|
|
 |
|
|
 |
|
Inquiry |
|
| |
|
|
| |
WATER/POWDER
RATIO (W/P)= 39/100)
After the metal is cast and solidified, the investment
may be removed by plunging the hot flask into room temperature
water or with a deflasking machine using a hydraulic
cylinder to push out the investment core. |
| |
|
|
| |
|
| |
Satin
Cast 20™ Investment |
| |
| PHYSICAL
CHARACTERISTICS |
- Water/Powder 38 to 40/100
- Working Time 9 min.
- Set Time 12 - 14 min.
- Green Crushing Strength @ 2 Hours 450 PSI
- Set Expansion @ 2 Hours .55
*Contains no asbestos
|
|
| |
Satin Cast 20™ Investment
Provides a super smooth casting surface, not a matted
satin finish. Highest quality premium grade cristobalite
formula. Low rise under vacuum. Wetting agent, debubblizer
added for uniform surface quality. Superior mold strength.
Easy to remove from cast tree. 100% U.S. produced raw
materials. Designed for gold, silver and alloys that
can be cast at 1350°F or below. Gypsum bonded investment.
Instructions
Weigh the investment powder and measure the mix water
at a ratio of 38 to 40 parts per 100 parts powder. (38
to 40 ml water per 100 grams of investment).
NOTE: Colder mix water temperature will increase working
time, while warmer temperatures will shorten working
time. For best results adjust water temperature to 75-
85 degrees F (24-29 degrees C). Add the investment powder
to the water. Using a spatula, mix by hand until the
powder is thoroughly wetted. Using a mechanical mixer,
mix on low speed for one minute, then on medium for
an additional two minutes.
Place investment mixing bowl under a bell jar with a
vacuum table pump down capacity of 29 inches of mercury.
Vacuum the investment slurry in the mixing bowl until
it rises, the bubbles break and it begins to boil vigorously.
Continue to vacuum for one minute. Pour the investment
down along the inside of the flask allowing it to flow
up, around and over the patterns leaving a minimum of?"
space at the sides and ½" at the top and
bottom.
Place flask under vacuum and de-air for 1 ½ to
2 minutes.
As with all Gypsum bonded investments, keep all mixing
equipment clean when processing.
NOTE: Small amounts of set investment
from previous mixes may accelerate the set time of the
mix, thus shortening the available working time. Top
off flask with investment if needed and allow to sit
undisturbed for a minimum of 1-2 hours. Remove sprue
base.
Load into burnout oven sprue end down. Follow general
burnout cycle.
|
| |
|
|
| |
|
| |
GYPSOFTM |
| |
|
| |
INVESTMENT
REMOVER POWDER
Zero-D Investment remover powder is highly effective and
non-corrosive. When mixed with water, it not only softens
investment but also acts as a pickling agent to remove
oxides from cast surfaces. Zero-D Investment remover also
serves as a cleaner for mixing bowls, bases and all other
utensils that may contain dried investment.
MIXING:
Add 38 grams of powder to
1 liter of water or 5 ounces to I gallon. For
best results use an ultrasonic cleaning unit of stainless
steel construction. DO NOT USE IN AN ULTRASONIC
THAT DOES NOT HAVE A STAINLESS STEEL CONTAINER.
For best results, heat the solution. Whether you use a
stainless ultrasonic or a kitchen crock pot, set the temperature
control on HIGH.
APPLICATION:
After invested tree has been water blasted or otherwise
cleaned of most investment, separate the individual pieces
from the tree and place in the cleaning solution. If you
are using a heated ultrasonic unit, processing time is
about 20 minutes. Time will vary depending on casting
size and complexity of design.
To clean other items such as wire whips,
paddles, mixing bowls and bases, allow them to soak
overnight at room temperature. Rinse in clean water
and wipe dry.
Because of the ability of this product
to soften investment, do not store it in the investing. |
| |
|
|
|
|
|
|
