SIAM CASTING POWDERS LTD.
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INVESTMENT
POWDERS
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Investment Powders

Siam Casting Powders

Omega

SACK : 22.5 kg. (50 lb.)
Drum : 22.7 kg.

Top quality powder especially suited to palladium white and 18k & 22k gold. For gold casting nothing surpasses the quality of OMEGA.

This is our signature product which is composed of the highest quality and concentration of unmineralized cristobalite

Please contact us.

Product Detail

Omega

OMEGA offers the following benefits to the Jewelry caster:

  • High purity raw materials graded and selected especially for jewelry lost wax casting.
  • Increased refractoriness gives better thermal shock resistance during burnout and casting.
  • More user friendly able to perform in a wider set of parameters.
  • Suitable for all metals and all karat gold or fine filigree work.
  • Smoother surface finish – less polishing required.
  • Offering an easy clean off.
Technical Data
Powder / Water Ratio : 100/38
Working Time @ 25c Slurry Temp : 8-9 min.
Gloss Off Time @ 25c Slurry Temp : 11 – 13 min.
Thermal Expansion At 750c : 1.2%
Machine Vacuum Mixing 38 : 100
Hand Mix Then Vacuum 38 : 100
Use de-ionised water
Weigh water and powder
Slurry temperature 21 ํC
Leave for 90 min to stand before burn out
MACHINE VACUUM MIXING
0 min Weigh out water & powder Add powder to water
1 min Mix under vacuum
0.5 min Stop mixer and scrape blades
3.5 min Mix under vacuum
2 min Pour flasks
1 min Vacuum flasks
8 min Total time taken
HAND MIX THEN VACUUM
0 min Weigh out water & powder
Add powder to water
1 min Mix by hand
3 min Mix with machine
1 min Vacuum mixer bowl
1 min Pour flasks
2 min Vacuum flasks
8 min Total time taken