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[ Alloys ] [ Superior ] [ Technical Guide]


  Properties
Category PFM
Nobility Noble
Melting Range 2175°F to 2330°F
Coef. of Thermal Expansion
   from 25°C to 500°C
   from 25°C to 600°C
14.2x10-6K-1
14.6x10-6K-1
Density 11.0 g/cm3
Grain Size 8 microns
Hardness 220 HV
Tensile Elongation 35%
Tensile Yield Strength 69,000 psi
Ultimate Tensile Strength 110,000 psi
Modulus of Elasticity 20.0x106 psi
Chemistry
Palladium 62.5% Silver 24.5%
Tin 9% Indium 2%
Zinc 2% Ruthenium less than 1%
Rhenium less than 1%    

Waxing / Spruing

 .3mm for single units and .5mm for bridge work.
Investment
 Use a phosphate-bonded carbon free investment.
Burnout
 1550°F (840°C)
Melting / Casting
One extra wind of the casting arm is required (3-4 winds typical)
Multi-orifice torch: 10 psi fuel and 20 psi oxygen.
Cast at around 2435°F (1335°C)
Finishing
 Finish with carbides or aluminum oxide stones. Blast porcelain receiving surface with non-recycled aluminum oxide. Clean in ultrasonic for 10 minutes.
Conditioning
 Oxidize from 1200°F (650°C) to 1850°F (1010°C) in air. Hold for 5 minutes. Proceed with normal opaque technique.
Pre-solder
 Recommended solder: PWS, LX
Flux-Brown Fluoride
Post-solder
 Recommended solder: 1400
Flux-Brown Fluoride