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October 4, 2013 at 2:53 am #1648MarciaGuest
Thanks Katherine, I polish by hand. Need to get a bench polisher.I jyst tried sanding under water. Perfect.
October 4, 2013 at 8:31 am #1646Katherine SwiftGuest
I use polyester casting resin here in Hawaii, cant get your product here. I cast bangle bracelets using your molds. They turn out perfect, clear, hard, glossy,
beautiful. BUT, the top surface is always very slightly tacky. when I sand them they look a little gunked up, like the sand is going into the resin. I use a wet sandpaper starting with 300 grit on down to 1500.
I polish with polishing compound till I am literally exhausted. Still cant get them really glossy. What am I doing wrong?
I dont cover the castings after they are poured, could that be the problem? Can I paint a layer of resin over the complete piece? I tried different types of spray shellac etc. Didnt work, gunked them up. I end up sanding the complete piece because of scratches that i cant help. I embed tiny pieces of fan coral in with seashells and they always scratch the mold, thus sand the whole piece.
Sure would would appreciate your help.
October 4, 2013 at 8:38 am #1647Katherine SwiftGuest
Heres a few of my thoughts:
Wet sandpaper to get off the sticky side is good, but I would take it even further by sanding the piece underwater. An old cookie sheet with sides works well for this.
What kind of polishing compound are you using? I like using Fabulustre with a cotton wheel. Are you using a polishing cabinet or a dremel tool? I dont think a dremel tool works as well to get a high polish on polyester castings.
Hope this helps. 🙂
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