GRAPHIC: Link to International Mold Steel welcome page.
Home | About Us | What's New | Webinars | Videos | Contact Us


Plastic Mold Steels

Porcerax II

Sealing Water Lines in Porcerax II with Dichtol

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 300F 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:

Important Warning:

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 859.342.6000.

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..





Recommended Reading

Unique Characteristics


General Properties

Post-Machining Treatments

Water Line Sealing

Design Guidelines

Cleaning, Maintenance, and Resin Removal

Porcerax II Insert Installation

Porcerax II Pin Installation

Discussion Forums



  International Mold Steel, Inc. 
1155 Victory Place
Hebron, KY 41048 USA 
Tel: 859.342.6000
Fax: 859.342.6006
Sales E-mail:
Literature E-mail: