GLASS INVEST for casting glass 1 kg

 ADVANTAGES

- smooth surfaces of castings
- fast setting
- easy demolding

Mixing ratio    Powder : Water 1 kg : 0.31 – 0.32 l
Usability time of the mixture: approx. 14 min.
Start of binding time: approx. 19 min.
End of binding (setting time): approx. 28 min.
Viscosity approx. 23 dPaS
Drying time before heating: approx. 120 min
Preheating temperature approx. 900 °C
Heating rate 75 °C / h

Usage Instructions

- temper the material and water to 18-22°C
- water temperature above 30°C shortens the setting time, while lower temperatures prolong it
- the mixing ratio can vary according to the complexity of the object's shape within the above-mentioned ratio
- pour the powder into the weighed amount of water, wait for it to soak, and then mix thoroughly; be careful not to incorporate too much air - air bubbles
- if possible, vacuum the mixture, but this is not strictly necessary
- dry at room temperature for at least 120 minutes before heating
- then evaporate the wax – heating for at least 3 hours
- fill the crucible with glass granulate and heat to 900°C
- at a temperature of 200°C, a waiting time of several hours is expected
- heating time at the final temperature is 20-40 hours
- cooling time is approx. 4 days
- waiting time is expected at temperatures of 650 °C and 470 °C
- demolding is performed after cooling to room temperature