Manuals
Powder
http://www.faqs.org/patents/app/20080281019#b
Plaster PVA Maltodextrin Terra Alba (a small amount)
The Terra Alba is important for fast drying. But adding too much will cause it to dry too fast and crack.
Alabaster plaster with 20 to 80 micron (call manufacturer) needs a mix of small and large particles.
Binder
Percentage (amount needed for 1 gallon)
- Distilled Water: 93.45% volume (3537 ml)
- Surfynol 465: 0.5% volume (18.92 ml)
- Glycerol: 6% volume (227.12 ml)
- Potassium Sulfate: 0.2% weight (7.5 mg)
- Proxel GXL: 0.05% volume (1.89 ml)
Glycerol: http://www.coleparmer.com/catalog/product_view.asp?sku=8816552&pfx=WU
Potassium Sulfate: http://www.coleparmer.com/catalog/product_view.asp?sku=8822253
Proxel GXL: http://www.archchemicals.com/Fed/BIO/Docs/Splash/Proxel-GXL.pdf
Tools
Surface Tensionometer: http://www.coleparmer.com/catalog/product_view.asp?sku=5978090
Viscosity meter: http://www.coleparmer.com/catalog/product_view.asp?sku=0870100
Surface tension: 45 dynes/cm
Viscosity: 1.35 cps
Homebrew Links http://reprap.org/wiki/Powder_Printer_Recipes