I have a 4 inch mad cow patriot kit and it has a plastic nose cone. I had to add 100 grams of lead to nose and glued it in with gorilla glue polyurethane glue. I then inserted three screws into the glue and lead. The screws are countersink and I would like to fill this in to smooth it out. What do I use for a filler? Anything I have tried, falls out after it dries. I might add that the nose cone is very thick and looks like nylon. Very slippery. Thank you for any ideas you might have.
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