I've had my share of run in's with IPI plastics, but now my Rowmark is coming in the door with 1/4" bow in it.
Specifically, anything 1/8" thick. I get Rowmark ADA material that's 1/8" thick for a specific job I run all the time. It's now coming in so bowed I'm having to break the job up, put a 12" x 12" granite tile on one side while the other side runs. I'm also getting IPI 1/8" thick black with white core doing the same thing.
The 1/16" is also coming in with about 1/8" bow in it.
I called Johnson after fighting the last batch and was told "We are unaware of any issues. Call Rowmark".
So I call Rowmark and they say they are unaware of any issues, but it's being caused by humidity in the air. The protective plastic on one side keeps moisture from getting in, while the backside is unprotected, which allows for water to enter the product. That uneven distribution of humidity in the air is causing it to bow. They told me to remove the masking and let it sit flat for 24 hours.
Did that. Same bow in it. Never leaves.
I'm fighting this stuff really bad right now. Anyone having the same issues? Most all of this material is coming from Johnson Plastics Ohio branch. We've got some material coming from their Georgia branch to see if it resolves the problem.
Anyone else, or am I alone? It didn't use to be like this. EVERYTHING from Johnson used to be dead flat.