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Master Alloys

Master alloys are the metal you combine with fine gold or fine silver to reach a working karat or .925 sterling. None of them contains gold. Otto Frei stocks yellow, white, and pink rose alloys for investment casting and for fabrication, several formulated for stone in place work, plus copper and brass casting grain and a manganese bronze casting alloy. Most are sold by the troy ounce, 20 pennyweights.

Filtri

2 Ounce Pack-Re-Cast-It Gold Alloy Refresher-Replenisher

Otto Frei
Part # 122.607
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.75
$26.75 - $26.75
Prezzo attuale $26.75

Re-Cast-It is an alloy additive designed for recasting old or scrap yellow gold. It does not contain gold and is not a substitute for gold, but whe...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.75
$26.75 - $26.75
Prezzo attuale $26.75

Dark Yellow 9-14 Investment Casting Master Alloy For Stone In Place Casting-Per Troy Ounce (20 DWT)

Otto Frei
Part # 846-128
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.90
$26.90 - $26.90
Prezzo attuale $26.90

This Dark Yellow Investment Casting Master Alloy is formulated for alloying with pure gold to produce 9K to 14K casting alloy, with specific perfor...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.90
$26.90 - $26.90
Prezzo attuale $26.90

Standard Yellow 9-14 Investment Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-132
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.75
$26.75 - $26.75
Prezzo attuale $26.75

A reliable, professional-grade investment casting master alloy formulated to produce a darker yellow tone ideal for 10K–14K gold alloying. This all...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$26.75
$26.75 - $26.75
Prezzo attuale $26.75

Rich Yellow 18-22 Investment Casting & Fabricating Master Alloy-Suitable for Granulation-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-175ND
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$91.30
$91.30 - $91.30
Prezzo attuale $91.30

This rich, deep yellow master alloy is specially formulated for jewelers working in 18K–22K gold fabrication and investment casting. Designed with ...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$91.30
$91.30 - $91.30
Prezzo attuale $91.30

Rich Yellow 18-22 Investment Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-175
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$72.98
$72.98 - $72.98
Prezzo attuale $72.98

Rich Yellow 18–22 Investment Casting Master Alloy delivers a deep, rich yellow color in the classic European style. Featuring a smooth surface and ...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$72.98
$72.98 - $72.98
Prezzo attuale $72.98

Rich Yellow 9-14 Investment Casting Stone-In-Place-Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-158
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$39.80
$39.80 - $39.80
Prezzo attuale $39.80

Rich Yellow Stone-in-Place Investment Casting Master Alloy is formulated for jewelers who require a high-reusability, tarnish-resistant alloy suita...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$39.80
$39.80 - $39.80
Prezzo attuale $39.80

Light Yellow 9-14 Investment Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-134
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$30.75
$30.75 - $30.75
Prezzo attuale $30.75

A popular all-around investment casting master alloy formulated for producing 9–14k gold. This alloy contains more silver than comparable formulati...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$30.75
$30.75 - $30.75
Prezzo attuale $30.75

Standard Yellow 14-18 Fabrication & Enameling Master Alloy-No Zinc

Otto Frei
Part # 846-180
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$86.65
$86.65 - $86.65
Prezzo attuale $86.65

This standard yellow master alloy is formulated for 14K and 18K gold fabrication and for glass enameling applications. Because it contains no zinc,...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$86.65
$86.65 - $86.65
Prezzo attuale $86.65

Green Yellow 9-18 Investment Casting Master Alloy Per Troy Ounce

Otto Frei
Part # 846-184
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$119.00
$119.00 - $119.00
Prezzo attuale $119.00

This master alloy produces a distinctive green-yellow shade of gold thanks to its very high silver content. Formulated for investment casting, it d...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$119.00
$119.00 - $119.00
Prezzo attuale $119.00

Brass Casting Grain-Sold by the Troy Ounce

Otto Frei
Part # 846-91
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$5.31
$5.31 - $5.31
Prezzo attuale $5.31

An ideal choice for sample lines and production casting, this brass casting grain is a clean two-component alloy of copper and zinc — nothing else....

