Does your customer return the 800 rolls to you ??? If so, I would like to take it back.
I’ve asked some of my customers if there’s the same problem found during using this mica tape but nobody gave me negative comment of this product. By with our inspection and comparison with the similar product from Isovolta, I’ve found better tensile strength with Isovolta’s tape.
However, one roll sample was sent to Korean manufacturer for testing and confirm whether or not the properties of their product are within the test report. If not, they must be a compensation on this.