T68 can be provided in a range of options depending on the end use. T68-1A is the standard graphite product with one side 30 micron adhesive tape, this facilitates attachment and provides a good great down voltage. T68-1B is a graphite product with one side 10 micron adhesive tape, which facilitates attachment where a high breakdown voltage is less important. T68-2A is a graphite product with one side PET (30 mircon) plus a 30 micron adhesive layer, this product offers the advantage of high breakdown voltage plus an adhesive layer to facilitate manufacture. T68-2B is a graphite product with one side PET (10 mircon) plus a 10 micron adhesive layer, this product offers the advantage of high breakdown voltage plus an adhesive layer to facilitate manufacture. T68-2C is a graphite product with one side PET (30 mircon) plus a 10 micron adhesive layer, this product offers the advantage of high breakdown voltage plus an adhesive layer to facilitate manufacture.