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$5.31
$5.31 - $5.31
Prezzo attuale $5.31

Copper Casting Grain

Otto Frei
Part # 846-90
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$4.10
$4.10 - $4.10
Prezzo attuale $4.10

This hard-to-find .999 pure copper casting grain is used for alloying with gold and silver. High-purity copper ensures consistent, repeatable resul...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$4.10
$4.10 - $4.10
Prezzo attuale $4.10

Ultra White 9-18 Investment Casting Master Alloy

Otto Frei
Part # 846-140
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$9.35
$9.35 - $9.35
Prezzo attuale $9.35

The Ultra White 9–18 Investment Casting Master Alloy is a nickel-based white gold master alloy formulated for investment casting and fabrication ap...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$9.35
$9.35 - $9.35
Prezzo attuale $9.35

Ultra White 14-18 Fabrication Master Alloy Per Troy Ounce

Otto Frei
Part # 846-141
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$10.73
$10.73 - $10.73
Prezzo attuale $10.73

Ultra White is a nickel-based fabrication master alloy designed for making 14K and 18K white gold alloys. It offers high tensile strength and conta...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$10.73
$10.73 - $10.73
Prezzo attuale $10.73

Ultra White For Making 10-18 White Multi-Purpose Alloy-Per Troy Ounce (20 DWT)

Otto Frei
Part # 846-103
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.50
$8.50 - $8.50
Prezzo attuale $8.50

This ultra white fabrication alloy is nickel-based and contains no gold and no silver. Designed as a multi-purpose master alloy for both casting an...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.50
$8.50 - $8.50
Prezzo attuale $8.50

White 9-18 Investment Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-100
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$7.74
$7.74 - $7.74
Prezzo attuale $7.74

This nickel-based white master alloy — previously called White Century — is formulated for investment casting and fabrication of 9K–18K white gold....

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$7.74
$7.74 - $7.74
Prezzo attuale $7.74

Dark Pink Rose 9-18K Fabrication Rolling Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-151ND
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$19.75
$19.75 - $19.75
Prezzo attuale $19.75

Copper gives rose and pink gold alloys their characteristic warm hue, but it also reduces workability — making setting and fabrication more challen...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$19.75
$19.75 - $19.75
Prezzo attuale $19.75

Dark Pink-Rose 9-18 All Purpose Master Alloy-Sold By the Troy Ounce (20DWT)

Otto Frei
Part # 846-150
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$17.95
$17.95 - $17.95
Prezzo attuale $17.95

The Dark Pink-Rose 9–18 All Purpose Master Alloy is a professional-grade casting and fabrication alloy designed for jewelers working across a wide ...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$17.95
$17.95 - $17.95
Prezzo attuale $17.95

Pink Solder Alloys-For Making 18K Pink Solder-Easy, Medium & Hard

Otto Frei
Part # Varies
Prezzo originale $21.40 - Prezzo originale $24.20
Prezzo originale
$21.40 - $24.20
$21.40 - $24.20
Prezzo attuale $21.40

These solder alloys are formulated to allow jewelers to make their own 18K pink solder in-house. These alloys contain no gold. To achieve 18K gold,...

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Prezzo originale $21.40 - Prezzo originale $24.20
Prezzo originale
$21.40 - $24.20
$21.40 - $24.20
Prezzo attuale $21.40

Manganese Bronze Casting Alloy by the Pound

Otto Frei
Part # 143.301
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$28.50
$28.50 - $28.50
Prezzo attuale $28.50

Jewelers Manganese Bronze is a casting alloy developed to provide jewelry casters with a base metal suitable for both centrifugal and vacuum castin...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$28.50
$28.50 - $28.50
Prezzo attuale $28.50

Ultra Rich Reddish Yellow 9-14 Investment Casting Stone In Place Master Alloy-Contains No Gold Per Troy Ounce (20 DWT)

Otto Frei
Part # 846-101U
Prezzo originale $39.50 - Prezzo originale $39.50
Prezzo originale
$39.50
$39.50 - $39.50
Prezzo attuale $39.50

The Ultra Rich Reddish Yellow Master Alloy is a high-performance investment casting alloy engineered for stone-in-place casting applications. Part ...

