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While the Meng does have the Anti-Skid/Slip texture molded into the hull and turret it seems a bit understated when compared to the real deal. Not sure what I'll do with it...if anything.
My 2-cents worth:
What I will do in replicating "non-slip" is, rather than doing all kinds of complicated stuff like applying some sort of adhesive, then strewing "grit" on that, overlaid with rough primer-coats and "what-have-you", and then sanding it all down, re-priming and then having to go through the whole rigamarole all over again, is this:
First I mask off the areas that are supposed to get the "non-slip". Then, I just get hold of one of my cheap-ass TESTORS nylon paint brushes, and then I quickly "dab" the respective surfaces of the model that is supposed to have the "non-slip" surfaces with a very small amount of TESTORS Liquid Cement for STYRENE. (Hint: The TESTORS Liquid Cement costs about HALF of TAMIYA's, and does the same job).
I remove the masking tape while the just-dabbed "non-slip" surface is still sort of tacky-wet, in order to prevent any "unpleasantness" later. If any of the cement has "seeped" under the masking tape, it's no big deal to sand the marred plastic surface, after having masked the "non-slip" surface after it has completely dried, so as to preserve the "non-slip's" "straight edges"... One can also use GUNZE Primer, but that stuff is on the expensive side, too... NOTE: PRACTICE on an old piece of junk first, in order to get your "hand"...
OK, call me "cheap"; I prefer to call myself "frugal"...
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I like using this method as the "non-slip" surfaces will then not look "over-stated", as to "scale-effect"...
IF the model in question ALREADY HAS "non-slip" molded on the plastic surfaces, I LEAVE IT WELL-ENOUGH ALONE. Why stick your head in a bee-hive..?
Works for ME, anyway...