The next step consists in making urethane rubber and pouring it into the silicone mold. This is the tricky part...
For this step you will need:
* Parts A and B of your chosen `Clear Flex' product.
* green `So Strong' dye.
* a cup and a tool to mix the urethane. It is highly suggested you use disposable cups because cleaning the clear flex residue is very difficult.
* your silicone mold.
* a syringe (or micropipette).
* a scale. You can also use anything to measure volumes.
* protection gloves.
* a vacuum chamber coupled with a vacuum pump going as low as 0.98 bar (9 inches of mercury).
* a piece of fishing wire or any very thin wire.
* Parts A and B of your chosen 'Clear Flex' product.
* green 'So Strong' dye.
* a cup and a tool to mix the urethane. It is highly suggested you use disposable cups because cleaning the clear flex residue is very difficult.
* your silicone mold.
* a syringe (or micropipette).
* a scale. You can also use anything to measure volumes.
* protection gloves.
* a vacuum chamber coupled with a vacuum pump going as low as 0.98 bar (9 inches of mercury).
* a piece of fishing wire or any very thin wire.
Here again, you can find all the safety and processing recommendations for Clear Flex [here](https://www.smooth-on.com/tb/files/CLEAR_FLEX_30_TB.pdf). Remember to check this first.
