Letter Re: Hardening a Home Against Small Arms Fire
I found a product called Grancrete, that when laid down with a trowel and embedded with multiple layers of fiberglass can be made bullet proof. I was originally investigating this stuff because it was invented for nuclear waste encasement I thought it could be used for a little extra protection. After talking with a very knowledgeable staff I found out that it has never actually been used for nuclear encasement but they have completed ballistic tests and it was resistant up to a .30-06 with just a two-inch layer. I do believe that people could easily retrofit a house [with …