We only delivered once a slightly different fabric which is the standard fabric for palm oil fractionation (PO BP/F 078/2012). Our quality control measured a thickness of 0.50mm. In my email dated 18th March, 2014 we confirmed a thickness of 0.55 +/- 0.05mm. We regret to tell you that from our point of view there is no problem. Even the fabric with your PO BP/F 078/2012 would have worked without any problems.