Originally Posted by
OddDuck
That'd solve a lot of problems with sealing seam lines. In fact that'd solve a lot of problems full stop. I hadn't heard of the dissolving polystyrene trick before, what solvent is used?.
Not to gizump Pete, but I've used acetone before, works well.
Another trick I've tried for a project I never completed is using "space invader". By making a bladder/sock in the area you want to copy/fill, making packing pieces to control clearance and then squirting space invader into the bladder/sock. Took three goes before I worked out how much to squirt in and size and location of vent holes, but it worked well eventually.
If you can't get the polystyrene out, (or in) in one piece you're not going to get the eventual laid up piece in either, so you may have to do it in 2-3 pieces and make provision to rivet/screw them together in place.
Go soothingly on the grease mud, as there lurks the skid demon
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