Hydrostone is an extremely hard and strong plaster. Its very low viscosity allows for excellent detail reproduction. Primarily used for high-quality art, novelty and statuary castings. Available in a non-yellowing formulation. Moderate expansion properties.
Packaged in standard 50-pound bags
Mix Ratio: 22:100
Expansion: 0.20%
Crush PSI: 13,000
Set Time: 15-25 min
General Mixing instructions –
Your mixing container and equipment should be clean and free of all previous plaster mixing debris. Old plaster will cause your new mix to set irregularly and at a faster rate.
Water needs to be carefully and specifically measured. Water temperature is very important to your set time. Testing water is at 70°F – use a thermometer! Hotter water will speed up your set time, cooler water will slow and retard the set time.
Plaster mixes into water: sift your plaster into the pre-measured water, allow to slake for 30 seconds and mix time will be about 30 – 60 seconds. Plaster ages, it is hydroscopic. Older plaster may require less water.
For USG11:
• Mix should be 5.5 pounds water to 50 pounds USG11.
• Slowly add plaster in water.
• Allow to soak for 2 minutes.
• Mix 2 minutes to heavy creme density. Longer mixing = stronger mold & shorter set
Reviews
There are no reviews yet.