Quote Originally Posted by rgsparber View Post
Marv,

Duct seal is new to me. Interesting product.

Thanks,

Rick
It's perfect for a backstop. Even a high power 0.22 pellet can't penetrate and, since the pellet is trapped, there are no ricochets. Plus, with patience the spent pellets can be harvested and used for weighting various things around the shop like round-bottomed soda cans turned into small parts trays.

I've never actually used it for its intended purpose. However, when the installer drilled through the house wall to install the Verizon cable I watched him seal the hole with the stuff.