If you mold your resin, then unless you can slightly dome it in the mold, you will almost certainly get a little sharp lip or edge on the back of your cured resin pieces. In this video I will show you how I sand down that edge and then fill the back of the coaster with a little extra resin. Now the back is as smooth and finished as the front.

Materials needed:
Wet and dry sandpaper - [ Ссылка ]
A little soapy water to keep the dust down while sanding
Resin - [ Ссылка ]
Silicone mixing cups - [ Ссылка ]
Teeny tiny cups for very small amounts - [ Ссылка ]
Alcohol - [ Ссылка ]

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