Cleaning beyond cleanliness -
Making the (invisible) difference in every lens

Cleaning beyond cleanliness -
Making the (invisible) difference in every lens

Flawless Cleaning for Ophthalmic Lenses

In ophthalmic lens manufacturing, surface cleanliness is critical to quality outcomes. Residual polishing agents, adhesives, or particles can lead to poor coating adhesion, optical defects, or increased reject rates.

Developed specifically for the demands of ophthalmic lens production, our HYDRENE™ aqueous cleaners help you achieve residue-free cleaning, maintain process control, and reduce environmental impact.

We understand your cleaning challenges – because we’ve solved them. 

 

Your Challenge Our Solution
Stubborn residues affecting coating? High-performance aqueous formulas eliminate adhesives,
polishing agents, and organic residues.
High reject rates or optical defects? Optimized surface preparation improves coating adhesion
and reduces defect rates.
Frequent equipment wear & maintenance? Gentle, non-aggressive chemistries protect
machine brushes and extend filter life.
Hazardous waste and high disposal costs? Lower chemical loads mean reduced waste,
safer handling, and easier wastewater treatment.

Residue-Free, Sustainable Aqueous Cleaners For Every Stage of Lens Production

Our HYDRENE™ aqueous portfolio includes targeted cleaners for every major step of lens production. Whether you're preparing lenses for inspection or applying hard coatings, we provide tailored solutions that integrate seamlessly with your existing equipment and processes.

Our HYDRENE™ aqueous cleaners are compatible with:

  • Organic lenses (CR-39, polycarbonate, high-index)
  • Hard-coated surfaces
  • Surfaces ready with antireflection coating 



Application Product
Recommendations 		Cleaning Technology
Cleaning of Semi-Finished Lens HYDRENE™ PC 12.04
HYDRENE™ PC 02.07 		Ultrasonic
Mold Cleaning HYDRENE™ PC 10.13 Brush Cleaning, Spray
Cleaning Before Inspection HYDRENE™ PC 09.01
HYDRENE™ PC 12.04
HYDRENE™ PC 02.07
HYDRENE™ PC 10.13 		Ultrasonic
Ultrasonic
Ultrasonic
Brush Cleaning, Spray
Cleaning Before Hard Coating HYDRENE™ PC 12.04
HYDRENE™ PC 02.07		 Ultrasonic
Ultrasonic
Deblocking HYDRENE™ PC 02.07 Spray



Targeted removal of:

  • Adhesive splinters
  • Polishing agents
  • Coolants, lubricants
  • Fingerprints & progressive marks
  • Residual surfactants or dye residues

REQUEST PRODUCT OVERVIEW TDS

Spotlight: HYDRENE™ PC 10.13 – Sustainable Cleaning Before Inspection For Brush System

HYDRENE™ PC 10.13 was developed in direct response to a common production problem: ineffective pre-inspection cleaning leading to high reject rates, brush wear and elevated waste volumes. 

Designed for use in brush cleaning systems, HYDRENE™ PC 10.13 offers a powerful yet gentle alternative to aggressive cleaners – delivering thorough removal of polishing residues and splinters while helping extending equipment life. 

 

Benefits you can expect:

  • Residue-free finishes for improved inspection outcomes
  • Gentle formula extends brush life and reduce replacement frequency
  • Lower product consumption through optimized formulations
  • Reduced wastewater output and better effluent quality
  • Increased worker safety due to less exposure to chemical waste   

  • Compatible with all major brush cleaning systems. 

     

    CONTACT US TO FIND OUT MORE

HOYA Lens Germany: 80% reduction in cleaner consumption, 90% reduction in waste volume with HYDRENE™ PC 10.13

For over 40 years, HOYA Lens Germany GmbH, a subsidiary of HOYA Vision Care, has been a trusted partner to opticians, delivering high-performance lenses and innovative optical solutions. 

THE CHALLENGE

 

Partial cleaning effectiveness
The existing cleaning solution occasionally left behind stubborn contaminants like adhesive residues, polishing compounds, and other manufacturing debris.

Waste volume and environmental considerations 
The previous cleaning solution, with over 50% chemical content, contributed to a higher chemical residue in the wastewater. This necessitated frequent waste treatment and disposal, adding to operational costs.

Frequent brush replacements and elevated maintenance costs 
The intensive cleaning chemicals contributed to excessive wear on the brushes in the brush cleaning unit, which acquired regular replacement.  

THE SOLUTION

By switching to HYDRENE™ PC 10.13, a state-of-the-art aqueous cleaner, HOYA Lens Germany has achieved:

  • Improved cleaning effectiveness, even with an 80% reduction in cleaner consumption
  • 90% reduction in waste volume and improved wastewater quality, resulting in significant cost savings and a markedly lower environmental footprint
  • Reduced maintenance costs, with cleaning brushes lasting 10 times longer and machine filter lifespan extended eightfold
Download Full Case Study

Beyond the Cleaner: Full-Service Process Support

We understand the technical challenges unique to your workflow – from the compatibility of organic lens materials to the nuances of ultrasonic systems and brush wear. 

Our in-house experts take time to understand your current processes, challenges and requirements. They work directly with your team to identify, test, and optimize the right solution – based on your materials, your machines, and your quality standards – backed by lab services and field support.

In short, we don’t just deliver cleaners. 
We collaborate to deliver you tailored cleaning process. 
 

Our comprehensive technical services include:

  • On-site support for trials and process set-up
  • Process parameter optimization (e.g. time, temperature, concentration)
  • Compatibility testing for lens materials and coatings
  • Lab analyses
  • Ongoing technical consultancy 
     

Trusted by Global Industry Leaders

Our cleaning technologies are already in use by top-tier ophthalmic manufacturers – including facilities producing millions of lenses annually. When the stakes are high, they choose our solutions to enable consistency, safety, and sustainability.

Whether you're fine-tuning an established line or scaling up a new facility, our team is ready to help you achieve cleaner, more consistent results. Let us show you how effective cleaning can reduce costs, improve yield, and help meet your environmental targets – without compromising on performance.

 

Ready to Improve Your Cleaning Results?

Whether you're troubleshooting a current issue or looking to optimize a new process, we’re ready to help.

 

SAFECHEM Europe GmbH
Tersteegenstr. 25
40474 Duesseldorf
Germany

 

service@safechem.com
Phone: +49 211 4389-300

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