- Member since
November 2012
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Posted by dioramator
on Sunday, August 30, 2009 8:39 AM
I don't know about a tutorial, but I could give you a couple of tips if you are thinking of finishing your build in al-foil. This is my first attempt at doing this, and this is what I have picked up so far. I bought the tin of gold leaf adhesive from the art-shop, $20 (Au) for 8 fl oz. Al-foil from the supermarket, the cheapo stuff is marginally thinner than the expensive brand, which makes it a little easier to form (and the embossing is shallower). - I used a paper guillotine to cut the foil into various sizes and strips (makes a nice clean cut with a straight edge)
- It is important that the dull side of the foil is immaculately clean (untouched by skin) where the adhesive is to be applied to, wear cotton gloves when handling and cutting the foil prior to gluing (any contact with the skin will leave a residue that the adhesive will not stick to).
- Using a soft wide brush, apply the adhesive to the dull side of the foil. Make the layer as thin as humanly possible, (you will find you can get it so thin there are no brush strokes). *brush strokes if left in the adhesive will show up on the finished product. And strictly use only one coat of adhesive.
- If you find the adhesive backing away in an area, the foil has been touched and will not adhere (to that area) properly, ditch that piece of foil.
- I applied adhesive toabout 10 - 15 pieces of foil at a time, by the time I finished the last piece, the first ones were dry enough to use. The foil is now pressure sensitive.
- The model surface must also be immaculately clean, I wiped it down with alcohol, then dried it with a lint free rag.
- "The best way to show up a defect in a model is to paint it silver"... or cover it in foil. Be very particular to seams, gaps and runner tabs.
- Covering a group of, or individual panels; line up two of the foil edges with the rows of rivets, top and side (just past the panel edge), the rivet line will mask the edge line of the foil. Using a cotton tip slowly work the foil down. Then burnish the foil down with the edge of a toothpick (not the tip)
- Work across the center and then out to the edges of the panel, then the end of the panel, and finally into the panel line.
- Trim/ score the foil along the panel line, and remove excess foil by peeling away. (Don't burnish past the panel edge).
- When you get to the edge of the wings, pull tension on the foil, and trim it with a sharp blade, allow a little overlap. Burnish down using a finger or a cotton tip to about 2/3 the arc of the lead edge. Use a fine file to trim across the foil at the edge of the wing... and remove excess.
- On the other side of the wing overlap the existing foil (2/3 the arc of the lead edge) and trim to size with a blade and burnish down with a toothpick. (This foil edge will burnish down in a later step.)
- Curves, "a two dimensional medium being applied to a three dimensional object". Always start working the foil from the highest part of the surface when possible.
- Never allow the foil to burst from overstretching (the edge will crinkle), cut it to release pressure. A patch is easier to deal with than a crinkle edge.
- If hills start forming while pushing down the foil, push along into them (to flatten them out) with a toothpick
- Shallow depressions should be rolled from the outer edge toward the center with a cotton tip. (stretch the foil down)
- air trapped under the foil should be evacuated by piercing the foil, and working the air out of the hole.
- I found it easy to fill gaps in panels fitted after they had been foiled, by filling with water based fine wood filler, it can be shaped with your finger, and rubbed back with a damp cotton tip. Then apply a strip patch of foil over it once it has totally dried.
- Burnish with superfine steel wool 0000, (not the regular household stuff), in the direction of travel. Use it to blend any edge lines.
- When it's all together, give an all over buff with steelwool (wearing cotton gloves), and wipe it down with alcohol to get rid of any fingerprints and residue adhesive.
And that's all I am up to at this point in time. Next step is to apply a coat of future, and lay down some decals, but that's another story. Brett
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