Round Tabletop and Base
FOUR: TABLETOP FORMING
Video Overview
See how to create a mold for a 48-inch-diameter tabletop. First, a template is traced onto a sheet of melamine. Then, a curved form system is attached to the melamine with spray adhesive. Next a wall liner is attached to the forms to ensure a smooth edge. Finally, a knockout for an umbrella hole is created with a PVC pipe. With the form complete, the table is now ready for casting
What You’ll Need
- 100% Door and Window Silicone Caulk
- CHENG Corner and Seam-Shaping Tools
- Caulking Gun
- CHENG Pro-Form Curved Wall Forms
- CHENG Pro-Form Wall Liners
- 3/4″ Melamine
- 3M Super 77 Spray Adhesive
- Umbrella Knockout (PVC pipe, foam, clear tape, drywall screw, fender washer)
Step 1 – Work from a Template
Step 2 – Curved Form Walls
Step 3 – Complete the Form
Previous: Table Base Casting![Round Concrete Tabletop and Base - Table Base Casting | CHENG Concrete Exchange](https://www.concreteexchange.com/wp-content/uploads/2014/08/fiber-reinforced-concrete-table-base-casting-step-1-1.jpg)
![Round Concrete Tabletop and Base - Table Base Casting | CHENG Concrete Exchange](https://www.concreteexchange.com/wp-content/uploads/2014/08/fiber-reinforced-concrete-table-base-casting-step-1-1.jpg)
Glass fiber scrim and fiber reinforced concrete backer mix is used to “stitch” the two halves of the table base form while the concrete is still pliable.
Next: Tabletop Casting![Round Concrete Tabletop and Base - Tabletop Spraying | CHENG Concrete Exchange](https://www.concreteexchange.com/wp-content/uploads/2014/08/fiber-reinforced-concrete-table-tabletop-spraying-step-2.jpg)
![Round Concrete Tabletop and Base - Tabletop Spraying | CHENG Concrete Exchange](https://www.concreteexchange.com/wp-content/uploads/2014/08/fiber-reinforced-concrete-table-tabletop-spraying-step-2.jpg)
A flowable fiber reinforced concrete mix is initially sprayed into the form before a stiffer backing mix is placed as structural reinforcement.