Download video: How to cast concrete stone mold without additives. In-mold coloring.
Channel: GlobMarble Inc
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Use premixed concrete products if you are not confident in your ability to measure the basic materials.Add water carefully. Use the minimum amount of water possible while still keeping the mixture workable. The less water used, the stronger the dried, finishing product will be.
As an option you can use concrete water reducer. Water reducer available in our web store.
Finished product image : http://globmarble.com/online-store/images/detailed/1/IMG_2185.jpg