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Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 8:13 am
by mustang1989
LyleW wrote:Great truck!
I guess I’ll try a sharpie or a paint marker to trace around those straps. Now, Molotov or BMF?
BMF will do the trick better as there'll be a sharp demarcation line. To simulate the rubber straps you could tape and mask off the sides of the straps but make the masking just a tad ( and I mean a tad) wider than the straps. AB the masked off area and then BMF the straps only and that'll leave the extra on the sides of the straps black to simulate the rubber. Just make sure you don't press too hard on the BMF on the sides of the straps as you don't want to lift the black paint when peeling the trimmed BMF pieces from the sides of the straps.
Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 8:26 am
by Medicman71
LyleW wrote:Great truck!
I guess I’ll try a sharpie or a paint marker to trace around those straps. Now, Molotov or BMF?
I'd go with the Molotov.
Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 8:35 am
by LyleW
I may yet. Started with the BMF, but I am having a hard time getting it to stick. There is a love/hate relationship with this stuff.
Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 8:41 am
by LyleW
Thanks, Joe.
mustang1989 wrote:BMF will do the trick better as there'll be a sharp demarcation line. To simulate the rubber straps you could tape and mask off the sides of the straps but make the masking just a tad ( and I mean a tad) wider than the straps. AB the masked off area and then BMF the straps only and that'll leave the extra on the sides of the straps black to simulate the rubber. Just make sure you don't press too hard on the BMF on the sides of the straps as you don't want to lift the black paint when peeling the trimmed BMF pieces from the sides of the straps.
Dude, I can't mask a 8x11 window paint to paint it! I agree with the concept, but execution would be so flawed...
Here is one that I applied the BMF and then traced the edge with a extra fine point Sharpie. Okay, I guess. Getting ready to try something else on the other tank...IF my eyes, hands and neck will let me. Things are stiff and sore this morning.

Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 9:52 am
by Stikpusher
Strap edging looks good. Maybe some hot cocoa will warm you up. I’d suggest coffee, but then there go the straight lines…

Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 10:35 am
by LyleW
Naw, until I can thread a sewing machine while it is running, it isn't too much coffee!
Gave up on the BMF. i've spent about two hours on one tank, with 4-5 strips of foil and the stuff simply will not stick all the way around no matter how much i burnish it, how much snot is used...nothing will keep it in place. I even cleaned that edge with isopropyl alcohol.
So, I gave in, fired up the compressor, masked the strap and sprayed Molotow on it. Still have some touch-up to do...but that is on the strapping that is on the bottom of the tank. The down side is now I have to wait a couple of days to seal it, wait a couple more days...and so on.

Re: AMT (Round 2) Mack R685ST
Posted: Tue Dec 21, 2021 6:35 pm
by BlackSheep214
I’ve been hearing a lot of folks having issues with BMF as of late especially not sticking or adhering as it should. Something to do with the new adhesion.
Re: AMT (Round 2) Mack R685ST
Posted: Wed Dec 22, 2021 3:58 am
by Stuart
Re: AMT (Round 2) Mack R685ST
Posted: Wed Dec 22, 2021 7:10 am
by midnightprowler
Now I want a big rig kit lol.
Re: AMT (Round 2) Mack R685ST
Posted: Wed Dec 22, 2021 7:31 am
by LyleW
This was a Hobby Lobby buy.
So far, not a bad kit at all. A LOT of flash and seam lines...a lot. But, the plastic is a bit soft and it cleaned up pretty easily. Oddly enough, it did not take to the red tube glue as quickly as the Tamiya or Plast-I-weld ...guess they are hotter.
Parts placement can be vague on the instructions, but if you study them closely and pay attention (as I’m not usually doing) they fit fairly well. Interesting location pins, etc. different shapes for different sides.
There are a few build reviews on this kit on YouTube that highlight some gotchas.
I would do another at this point....but still a ways to go.