ok, for the regular putty, it still works great, just takes more time and effort.. since it's a paste like putty, it is very soft and brittle after it drys, so you must use finner sand paper and use care when sanding. results look great and "almost" ready to be primed.. but I'd strongly suggest spraying a light coat of grey primer over the entire model just so you can tell where all the uneven spots are and all the holes,cracks, etc etc are... then fill those with either regular putty again, or use Mr. Surface liquid putty.
as for the EPOXY putty, it's not all that hard to use, it comes with picture instructions on how to use them .. (the box comes with two different color strips of putty,
1- sand areas of your model(were putty are to be applied) down with coarse sandpaper to roughen up the surface
2- cut out a strip of both colors of equal length (of desire amount to wok with)
3- wet your fingers a bit then mix them two putty together until they appear to be in one color only. (note.. this do get sticky)
4- take the mixed well putty, and mold them in with your hands (YES.. your hands.. this works best)
5- wetting your fingers during the entire time, and try to hand mold the putty into a rough form of the body kit (you can use wet rulers and similar objects like popsical sticks to help you get straight edges).. note: this will not end up looking pretty good and straight yet.. don't worry
6- let dry for 5-6 hrs then cut/carve edges to more desire shape and to get straighter lines
7- let dry for an additinoal 6 hrs after then you may start sanding to get better shape
8- after sanding, you'll notice that it's still not 100% straight and smooth, this is when you try to fix it with regular paste putty and MR. SURFACE liquid putty
you may wish to make parts from scratch with the EPOXY PUTTY as well.. such as rims and spoilers.. they work great.
good luck
