11/08/2026
Step 1 Prepare Mold
- Before mixing the concrete, make sure the mold is clean and clear of dirt;
- If it has been used before, clean it up with soapy water or a solution of citric acid;
- Simply brush a little bit of light vegetable oil or mold release in the form. Using mold release is recommended but not necessary
- Not using mold release can make the stones more difficult to demould, and you’ll need to be more careful about damaging the mold. But too much mold release will make air bubbles in the surface.
Step 2 Mix Concrete
- When mixing concrete, always wear proper safety equipment (rubber gloves and a particle mask);
- Mixing can be done with a proper concrete mixer, in a wheel barrow with a concrete hoe. or by hand with a trowel in a bucket;
- If you re mixing by hand, it’s really important to take your time and get everything completely mixed Tip;
- For preparation of concrete using high-grade cement, slag-free. Sand should not contain impurities clay. To reduce the amount of water in the solution, be sure to add the plasticizer concrete on the maximum recommended by the manufacturer. Number of plasticizer is calculated with respect to the cement. When mixing concrete, use 1 part cement, two parts sand. The solution should not be highly liquid. To check him take in his hand, he must not flow through parted fingers.
- You can watch videos in YouTube
https://www.youtube.com/watch?v=9SC_HmvAezk
Step 3 Fill Mold
- Fill bottom surface of mold with 1/2" of concrete and pat it down vigorously to drive out air bubbles;
- Then fill the mold completely to the top and smooth the top surface with your hands so the concrete is flat and level;
- Finish by tapping and shaking the mold, driving out as many air bubbles as possible.
Step 4 Cure and Demould
- After the mold is full, place the mold on a level tabletop;
- Cover with plastic film and wait less than 24 hours to cure;
- The plastic film covering the concrete will help keep the humidity inside, like a greenhouse, and this will minimize surface cracking;
- After the stone has cured then carefully pulling up gradually on all sides until it pops off.
And it's All. Your stones are ready to use !!!
