t the same as saying it’s not safe. That said, a lot of people seem to have issues with that particular brand adhering (I can’t tell if it’s the product, the users, or a combination of both) so it doesn’t seem like a great loss.