Cement & Limestone Remover

Remove What Water Can't

Near cement works, quarries and building sites, alkaline dust settles on the glass, absorbs moisture and cures into a hard film. Water and brushing don't remove it, and abrasive methods damage the anti-reflective coating.

CRA reacts with the contaminant, not the glass, and turns it into particles that rinse off. It is a remediation product: once the glass is clean, Chemitek recommends protecting it straight away with Antistatic Solar Armor so the film doesn't return.

Key Benefits

• Removes cured cement dust, stone dust, gypsum and hard-water stains
• Reacts with the contaminant only; designed to be gentle on the AR coating, silicone and aluminium frame
• 8 module-maker letters of conformity, including LONGi, JA Solar, Jinko and Trina
• Biodegradable (Chemitek)

How to Use (Chemitek Datasheet)

• Test first: try a small area to find the right dilution
• Dilute: start at 1 kg of CRA in 2 L of water; if needed, strengthen to 1:1 or 1:0.5 (neat only as a last resort)
• Apply to dry modules: wet glass greatly reduces the effect
• React and brush: let it react for a few seconds without drying, then brush it in without adding water
• Rinse: rinse thoroughly with clean water and a brush; repeat if needed
• Protect: apply Antistatic Solar Armor straight afterwards

Results

• South Africa, RenewChem pilot (±15.6 MWp plant beside a cement works, North West, June 2026): a string cleaned once with CRA read 10.4 A against 9.7 A on comparable uncleaned strings (+7.2%)
• Chile, Chemitek case study (48 kWp carport beside a precast-concrete factory): after CRA and ASA, the daily generation gap to untreated modules grew from 4.6% to about 11.9% (29 Sep to 14 Nov 2022)
• Dubai, Chemitek case study: CRA cut a treated inverter's deficit to a clean reference inverter from 6.6% to 2.1% in 35 days