Alloys & Solders
Filters
Silver Wire Solders-Extra Easy, Easy, Med & Hard-1/4 Oz. Coils
Otto FreiSilver wire solder feeds a joint by the inch, which suits pick soldering and any seam where a measured length of solder beats a cut chip. Choose fr...
View full detailsSilver Sheet Solders-Extra Soft, Soft, Med, Med Hard & Hard-1/4 Oz. Sheets
HarmonySilver sheet solder is cut to size at the bench for hard (torch) soldering and brazing of silver jewelry and metalwork. Each Harmony sheet weighs a...
View full detailsSilver Paste Solders-Extra Easy,Easy, Medium & Hard
Otto Frei5.0 / 5.0
4 Reviews
Silver paste solder puts a measured bead of flux-mixed solder exactly where the joint needs it, so torch work at the bench stays clean and repeatab...
View full details10K, 14K & 18K Otto Frei High Karat Yellow Gold Repair Solders
Otto Frei5.0 / 5.0
1 Review
Hi-karat yellow gold repair solders give the bench a clean, color-matched joint on gold repair work, supplied in sheet form so you can cut paillons...
View full detailsSilver Wire Solder Kit
Otto FreiSilver wire solder for joining silver at the bench, supplied as a three grade sampler so one package covers both fabrication and repair. The kit of...
View full detailsGold Plumb Solders – Otto Frei Yellow Gold Plumb Solders, 14K & 18K
Otto Frei3.5 / 5.0
2 Reviews
Reach for a plumb gold solder when a seam has to carry the same karat as the metal around it. These yellow gold plumb solders are made to the plumb...
View full detailsMedium Clipped Silver Solder - 1/2 Oz Packs
Otto FreiPre-cut solder chips take the measuring and snipping out of the job, so a joint gets the same amount of solder every time. These medium silver sold...
View full detailsHard Clipped Silver Solder - 1/2 Oz Packs
Otto FreiPre-cut hard flow silver solder for bench soldering, supplied in convenient 1/2 Troy Ounce (10 DWT) packs. Each piece is pre-cut to .040" × .040" (...
View full details10K, 14K, 18K & 20K Otto Frei High Karat White Gold Repair Solders
Otto FreiRepair soldering requires an alloy that flows below the karat of the piece in hand while still matching its color, which is the job these sheets ar...
View full detailsEasy Clipped Silver Solder-1/2 Oz. Packs
Otto Frei5.0 / 5.0
1 Review
Pre-clipped easy flow silver solder lets you place a piece and go straight to the joint, without stopping to cut solder strip at the bench. Each pi...
View full detailsSilver Sheet Solder Eutectic Zinc-Free for Enameling
Otto Frei5.0 / 5.0
2 Reviews
Zinc-free eutectic silver solder is the piece you reach for when a joint has to survive an enameling firing without spoiling the enamel. Commonly k...
View full detailsCopper Casting Grain
Otto Frei5.0 / 5.0
1 Review
This hard-to-find .999 pure copper casting grain is used for alloying with gold and silver. High-purity copper ensures consistent, repeatable resul...
View full detailsCopper Solder Paste - Soft - 1/2 oz - Cadmium Free
Otto FreiPaste solder puts hard solder and its carrier exactly where the joint needs them. This copper paste solder, technically known as phos-copper paste ...
View full details14K,18K & 19K Otto Frei White Gold Plumb Solders
Otto FreiManufacturing work requires the solder to hold the same gold standard as the piece it joins, and that is what a plumb solder is for.These plumb whi...
View full details18K Yellow, 14K Yellow, 14K White & Yellow Gold Filled Repair Paste Solders
Otto Frei5.0 / 5.0
4 Reviews
Reach for a paste repair solder when a piece comes across the bench with an unknown solder history and the join has to stay put. These hi-karat gol...
View full detailsBrass Casting Grain-Sold by the Troy Ounce
Otto Frei1.0 / 5.0
1 Review
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....
View full detailsSilver Solder Sheet Kit
HarmonyA silver solder sheet kit puts three flow points on the bench at once, so a fabrication run and a later repair can each get the grade it needs. The...
View full detailsPlatinum Plumb Solders
Otto FreiJoin high-purity platinum at the bench with a solder that carries platinum of its own. Platinum Plumb Solders are a breakthrough for professional j...
