Chemitek Lichen Removal Agent (LRA) is a biodegradable, non-abrasive solution designed to remove lichen, moss, and algae from solar panels safely and effectively. Perfect for the UK and Irish climate, it restores panel performance without damaging coatings or seals. TÜV-tested and warranty-safe, LRA is compatible with all major solar brands and suitable for manual, robotic, or drone cleaning systems.
Estimated application cost per m² £0,14
£21.64 +VAT
LRA is a lichen, moss and fungus removal agent designed specifically for use on solar panels.
The product will help break the bond between the lichen and the solar glass, making them easier to remove.
It is a readily biodegradable product and has been formulated to reduce the amount of brushing needed to reach the desired results.
Lichen Removal Agent is a biodegradable product designed to be as delicate as possible with the components of the solar module (ARC, silicone and aluminium frame).
The product is more efficient when applied on dry panels.
Don’t pre-rinse the modules!
We recommend the use of brushes with harder bristles to reduce the amount of brushing needed.
For standard manual or robotic cleaning, dilute LRA at 1:10 (1 part product to 10 parts water) and apply directly to dry panels using a hand or battery sprayer.
Spray evenly across the full surface, ensuring good coverage.
Allow 10–20 minutes of contact time to let the product break down the lichen and organic growth.
Brush vigorously to dislodge the remaining buildup.
Rinse thoroughly with purified or soft water to remove all residue.
In heavier cases, you can lightly brush before spraying to help LRA penetrate the lichen layer more effectively.
For operators using rotary brushes, robots, or tractors, LRA can be mixed directly into the cleaning water — either in the tank or via a dosing pump.
Mix at a 1:10 dilution in pure water.
Apply using your normal cleaning system, ensuring panels remain soaked for 10–20 minutes.
Then switch to pure rinse water and complete a thorough brushing and rinse cycle.
This method helps integrate LRA into automated cleaning workflows, reducing manual pre-spray time on larger installations.
Chemitek Lichen Removal Agent (LRA) must always be diluted with pure or demineralised water before use.
The dilution ratio depends on the level of biological soiling and the duration of contact time available.
For regular maintenance or panels showing early signs of organic growth. Apply on dry panels, allow 10–15 minutes dwell time, then brush and rinse thoroughly.
Ideal for most UK installations with moderate lichen or moss buildup. Provides strong cleaning action while remaining safe for coatings and seals. Allow 15–20 minutes dwell time before brushing.
For heavily contaminated modules or long-neglected sites. Apply liberally to dry panels and let the product dwell up to 20 minutes before intensive brushing and rinsing. A repeat application may be required for stubborn spots.
Chemitek is a global leader in the development of innovative solar panel cleaning and maintenance chemicals. Their range is designed to maximise PV system performance while protecting the environment. All products are biodegradable, TÜV-tested, and approved by major solar module manufacturers.
Unlike general-purpose cleaners, Chemitek products are specifically formulated for photovoltaic (PV) glass. They remove soiling effectively without damaging anti-reflective coatings, seals, or frames. Each product targets a specific issue — such as organic soiling, lichen growth, or static dust — and has been tested for compatibility and warranty safety.
Yes. Every Chemitek solution is biodegradable, pH-neutral, and non-toxic, designed for use in sensitive environments including floating PV systems and agricultural installations. Wastewater management guidelines are provided to ensure compliance with local regulations.
SWP is a 2-in-1 cleaner and antistatic protectant for regular maintenance of solar panels, removing dirt, pollen, and organic residue.
LRA, on the other hand, is a specialised treatment for stubborn biological growths such as lichen, moss, and algae. It’s ideal for panels in damp or shaded UK and Irish environments.
Yes. Chemitek holds letters of conformity from leading module manufacturers confirming that its products are warranty-safe when used according to the official instructions. They have been independently tested by TÜV SÜD to ensure full compatibility with solar glass and frames.
Cleaning frequency depends on the local environment. In the UK and Ireland, panels typically benefit from 1–2 cleanings per year using SWP, with additional LRA treatment as needed in high-lichen or coastal areas. ASA 2.0 can extend the interval between cleanings by up to 50%.
Yes — positively. By removing soiling and preventing recontamination, Chemitek products help recover lost yield caused by dirt and biological buildup. Field results show 3–5% performance improvements after cleaning with SWP or LRA, and longer-lasting cleanliness when ASA 2.0 is applied.
Chemitek’s full range — including SWP, LRA, ASA 2.0, and other cleaning agents — is available through their official UK & Ireland distributor, Solar Clean Robotics UK.
Here you can download product manuals and other documents
