SRS STONE CAST 22.7KG SACK
SRS Stonecast is simple to use and is mixed in the normal way for standard Gold and silver investments. All that needs to be adjusted is the burnout cycle temperature which must not exceed 630°C.
Today, SRS Stonecast is the industry leader for wax setting investment powders. It works by ensuring that the correct de-oxidising additives are present, thereby minimising the risk of damage to diamonds or other precious stones. These include problems with burnt diamonds, accelerated set times, incomplete filling, spalling and flashing over or under stones.
Special application powder for stone-in-place casting or wax setting. SRS can be relied on for highly effective solutions for stone-in-place castings because it is SRS who pioneered the inclusion of special additives into investment powder for this kind of application.
Do not remove flasks from furnace to cast until they have been held at casting temperature for a minimum of 1 hour. If held for less than 1 hour, the core of the flasks will be at a much higher temperature than the digital temperature display states, and may result in metal mould reaction.
- Slurry temperature 21°C
- Leave for 90 min to stand before burnout
MIXING INSTRUCTIONS
POWDER TO WATER RATIO 100 TO 38
MIXING BY HAND
Add powder to water
Mix for 3 minutes
Vacuum mixture for 1 minute
Pour flasks
Vacuum flasks for 2 minutes
Remove flasks immediately from vacuum and to stand on a firm surface for 2 hours
MIXING BY MACHINE
Add powder to water
Mix for 4 – 5 minutes under full vacuum
Pour flasks
Vacuum flasks for 2 minutes
Remove flasks immediately from vacuum and to stand on a firm surface for 2 hours
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