SIAM CASTING POWDERS LTD.
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SCP - Products
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
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% |
WATER TO POWDER RATIO
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 |