We prefabricate insulation pillows as follows:
a) Stonewood PAROC 100 kg/m3 and 50 mm thickness and second layer ceramic blanket 128 kg/m3 and 13 mm thickness
b) for small dimeter of pipes we use ceramic blanket 128 kg/m3 and 25 mm thickness.
We use glass cloth style600 with working temperature up to 500 OC. The pillow is secured with galvanized wire and special studs.