SRS STONE CAST 45KG DRUM

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.

1. Slurry temperature 21°C

2. 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