Normally insulations in Thermic fluid system is done with glass wool or rock wool, with specific thickness, cladded with Aluminium.
Problems with this type of insulation is,
1) Leakages through valve glands and through flanges go unnoticed.
2) Leaked oil gets absorbed in insulation itself which is a very big safety hazards.
Our insulation jackets are non oil absorbing, easy to apply and easy to be taken out whenever required.