RCHeliguy
Premium
The mold set for about 14 hours. It asked for 12.
The blank came out pretty easily.
Because the Delrin released as easily as it did, I decided to go ahead and pour the epoxy with the black mica powder on my first try. I spent a couple minutes flicking the sides of the mold with my finger to try to release any bubbles. The top looks pretty smooth now.
The package says 36 to 72 hours to cure depending on the pour size. Since it allows for up to 2 inch thick pours and this is only 3/4" thick, I may see how it does in 48 hours. If it looks good, I'll pour a second copy immediately and start testing the first for durability. Epoxy typically gets stronger for a few days after it sets. I'll need to sand the back flat which is the open side of this mold.
The blank came out pretty easily.
Because the Delrin released as easily as it did, I decided to go ahead and pour the epoxy with the black mica powder on my first try. I spent a couple minutes flicking the sides of the mold with my finger to try to release any bubbles. The top looks pretty smooth now.
The package says 36 to 72 hours to cure depending on the pour size. Since it allows for up to 2 inch thick pours and this is only 3/4" thick, I may see how it does in 48 hours. If it looks good, I'll pour a second copy immediately and start testing the first for durability. Epoxy typically gets stronger for a few days after it sets. I'll need to sand the back flat which is the open side of this mold.
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