I’m trying to fill knotholes and such with different methods. I’ve seen the beautiful turquoise and metallic fills that just take my breath away. I believe I might be able to do those with the right materials. I will say that some of the work to make my own copper shavings is out of the cards. Turquoise fill is far more likely. Any metallic dust will be purchased.
Still I choose to experiment instead of going with the tried and true methods. Here is my first.
I used the following technique. Surrounded hole with high quality painters tape. Filled hole with air dry molding clay. Left the clay shy of the top by at least 1\8 inch. Left 36 hours to dry. Painted clay with copper metallic acrylic paint. Made certain there were no brush marks or runs in paint. Waited 3 hours for paint to dry. Filled last 1\8 inch with gorilla 2 part epoxy. Allowed to cure for 24 hours. Sanded with painters tape intact to 150. Removed remaining tape. Sanded 220 then 320 with ROS. Hand sanded epoxy with 600 then 1500 grit.
Its an interesting effect but the sanding made the epoxy virtually transparent. It made the copper fill look shallow instead.
Next time I’ll try sanding dust and epoxy fill. I don’t want it to look like plastic but I just have to see the results.
Thanks for looking.
-- Thanks for all the lessons!