High-Back Fused Silica Melting Dish Crucible | 20 oz Capacity

Safely manage larger torch-melting and casting operations with our 20 oz High-Back Fused Silica Melting Dish. This heavy-duty crucible cup is specifically engineered for jewelers, metalsmiths, and scrap refiners who need a reliable vessel for pouring substantial amounts of precious metals.

Featuring an asymmetrical, high-back profile, this dish maximizes heat efficiency while providing critical protection against hazardous splashes during manual torch work.

Key Features & Benefits

• Upgraded High-Back Safety Wall: The elongated rear wall fulfills a crucial dual role. It serves as a protective heat shield that reflects torch energy directly back down onto your metal, accelerating melt times and lowering gas consumption. Additionally, it prevents accidental backward spillage or hazardous popping splashes when handling molten metal.
• Premium Fused Silica Composition: Bound with a specialized high-grade clay bond, this dish offers unmatched thermal shock resistance. It easily handles intense, rapid temperature shifts from cold starting points to roaring torch flames without cracking, spalling, or introducing impurities into your melt.
• Heavy-Duty 20 oz Volume: Designed to comfortably accommodate up to 20 troy ounces (approx. 620 grams) of gold, silver, sterling, copper, brass, or bronze. It is the perfect size for larger ingot pours, flask casting, and scrap metal recovery.
• Precision Pouring Groove: Features a cleanly sculpted front spout that facilitates a smooth, tight, predictable stream of liquid metal, minimizing spill risks and ensuring precision alignment with your ingot molds.

Specifications

• Style: High-Back / Hooded Back Melting Cup
• Capacity: 20 Troy Ounces (approx. 622 Grams based on precious metal volume)
• Material: High-Purity Fused Silica (Clay-Bonded)
• Temperature Rating: Intended for heavy-duty torch work up to 2,500°F (1,371°C)
• Compatible Metals: Gold, Silver, Brass, Copper, Bronze, and other non-ferrous alloys.

Crucible Seasoning Instructions: For maximum service life and clean metal release, always preheat your new silica dish slowly before its first heavy use. While warm, coat the interior surface with a light glaze of Borax powder. This creates a slick barrier that improves metal flow and helps prevent boring or erosion into the silica bed over time.

Engineered for Large-Scale Torch Work

When you scale up your melting volume to 20 ounces, standard shallow casting dishes become a safety hazard and a bottleneck for heat loss. The deep-welled, high-back engineering of this silica crucible traps intense heat around the metal payload, ensuring a thorough, uniform melt even when using larger multi-orifice torch tips. It is an indispensable, studio-grade tool built for professional metal casting benches and high-volume refiners.