On a production line for individual soles or safety footwear, release agents, waxes, and polymers accumulate in undercuts, on vertical surfaces and around injection points. This progressive build-up affects:

• The aesthetic quality of the soles, which become duller upon exiting production

• The demolding rate, slowed by residual friction

• The mold’s surface condition, weakened by aggressive mechanical cleaning

• Product conformity, particularly in safety footwear manufacturing

Mold Cleaner Gel 300/195 has a high viscosity (approximately 3,000 mPa⋅s), which allows it to remain in place on vertical and complex mold surfaces. A liquid mold cleaner runs off too quickly to achieve an effective contact time on these areas.

Technical specifications of the mold cleaning gel:

• Base: solvent blend with dissolving action

• Viscosity: 3,000 mPa⋅s , preventing run-off on vertical surfaces

• Action time: from a few minutes to several hours depending on the degree of contamination

• Compatibility: steel and aluminum molds

• Flash point: 45 °C, flammable liquid, Cat. 3

The 300/195 injection mold cleaning gel is specifically formulated to dissolve deposits that harden over repeated thermal cycles:

• Accumulations of hardened release agents on walls and undercuts

• Waxy residues from oil-based release agents

• Polymer deposits associated with PU and TPU injection molding

• Resin traces on injection nozzles and inserts

1. Allow the mold to cool before application to prevent premature evaporation.
2. Apply with a brush to contaminated areas.
3. Let it sit depending on the level of contamination.
4. Wipe off mechanically with a non-abrasive cloth.
5. Rinse if necessary with a volatile cleaner (acetone).

Expert advice from Keck Chimie

“The most common mistake in the workshop is waiting until deposits become excessive before cleaning. Preventive maintenance with a suitable product preserves the surface condition of the molds and ensures consistent quality of injected parts. The goal is not corrective recovery : it is regular maintenance.”

The 300/195 delivers the best results in:

• High-speed PU and TPU injected sole production lines
• Safety footwear manufacturing, where demolding quality directly affects product compliance
• Polyurethane foam units subject to heavy contamination
• Workshops using oily or waxy release agents that leave significant residue

For compatible applications, Keck Chimie is simultaneously developing a range of water-based industrial chemicals with low VOC content.

What is the difference between a gel and a liquid mold cleaner?

The gel adheres to vertical surfaces without running off.

How long should the 300/195 be left to act?

From a few minutes to several hours, depending on the degree of contamination.

Is it compatible with aluminum molds?

Yes, it is suitable for both steel and aluminum molds.

Can it be applied to a hot mold?

No. It must only be applied to a cooled mold.

How often should it be used in high-speed production lines?

As part of regular preventive maintenance, never as a corrective measure.

Is the product classified as hazardous?

Yes. It is classified as a Flammable Liquid Category 3 product and is intended for professional use with appropriate personal protective equipment (PPE).

Are you looking to remove hardened deposits from your injection molds without damaging their surfaces?

Contact Keck Chimie today. Our technical teams will help you evaluate Mold Cleaner Gel 300/195 directly in your industrial production environment.

Contact us to test 300/195 under real industrial conditions.