To it may concern.

At present I am designing a silo to store asphaltic concrete (hot mix). I
request information on insulating materials that will be able to maintain
the temperature of the hot mix at 350 degrees F for a period of a few hours
to seven days.

You may contact me at
savitryrajpaul@hotmail.com

Thank you for your assistance.
Yours respectfully,
Savitry Rajpaul.