Time Required: 1-2 hours + 2 days to cure
Weight: 4-6 pounds
Plastic Popcorn Form ($1 section at Target)
Sacked Concrete Mix - NON-Aerated, 5000 psi is ideal (one 60lb bag will produce about 12 of these forms)
CHENG Pro-Formula Mix (1 cubic foot box per two 60lb bags)
Styrofoam (small scrap pieces)
Wood (.5" thick)
2 Part Epoxy
Clear Packing Tape
Hand Saw (Japanese style with fine / medium teeth)
Razor Blade / Utility Knife
Sand Paper / Handheld Diamond Polishing Pad
Slotted Screw Driver / Phillips Screw Driver
1/16" drill bit
Silicone (100% silicone, window and door sealant)
Buckets for Mixing
Step 1: Measure, Mark + Cut the Concrete Form
1.2 To help support the plastic container while cutting, cut a styrofoam block ( about 3¾" x 3¾" ) and push it in the opening of the form.
1.3 Starting from one corner, gently saw back and forth to start a straight cut. Go slowly at first, alternating back and forth between corners until you can connect the slices and cut through. Repeat on the remaining sides until the cut is complete.
1.4 Clean up the edges of the plastic with some rough sand paper ( 80-100 grit ) and be careful not to scratch the inside of the form (any scratches WILL be transferred to the concrete).