Rain Forest Leaf Mold

The Rain Forest Leaf mold from Colour de Verre casts one large leaf per firing, measuring 8 inches by 4 inches (20 by 10 cm). The shape draws on the ti plant of Hawaii and the South Pacific islands. The mold itself is 9.75 inches long by 6 inches wide by 1.5 inches deep (25 by 15 by 4 cm) and takes 120 to 130 grams of glass to fill.

An integrated slumping surface on the back of the mold lets you shape the cast leaf into a functional hors d'oeuvre or dessert plate without a separate slump mold. For more dramatic curves, the leaf pairs well with a Square Sushi Slumper or a 7-10 Bowl Slump Form. You can also cast several leaves, tack them together, and slump them as a group to create larger decorative platters.

What does the Rain Forest Leaf mold make?
It casts one leaf per firing, 8 inches by 4 inches (20 by 10 cm), in the shape of a ti plant leaf from Hawaii and the South Pacific. The finished piece is large enough to stand alone as a display piece or serve as the starting point for a functional plate.

Can I shape the cast leaf into a plate?
Yes. The mold includes an integrated slumping surface on the back, so you can curve the fired leaf into a hors d'oeuvre or dessert plate in a follow-up slump firing.

Can I combine multiple leaves into a platter?
Yes. Cast three, five, or more leaves individually, tack them together, and slump the group. A Square Sushi Slumper or 7-10 Bowl Slump Form can support deeper curves during the slump step.

What COE glass can I use in this mold?
Any COE. Ceramic casting molds are COE agnostic, so this mold works with COE96, COE90, or other fusible glass. Match your firing schedule to the glass you are using.

How much glass do I need?
Colour de Verre lists 120 to 130 grams per firing for this mold. Weigh your glass and test a first run when the result matters.

How do I prep the mold before casting?
Prime the mold before every use with a boron nitride primer. Colour de Verre recommends ZYP BN Lubricoat or Hotline Primo Primer. Let the primer dry completely before adding glass so the cast piece releases cleanly.

Specifications

• SKU: 181867
• Manufacturer: Colour de Verre
• Makes: 1 large leaf
• Finished piece size: 8 x 4 inches (20 x 10 cm)
• Mold size: 9.75 inches L x 6 inches W x 1.5 inches deep (25 x 15 x 4 cm)
• Suggested fill weight: 120 to 130 grams
• Features: integrated slumping surface on back
• Material: ceramic kiln casting mold, reusable
• Glass: any COE (COE agnostic)

Working Notes

These are guidelines, not guarantees. Every kiln fires a little differently, so test a small run first when the result matters and follow a casting schedule suited to your glass and kiln.

• Prime the mold before every use. Colour de Verre recommends ZYP Boron Nitride Mold Primer or Hotline Primo Primer. Let the primer dry completely before adding glass.
• Fill the cavity with 120 to 130 grams of frit, small billets, or stacked sheet scrap.
• The mold is COE agnostic. Use a fuse schedule matched to your glass, and adjust the anneal soak temperature for your COE.
• Let the kiln cool fully before removing the cast leaf. Re-prime the mold before each subsequent firing.
• Once cast, the integrated slumping surface on the back allows shaping the leaf into a plate in a follow-up slump firing. A Square Sushi Slumper or 7-10 Bowl Slump Form can support deeper curves.
• To make a larger platter, tack fire several cast leaves together, then slump them as a unit.

Colour de Verre Suggested Firing Schedule

This is a suggested starting schedule based on Colour de Verre's general guidance, not a guarantee. Every kiln fires differently. Follow the Colour de Verre project sheet for this mold and test a small run first before committing to a final piece.

• Heat no faster than about 350 F (195 C) per hour through the heat-up phase.
• Fire to no higher than about 1450 F (785 C) at the top temperature.
• Hold briefly at top temperature, then drop to an anneal soak: about 950 F for COE96, or about 900 F for COE90.
• Cool slowly and in a controlled manner from the anneal soak to room temperature before opening the kiln.

Helpful downloads: Priming with ZYP Spray (PDF) · Tricks of the Trade (PDF)

Description updated: July 6, 2026

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