15 minutes (plus 1-3 hours curing time)
One of our silicone molds (photos feature our 3" Tulip Silicone Planter Mold)
Tools and Materials
- Silicone mold casting support (included with our molds)
- Casting medium
- Mixing container
- Popsicle sticks or other mixing tool
Once you have your mold, what do you do next? Here is a basic guide to help you get started.
Step 1 Preparing your materials and supplies
- Ensure that your mold is clean. You can gently wash your mold with soap and warm water.
- Collect all your materials and lay out your mold — once you mix your medium, it can start to set quickly!
- You can cast concrete, plaster, and resin.
- We are using a cement based mix here.
Step 2 Add any coloring to the liquid
- We are using a pigment liquid here but find adding coloring before the medium makes the color even.
Step 3 Mixing your medium
- Add your mix to liquid. Mix your casting medium according to the manufacturer recommendations. I like to add 50% and mix, then add the rest.
- Generally, a consistency similar to cake batter works best. Add water reducers when needed.
Step 4 Pouring your cast
- Place casting frame around mold.
- Begin pouring your mixed medium into the mold
- It can help to tap down the mold during the pouring process to help ensure there are no trapped bubbles.
Step 5 Curing
- Curing time is dependent on your mix. Many fast curing mixes will be ready to de-mold in 2 hours.
- Your item will continue curing for several days
- Optionally, to help prevent cracks and ensure consistent curing, you can wet cure your casting.
Step 6 De-molding
- Being de-molding by rolling up the bottom lip of the mold
- Grip the mold and gently squeeze while rocking and pulling out of the inside of the cast
Step 7 Sealing
Step 8 Using your cast
- Your mold is ready for use as a planter, candle, or anything else you can imagine!
- Note: if you're using your pot as a planter, your casting medium and choice of sealer can affect the soil pH. Some easy options include the use of a peat pot or other liner, or picking a sealer that creates a barrier.