The future of kitchen extract maintenance
What exactly is RZ-Clean-Seal?
RZ-Clean-Seal is a preventative maintenance programme for commercial kitchen extract systems. Instead of repeatedly allowing grease to build up on bare ductwork and then carrying out intensive cleans, we clean the system, protect the internal duct surface with RZ-Ecoseal, and then maintain it through planned cleaning.
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Understand it in one sentence
We professionally clean the extract system, seal the internal ductwork to reduce grease adhesion, then maintain the protected surface so the system stays cleaner for longer.
01 — How it works
One system. Three simple stages.
The kitchen extract system is surveyed first to assess suitability, access and preparation requirements. The RZ-Clean-Seal process then follows three clear stages.
1
CLEAN
The kitchen extract system is professionally cleaned and prepared. Existing grease, residue and contamination are removed so the internal ductwork is ready for RZ-Ecoseal application.
The purpose
Create the correct clean surface before the protective coating is applied.
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2
SEAL
RZ-Ecoseal is professionally applied to the internal surface of the ductwork, creating a smoother protected surface designed to make it more difficult for grease and contamination to adhere.
The purpose
Reduce future grease accumulation and protect the internal duct surface.
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3
MAINTAIN
The protected system moves onto a planned maintenance programme. Future residue is removed from the sealed surface so the system remains cleaner and easier to maintain.
The purpose
Support longer cleaning intervals and reduce repeated intensive cleaning.
02 — What actually changes?
The difference is inside the ductwork.
Traditional cleaning removes grease after it has accumulated. RZ-Clean-Seal adds a preventative stage by protecting the internal duct surface after the system has been professionally cleaned.
Without RZ-Clean-Seal
Bare metal ductwork is exposed directly to grease and contamination, allowing build-up to progressively return between cleaning visits.
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With RZ-Clean-Seal
The cleaned ductwork is protected with RZ-Ecoseal, creating a brighter, smoother internal surface designed to reduce grease adhesion.
The simple difference: traditional maintenance repeatedly removes grease after it builds up. RZ-Clean-Seal combines professional cleaning, internal surface protection and ongoing maintenance to help reduce how quickly that build-up returns.
03 — What does that mean for you?
Less build-up. Smarter maintenance.
The objective is not simply to make the ductwork look cleaner. RZ-Clean-Seal is designed to change the long-term maintenance cycle of commercial kitchen extract systems.
84%
Grease reduction
Case-study measurements have recorded reductions in grease accumulation of up to 84%.
6–12
Month intervals
Some treated sites moved from approximately three-monthly cleaning to six months and, in some cases, twelve months.
50%
Cleaning reduction
Published RZ-Clean-Seal material reports reductions in cleaning requirements of up to 50%.
780kg
CO₂e / site / year
Estimated annual reduction for a typical installation within the RZ-Clean-Seal sustainability model.
04 — The commercial difference
Traditional cleaning vs RZ-Clean-Seal.
Area Traditional maintenance RZ-Clean-Seal
Initial clean Existing grease is removed from the extract system. ✓ System professionally cleaned and specifically prepared for sealing.
Duct surface Bare internal metal remains exposed after cleaning. ✓ Internal ductwork is protected with RZ-Ecoseal.
Grease build-up Grease progressively accumulates again between cleans. ✓ Protected surface is designed to reduce grease adhesion.
Future cleaning Repeated intensive cleaning as grease levels increase. ✓ Planned maintenance cleaning of the protected system.
Cleaning intervals Driven by how quickly the system accumulates grease. ✓ Reduced accumulation can support longer intervals where site measurements demonstrate this is appropriate.
Long-term approach Remove the problem after it develops. ✓ Reduce build-up and manage the system preventatively.
05 — Why can it reduce long-term costs?
The commercial logic is simple.
Reduced grease accumulation
Less grease adheres to the protected internal duct surface.
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Longer cleaning intervals
Some sites can move to fewer intensive cleaning interventions.
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Lower maintenance burden
Fewer visits can reduce cost, disruption, waste, chemicals, water use and maintenance-related travel.
Could RZ-Clean-Seal work for your kitchen extract system?
Speak to our team about your current cleaning frequency, grease levels and maintenance costs and find out whether RZ-Clean-Seal could provide a more efficient long-term solution.
*Performance figures shown are based on published RZ-Clean-Seal case-study results and sustainability modelling. Actual performance will vary according to cooking activity, system design, site conditions and maintenance requirements.