I transported this product in my car. The container was never opened and the seal was intact. The lid was screwed tight, but the lid leaked and damaged the mat, see picture. DO NOT CARRY THIS PRODUCT IF IT IS IN A SEALABLE PLASTIC BAG AND PLASTIC BAG. I am working with the manufacturer to recover the $85 cost of purchasing an OEM replacement gasket on Ebay. This is a hazardous material and should be used with extreme caution.