I bought some molecular sieve (HFS (R) Molecular Sieve Zeolite 3A 8X12 mesh). When I got the package the contents were in a silver sealed bag and hard as a rock. If it was vacuum sealed I could see maybe it is packed real tight, but I assumed it would be loose in the bag. I do not want to open it if it should be loose, I will send it back
Any help would be greatly appreciated
Bob
Any help would be greatly appreciated
Bob