WHY CEMENT INSULATORS ARE NOT A GOOD INSULATOR FOR GUN SAFES
ABOUT REAL CEMENT (Not Composite "Cement") INSULATORS
It's Is Not Good Enough-
If it doesn't have a UL Fire Rating, you can't believe the fire rating given. However, there are a lot of UL Fire rated safes lined with REAL cement! It is one of the best safe insulators. Understand there are other "cement" composite insulators that DO NOT add to the security of the safe like real cement would, so it would be best to look at the steel thickness being used in those safes, to really see how much security your getting. Although real cement is very effective when it comes to fire protection (with 3in or more in the walls), cement doesn't cost the manufacturers much money. Real cement like insulators don't need to be installed in safes with thick steel, which also saves manufacturers a lot of money, however, they charge a great deal of money for these safes, and they usually carry TL ratings.
Weighs The Safe Down-
Unlike composite "cement" safes, real cement like compounds used as fire insulators, have weights that are ridiculously high (such as some TL rated safes). Freight alone on a 2300lbs safe is anywhere from $800 to $1500. Then, you will need to rent moving equipment or hire someone to move the safe for you, which varies from $500 to $1700. Most foundations can't support the weight of the safe alone. Not to mention the cost of a safe, using this type of insulator, is on average $3500. Another problem, is some safes made with thinner steel (12 gauge) that use this insulator, have too much pressure bearing down and have been known to literally fall out of square several years later.