Stronger than concrete, Circular11's recycled plastic bricks were revolutionary ... The company would heat up plastic before pumping the liquid into molds. In a Brothers Make YouTube video, co-founder ...

I then used mold star 30from smooth-on to make silicone ... There are only 3 different pieces needed to make this above ground concrete planter. Each concrete module can be easily moved and ...

With some vibration, you can fill the entire cavity with cement. The next day, it was possible to destroy the alginate mold and recover the cement object inside. However, the cement will still be ...