Sealing Ducts.
Protecting Business.
Why would RZ-Clean-Seal benefit our restaurant? Scientifically, a sealed kitchen extract system is the most effective way to maintain your system’s performance and prevent grease buildup over time.
RZ-Clean-Seal employs a scientific approach to kitchen extract maintenance that enhances system performance and safety. By applying RZ-Ecoseal®, a protective coating, to the internal surfaces of the ductwork, the system becomes 100% airtight.
Beyond performance improvements, RZ-Clean-Seal also significantly reduces the fire risks associated with grease build-up. The sealing process prevents residual grease from carbonising, lowering the potential for ignition and fire hazards.

The Key Figures
A 1.5 mm layer of RZ-Ecoseal is applied to the inner surface of the ductwork, creating a barrier that prevents grease from adhering to the metal and hardening on the surface.
31 - 73
Heat Exchange before Sealant Application
0.2 - 0.5
Heat Exchange after
Sealant Application
30%
Increased Airflow Following Application
50%
Reduction In Costs After Application

Application improves airflow, stops grease buildup and keeps your system working for longer
01
Reduced Grease
Normally, grease hardens and becomes a fire hazard, but with RZ-Clean-Seal it stays liquid and wipes away easily.
02
Reduced Fire Risk
With less hardened grease, fire risk is reduced—keeping your staff, customers, building, and restaurant safe.
03
Increased Airflow
Sealing the system improves smoke and odour removal, creating a more comfortable kitchen and dining environment.
04
System Lasts Longer
Extends system lifespan by up to 10 years, reducing costly replacements caused by grease buildup.
- WITHOUT RZ-CLEAN-SEAL
A kitchen extract system can be extremely dangerous if left uncleaned. Grease quickly builds up inside ductwork, creating a serious fire risk for staff, customers, and the building.
- 3-monthly cleaning is required
- 3 shifts are required to clean 60 metres of ductwork
- £9,000 per annum to clean
- Cleaning is extremely difficult if the
grease has hardened
- WITH RZ-CLEAN-SEAL
Once sealed with RZ-Ecoseal, a kitchen extract system is much safer. Grease stays in a liquid form and is easily wiped away, greatly reducing the fire risk to staff, customers, and the building.
- 6-monthly cleaning is required
- 1 shifts are required to clean 60 metres of ductwork
- £1,500 per annum to clean
- Easy to clean