Sir, As per my knowledge, the Dynamat Distributor in Pakistan wrapped up the business. He mostly brought in Dynamat Extreme but would have catered to your requirement
Call him up and discuss if there is still a possibilty.
03458555445
Hassan
hmasud@365trade.pk
@margallar is right. You have to try your luck in Bilal Gunj and try to find the insulation there. As per my little knowledge, no other self made combination would be safe.
For sound insulation though, I have played with Jumbolon, Tractor Tyre Tube, and in the end Dynamat. But never for heat insulation.
Maybe some one can suggest a fabric and you can fill it up with that rockwool used in Water Geysers