Re: FOAM speed-building ►added : Loki's helmet & Guyver suit & Iron Woman◄
That's it, the dotted lines along the borders of the paper templates are here to delimitate
- the real outter side of the suit (in grey)
from
- the strip that will recieve glue and will be overlapped (in blue) by another piece of foam.
If you're using your 12mm foam, by thinning the blue area you can act like if you were working with some 6mm foam, or you can also completely remove this blue edge depending of the method you plan to assemble your foam pieces.
I've been asked if I had used some 2, 3 or 5 mm when building Sharkhead's helmet, in fact it was some 7mm foam. The illusion was due to the fact that I used several ways to snap the pieces of foam together, depending of the rendering I expected at the surface. Low, medium, heigh, and progressive step :
Gluing pieces side to side will probably be less strong, but will it be not strong enough ? I can't say. No dammage here so far.
To fill the remaining gaps, and unexpected valleys, and overall every 'factory-dammages', I don't think any sandable product can go well. Because foam is flexible, and something you can sand is not. As a result your join will keep on breaking at every bending. I've successfully tryed a simple and common alternative : the silicone bathroom mastic-glue-gun.
It sticks, it fills, it's slick and smooth, and it can be shaped. The only thing is you
must paint it or primer it with any spray you want
before it's dry, or nothing will further hold on to this stuff.