We have personally field tested this shield material (by personally, we mean our office intern, Justin, has personally tested it...) and we (Justin) found it to be totally resistant to positron beams, 80% resistant to stray gravitron radiation, and slightly impervious to random neutrinos, but that's pretty good considering neutrinos go through lead like it is wet tissue paper. Which is good, because if you get a bunch of anti-matter hurtling at you it makes a pretty big explosion if it touches any of the electrons involved in your ship's hull or, god forbid, your family jewels!
As you can see in the image above, there are still a few kinks to be worked out of the beta version. If you fail to follow the instructions, the laws of physics - or common sense - you might end up with a severely mutated phrygian node, some burnt toast, or a one way ticket to the doppleganger dimension. Honestly, you would not believe some of the crazy stunts some of our less wise customers try to pull...and then slap US with the lawsuit! Seriously, check with your doctor to confirm your blood type and skin polarity before you try to use this. And it can't hurt to have a hefty supply of extra lead and some compressed carbon dioxide mixed with inert foam on hand. That being said, our field test personnel report that despite sustaining a direct hit from a photon SCUD fired by a Galactic Revenue Service frigate, the xyzzy's are still reading 12.09 necrobars! Join the wave of the future and get your personal Thrugister (TM) today!