JD's Sherman Tank Upgrades And Tips

I've been experimenting with this type of hull material and have had some success. For those who want to cut things off be fore warned that this stuff is very unforgiving for mistakes. It frays. The very best way is to use a hot knife (A soldering iron witha razor blade attached). Then the raised areas are best delt with by using a sharp razor blade to trim off the raised areas.
For large holes like cutting off fenders I recommend backing the hole with ABS or styrene. I first glue a piece to the hull with Devcon Plastic welder adhesive then go over it with a two part epoxy used for pipes and such (I suspect that a product like JB Weld works also) But first rough the inside of the hull up with 60-80 grit sandpaper to give it something to bite into.
I then use only Rage Pro Gold bodyfiller by Evercoat for filling. This stuff is very aggressive bonding. Yes if you throw it off of the roof the filler may crack but consider the material it's bonding to. This stuff will stick to a chrome plated socket and yes I've done it and it's still on the socket after two years (It's a shame craftsman doesn't warranty things like this). Sand it down with the usual grits you use but be careful of hitting the hull too much or you will have the fuzzies to deal with.
For large items mounted to the hull I recommend using a metal pin and drilling a hole in the hull and using the twopart epoxy from below. Things like reserve gas cans,large gun mounts,jery can racks,etc etc. Even the plastic welder over time will weaken and this is a nonporous material so very little seeps into pores. Plus we all will be transporting these things for photos and just general fun.
What type of paint seems to be the big question. Well guess what, Good old Krylon primer sticks like glue to this hull. More aggressive than I first thought. Use light coats and place the can on hot water (The hottest tap water you have) for 10 minutes before painting. This helps it dry quicker in colder climates and helps the paint atomize better while spraying.
For the finish coat you can pretty much use whatever you want. Tamiya paints work just fine on this primer as well as testors or anything you can find at Lowes or Home Depot with out reacting.