Keith,

A few addition comments I forgot to mention... You should try to find a strainer that as coarse as possible, in the interest of minimising the pressure drop across the screen. Other than that, you need to have a good look at the screen after cutting to make sure there aren't any loose screen fibers. Once its been checked, Roy's idea to seal it with an adhesive is also a good follow up. I'd recommend trying the black rubbery CA glue or a silicone of some kind. Thick CA has a habit of becoming brittle in some cases, which could negate the point of the FOD screen some time down the road.

Good luck!

Kelly