Spot filling is something I really hate doing. Just a pain in the ass when all you want to do is get back to modeling. Maybe it's just what I'm using.
I've used a variety of spot fillers over the years.
GW Has their Liquid Green Stuff, which worked OK for me (but not fantastic) for about a month when it dried up completely, despite being completely closed. I didn't particularly like how it worked when it was dry on the model (sanding, etc), but it went on pretty easily.
The totally hardcore model makers at work (who make toy prototypes for a living) turned me on to this Nitro-Stan stuff. Have had it for years and barely even dented the tube. It comes out rusty red and more liquid than toothpaste. It kind of feels like a softer Bondo when it's dry. Kind of a mess to apply, but sands really well. Probably better for smoothing larger areas than for filling cracks because it tends to shrink a lot when it dries and takes multiple applications for anything deep.
My latest purchase is this Vallejo Plastic Putty. It goes on thicker than the Nitro-Stan. It's closer to the GW Liquid Green Stuff in consistency. I put it on with an old brush and it seemed to work pretty well.
Haven't really tried sanding it yet, but it filled the cracks really nicely on this exhaust. This stuff I scraped clean with an Xacto knife and it seemed to work out pretty well. I'm encouraged by the results so far, but certainly open to other suggestions if anyone else has something they like.
|Scraped left, and slopped on right|
So whatcha got out there, Internets? Anything good?