The molding material a seaweed-based material called alginate. It is non-toxic, hypo-allergenic, biodegradable and safe for skin, including for babies. Our brand of Alginate is used every day in the medical and dental fields for various applications. It is specially formulated to create amazingly detailed, high quality molds of body froms (hands and feet).
All molding powder
is not created equal and the molding powder we supply is manufactured to
our specifications and is unique to Luna Bean casting kits. You
will not find a higher quality molding powder in any retail or
pre-assembled casting kit on the market. Our exclusive formula includes
chromatic (color-changing) properties, which eliminates the need of
timing the procedure. When the off-white powder is added to water, the
mixture starts out bright pink and is ready
for molding once it starts losing color.
The end result is a highly detailed, very strong mold.
When using the
average mix as directed in the kits (60g of powder per 1 cup of water)
in room temperature water, the total working time of the molding
material is about 5-6 minutes. Approximately 1/2 of the working time is
for mixing and the second 1/2 of the time is the setting phase. All alginate molds will deteriorate
quickly. It is recommended that you pour the cast into the mold within 4 hours.
If this is not possible, store the mold in an air tight container in a
cool environment, such as a refrigerator, for up to 24 hours.
Room temperature
(75F; slightly cool to the touch) works well for adult and child hand
kits as it is comfortable enough for most and gives an adequate total
working time of about 5-6 minutes. For the infant and toddler foot and
hand kits, we suggest using luke-warm water (85-90F) which will give
about a 3- 4 minutes total set time. Alternatively, cold water
(60-65F) can be used, which will give you a total working time of about 7-9 minutes.
Water with a high
mineral content will cause any alginate mix to become lumpier than
normal and if the hard water contains calcium, it will also set faster. If you think your water is a concern, consider bottled filtered or distilled water.
Note: Timing starts
from the time the powder enters the water and the above referenced times
assume the powder has been stored at at about 70-75F for at least 12
hours.