>>10980821Hey! I've been doing this for a while now.
I'm using the tamiya extra thin to bond the parts together since I concluded that tamiya ABS cement seam weld is more visible after the treatment, then I run down the seam with my knife to remove any excess, and finally i sand it down with a 300 superfine 3M sanding sponge.
If you let the glue stay for a bit before pressing the piecies together it'll melt the plastic a bit more and it'll allow it to come together a bit tighter.
Be sure to cut the pegs at an angle (pic related) of whatever you're gluing so they don't get stuck, but are still there to guide the parts together. It will also help you control the gap in between the parts with much greater precision.
Even with all that treatment the seam will still be somewhat visible up-close.
Though I have not tried making putty out of Koto's ABS skintone parts.