View full details10K Yellow, 14K Yellow & 18K Yellow Otto Frei High Karat Clipped Repair Solders-Easy
Otto FreiPre-clipped yellow gold repair solder for fast, consistent repair soldering at the bench, supplied in uniform 1.0 mm squares.These easy-flow paillo...
View full details2 Ounce Pack-Re-Cast-It Gold Alloy Refresher-Replenisher
Otto Frei5.0 / 5.0
1 Review
Put old or scrap yellow gold back in the crucible and pull a bright, clean casting out of it. Re-Cast-It is an alloy additive designed for recastin...
View full detailsPlatinum Traditional Solders 1000C to 1700C
Otto FreiTraditional platinum solder for soldering platinum and palladium work at the bench, supplied in sheet form weighing approximately 1 DWT.Traditional...
View full details14K Yellow Gold Laser Welder Wire-26, 30 & 34 Gauge-Sold by the foot (12")
HarmonyFeed matched 14K yellow gold filler into a laser weld at the bench. Harmony 14K yellow gold laser welder wire is specially formulated for use with ...
View full details18K Yellow Gold Laser Welder Wire-26, 30 & 34 Gauge-Sold by the foot (12")
HarmonyLaser welding wire for filling, building, and repairing 18K yellow gold at the bench. This Harmony wire is specially formulated for use with laser ...
View full details14K Gold Plumb Solder Kit
Otto FreiCover a full fabrication sequence at the bench with one set of torch solders. This 14K gold plumb solder kit supplies four distinct gold solders, g...
View full details18K Gold Plumb Solder Kit
Otto FreiJoin 18K yellow gold at the bench with three matched torch solders in one kit: easy flow, medium flow, and hard flow. These are true plumb gold sol...
View full detailsGold Clipped Plumb Easy Flow Cadmium Free Solder – 1 DWT Packs
Otto FreiClipped plumb gold solder for jewelers who need a clean, reliable join at the bench without cadmium in the alloy. Each clip is a precision-cut 1.0 ...
View full detailsDark Yellow 9-14 Investment Casting Master Alloy For Stone In Place Casting-Per Troy Ounce (20 DWT)
Otto FreiThis Dark Yellow Investment Casting Master Alloy is formulated for alloying with pure gold to produce 9K to 14K casting alloy, with specific perfor...
View full details14KP & 18KP Pink Gold Easier Flow Plumb Solders
Otto Frei3.0 / 5.0
1 Review
These plumb pink gold solders join 14K and 18K pink gold at the bench with a close color match to the parent metal. Pink gold solders are notorious...
View full detailsLight Yellow 9-14 Investment Casting Master Alloy-Per Troy Ounce (20DWT)
Otto FreiA popular all-around investment casting master alloy formulated for producing 9–14k gold. This alloy contains more silver than comparable formulati...
View full detailsSterling Silver Laser Welder Wire-1/4 Ounce Coils-26 & 30 Ga.
Otto FreiLaser welding requires filler that matches the metal on the bench rather than solder, and this coil is alloyed to sterling for exactly that purpose...
View full details14K White Round Redi-Prong Refills
Redi-ProngsRe-tip worn prongs on round diamonds at the bench without cutting and placing solder as separate steps. Redi-Prong refills carry pre-applied solder...
View full detailsStandard Yellow 9-14 Investment Casting Master Alloy-Per Troy Ounce (20DWT)
Otto FreiA reliable, professional-grade investment casting master alloy formulated to produce a darker yellow tone ideal for 10K–14K gold alloying. This all...
View full detailsManganese Bronze Casting Alloy by the Pound
Otto FreiJewelers Manganese Bronze is a casting alloy developed to provide jewelry casters with a base metal suitable for both centrifugal and vacuum castin...
View full detailsDark Pink-Rose 9-18 All Purpose Master Alloy-Sold By the Troy Ounce (20DWT)
Otto FreiThe Dark Pink-Rose 9–18 All Purpose Master Alloy is a professional-grade casting and fabrication alloy designed for jewelers working across a wide ...
View full detailsPink Solder Alloys-For Making 18K Pink Solder-Easy, Medium & Hard
Otto FreiThese 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,...
View full detailsRich Yellow 18-22 Investment Casting Master Alloy-Per Troy Ounce (20DWT)
Otto FreiRich Yellow 18–22 Investment Casting Master Alloy delivers a deep, rich yellow color in the classic European style. Featuring a smooth surface and ...
View full details