Tutorial:
Preparation is always key to a successful project. Make sure you have read the instructions and have all of your materials ready.
The rule is to mix equal amounts or a 1:1 ratio of resin and hardener. Take your mixing stick and stir thoroughly, making sure to scrape the bottom and sides of the cup, which helps reduce the number of bubbles.
Choose what you would like to embed into your resin. The easiest option is to make the top of the coaster the side which is facing you. You can easily see what you are doing, as you embed the items facing up.
Once you have mixed and added color, you can pour your resin into your mold. When embedding items, you will first add a thin layer, covering about 1/8 of an inch. You then add your object.
When you have done pouring your resin, you can leave it to cure. The resin can be handled at about 24 hours, but to cure completely, leave for at least 48 hours.
The silicone molds do not usually pose any problems and the cured resin should pop out perfectly. Using a mold release product also helps with demolding and extends the life of your mold.
The resin piece in most cases will have a glossy surface after casting. You can easily use fine-grain sandpaper and wet sand the item. You might even be able to leave out the sanding part and only use a resin polish.