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Prezzo originale $39.50 - Prezzo originale $39.50
Prezzo originale
$39.50
$39.50 - $39.50
Prezzo attuale $39.50

Bright Yellow 9-14 Investment Casting Master Alloy-Contains No Gold Per Troy Ounce (20 DWT)

Otto Frei
Part # 846-200
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$24.20
$24.20 - $24.20
Prezzo attuale $24.20

This bright yellow master alloy is formulated for investment casting and open torch melting, producing a vivid yellow color when alloyed with fine ...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$24.20
$24.20 - $24.20
Prezzo attuale $24.20

European Greenish Yellow 9-14 Investment Casting Master Alloy-Contains No Gold Per Troy Ounce (20 DWT)

Otto Frei
Part # 846-264
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$46.50
$46.50 - $46.50
Prezzo attuale $46.50

This European-shade master alloy is formulated for investment casting and delivers a distinctive greenish yellow color when alloyed with fine gold ...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$46.50
$46.50 - $46.50
Prezzo attuale $46.50

Deep Yellow 18 Casting Master Alloy-Sold Per Troy Ounce (20DWT)

Otto Frei
Part # 846-790
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$65.30
$65.30 - $65.30
Prezzo attuale $65.30

The Deep Yellow 790 Casting Master Alloy delivers a deep, rich yellow color with a European style finish. Formulated specifically as an 18K casting...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$65.30
$65.30 - $65.30
Prezzo attuale $65.30

Greenish Yellow 18 Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-760
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$103.66
$103.66 - $103.66
Prezzo attuale $103.66

This Greenish Yellow 18K Casting Master Alloy delivers a distinctive European-style greenish yellow color with the highest silver content of all 18...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$103.66
$103.66 - $103.66
Prezzo attuale $103.66

Premium Pink 9-14 Casting Master Alloy-Sold Per Troy Ounce (20DWT)

Otto Frei
Part # 846-540
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$16.40
$16.40 - $16.40
Prezzo attuale $16.40

Premium Pink 9–14K Casting Master Alloy is formulated for jewelers and casters who demand a rich, consistent pink color result in gold alloys rangi...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$16.40
$16.40 - $16.40
Prezzo attuale $16.40

All Purpose Pink 9-18 Casting/Fabricating Master Alloy-Sold Per Troy Ounce (20DWT)

Otto Frei
Part # 846-548
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$16.95
$16.95 - $16.95
Prezzo attuale $16.95

All Purpose Pink 9–18 Casting & Fabricating Master Alloy is a versatile master alloy formulated to cover a wide range of duties in both casting...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$16.95
$16.95 - $16.95
Prezzo attuale $16.95

Sterling-Classic White Alloy

Otto Frei
Part # 846-588
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.54
$8.54 - $8.54
Prezzo attuale $8.54

A general-purpose master alloy for alloying with pure silver to produce .925 sterling silver. Sterling-Classic White Alloy delivers a classic white...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.54
$8.54 - $8.54
Prezzo attuale $8.54

Sterling-Super White Alloy

Otto Frei
Part # 846-597N
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$11.74
$11.74 - $11.74
Prezzo attuale $11.74

Sterling-Super White Alloy is a general-purpose master alloy designed for alloying with pure silver to produce .925 sterling silver. Suitable for b...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$11.74
$11.74 - $11.74
Prezzo attuale $11.74
Esaurito

Ultra White 9K-18K Stone-In-Place Nickel Alloy

Otto Frei
Part # 846-982
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$39.05
$39.05 - $39.05
Prezzo attuale $39.05

Ultra White 9K–18K Stone-In-Place Investment Casting Master Alloy is formulated for excellent fluidity during casting and fabrication applications....

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$39.05
$39.05 - $39.05
Prezzo attuale $39.05

Premium White 9-18 Silicon Free Casting Master Alloy-Per Troy Ounce (20DWT)

Otto Frei
Part # 846-900
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.60
$8.60 - $8.60
Prezzo attuale $8.60

Premium White 9–18 Silicon Free Casting Master Alloy is a professional-grade white gold master alloy formulated for both casting and fabrication ap...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$8.60
$8.60 - $8.60
Prezzo attuale $8.60