Concrete Jersey Barrier mold 1/20
thingiverse
1/20 Scale Concrete Jersey Barrier Forms Available in Different Models for Clay or Concrete. I Use 10 Shore RTV2 Silicone and the Results Are Very Nice. I Also Write Down Concrete Mix Ratios. If You Want to Make Changes, I Can Provide a SketchUp File. You Can Visit My Profile for Other Building Material Molds. Cement 6* Marble Dust 3* Grout (Tile Fill) 1* Water 4* Attention! Important! Use a Mold Release Spray Before Casting RTV2. Apply Vibration After Casting to Prevent Air Bubbles. Do Not Remove Until 24 Hours Have Passed. Apply Water with Spray Frequently. Water Is Crucial; Do Not Allow to Dry for Several Days. It Can Take Up to One Week to Harden Completely.
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