Erik, @airbum
I had an "old" bottle of Tamiya extra thin glue. It was getting very old, and it had started to get a little cloudy looking. This cloudy appearance was most likely due to the brush contacting plastic parts as the glue was applied.
My old bottle of Tamiya Thin was half full. So I snipped some Revell "Gray" plastic trees into a bunch of tiny plastic parts, then dumped these little plastic parts in the half full Tamiya glue bottle, and let them sit for several days. During this "sitting" time, I would occasionally open the bottle and stir it up, using a wooden stir stick, better mixing the plastic chips into the glue.
After several days I had a half full bottle of Liquefied Styrene. My first batch was too thin, and it had the tendency to run if you were not careful with the application. So I added some more plastic scraps, and I was very happy with the final mix. I used gray plastic for my home made brew, as I thought it would blend in better once things were shaped with a file and then sanded smooth. I did this for painting reasons, since I don't usually apply a primer paint base. Since I'm usually painting with enamels, they bite into the plastic better and allows me to do this. If I have a trouble area, I occasionally will spray some primer to see how it looks in this location only. If I am spraying an acrylic paint, then spraying a primer base is a must. If you don't do this "primer" step when using acrylics, you will have paint that will flake off... and this always happens to me just before I'm ready to apply the decals !
If it were not for our friend Spiros, I wouldn't have known about using this stuff. I'm hooked on it, and have been using this mixture since then for filler material. The only down side to using it, is the extended waiting time for it to cure. The video he posted got me thinking about using this stuff.
After letting this Liquefied Styrene set up for several days, (sometimes up to a week later), I use several types of differently shaped hobby files to shape the dried plastic "blob" into something that resembles the area I wish to fill in. Once it is "close enough", I do the final shaping using progressively finer grit sandpaper, until the repair is invisible.
You can treat this liquefied styrene filler the same as you do the surrounding plastic. It will not chip out when you are re scribing panel lines, or when you are adding rivets. This is the pitfall of using a regular type filler. I have had this problem happen to me before when I used other fillers.
I have tried using "Thick" CA glue, but ended up sanding away more of the surrounding plastic, and was left with the CA glue still largely intact. The CA is almost always harder that the plastic material, so it will sand off at a slower rate than the plastic it is being used on as a filler.
Some people have great results using CA glue... I'm just not one of them.
This is why I am now using the liquefied styrene exclusively on all of my builds. I use the extended drying times to work on something else. This is why it is good for me to have multiple projects going on at the same time. Here's my first time using this stuff. This is my 1/32 Hasegawa Ki-44.
Thanks again Spiros ! @fiveten
You're the best... 🙂