Plastic Mold Steels
Porcerax II
Before applying Dichtol to waterlines in Porcerax, it is imperative that all
EDM fluids and other cutting oils be completely removed from the pores of the
steel. Failure to do so greatly increases the risk of water leaks due to the
inability of the Dichtol to leach into the pores; the contaminants will occupy
the pores of the steel or will prohibit the Dichtol from bonding to the
surfaces.
Cleaning Procedures Before Sealing Water Lines:
Step 1.
Heat the block of Porcerax II to 300°F for at least (1) one hour. This will open
the pores and thin the fluids, allowing most of the trapped material to wick
from the steel.
Step 2.
After cooling to room temperature, soak the Porcerax II insert in an ultrasonic
cleaner (built for flammable solvents) filled with acetone. These units have
spark-proof switches, water chillers and are temperature monitored. This is the
only recommended type cleaner for cleaning Porcerax II.
Clean for approximately 1 to 4 hours, depending on insert size, back flushing
with filtered shop air and changing the acetone after every hour. When the
acetone remains clear the insert should be clean.
Step 3.
Dry with filtered shop air, and let stand overnight.
Note: In addition to the other cleaning methods, it may be necessary to
back-flush the Porcerax II inserts with acetone, using air pressure, in order
to thoroughly clean the inserts. Care should be taken when using solvents
under pressure.
Note: Any hot substance introduced to acetone will cause a flash fire!
Make absolutely sure the Porcerax II block is at room temperature!
Applying the two types of Dichtol sealant to Porcerax II waterlines.
Step 4.
Cover all water line inlets but one with a suitable tape. After tape has been
applied, stand piece on edge and fill water line through the one remaining open
line with Dichtol "WFT" for the 7 micron size. Use Dichtol Macro for 20 micron
size. Apply tape over the one remaining water line inlet.
Step 5.
Slowly rotate the piece in all directions to insure the Dichtol is evenly
distributed throughout the water line circuit. Let stand for 15-20 minutes.
Step 6.
Remove the piece of tape from the water line where Dichtol "WFT" was first
poured into the insert. Pour the Dichtol from the insert back into the container
for reuse.
Step 7.
Let stand empty 2 hours.
Step 8.
Re-tape the original hole, and uncover a hole on the opposite side of the
insert.
Step 9.
Pour in Dichtol "Macro" for all micron sizes.
Step 10.
Repeat steps 5 & 6.
Step 11.
Allow 24 hours drying time before applying water pressure to the piece.
Note: Dichtol that has cured can only be removed with Methylene
Chloride, Acetone or Dichtol Remover.
Note: Dichtol can be obtained from Devitt Machinery, Aston, PA. Tel:
(610)494-2900.
Diamant Metallplastic is the worldwide operating manufacturer of Dichtol for
the impregnation of micropores. For more information on Dichtol, visit their
website:
It is imperative that anyone coming into contact with Porcerax II during the
mold building or molding operations understand the characteristics and
sensitivity of this material. Any questions should be directed to International
Mold Steel at 1-800-625-6653.
 NOTE:
All technical and engineering data and suggested procedures, specifications and
applications contained in this publication are for general information only.
Sintokogio, Ltd., International Mold Steel and/or their distributors disclaim
any and all express or implied warranties of merchantability, suitability for
any particular purpose or use, or freedom from infringement of any patent,
trademark or copyright. Porcerax II® is a registered trademark of International
Mold Steel, Inc. and Sintokogio, Ltd..
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