Rock Shot Products R98 Casting Pewter Alloy – Premium Detail Casting Metal
Rock Shot ProductsEngineered for detail. Built for results.
Rock Shot Products R98 Casting Alloy Pewter is a premium casting metal formulated for clean fills, sharp detail, and consistent performance. With a carefully balanced composition of 98% tin, 1.5% bismuth, and 0.5% copper, this alloy is ideal for casters who demand precision without defects.
Why R98 Pewter Performs
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98% Tin Base – Clean, high-quality casting metal
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Bismuth-Enhanced Flow – Reduces shrinkage, improves fine detail
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Copper Addition – Adds strength and durability
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Excellent Mold Fill – Captures intricate features with ease
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Reliable, Repeatable Results – Built for serious casting work
Ideal For
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Fine detail castings
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Jewelry and decorative items
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Figurines and small molds
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Prototype and precision parts
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Custom metal casting projects
Alloy Composition
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Tin (Sn): ~98%
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Bismuth (Bi): ~1.5%
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Copper (Cu): ~0.5%
Working Temperatures
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Melting Range: 466°F – 590°F
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Pouring Temp: Above melt range for optimal flow
Ingot Size
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Approx. 1 lb ingots (± tolerance)
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Easy to handle, melt, and portion
Built for Detail Casting
The addition of bismuth is what sets this alloy apart — helping minimize shrinkage and allowing your castings to hold sharper edges and finer detail compared to standard pewter blends. If you're looking to buy casting pewter alloy for fine detail work, R98 delivers the performance serious casters rely on.
The Bottom Line
If your castings demand precision, consistency, and clean results, R98 Casting Pewter is the alloy that delivers.