Belzona 5122

Belzona 5122 (Clear Cladding Concentrate) is suitable for porous mineral substrates including concrete, limestone, sandstone, brick, dolomite, and asbestos cement. It provides excellent adhesion across a wide range of pH values from 7.8 to 9.9, making it effective on alkaline materials such as cement and mortar. Typical applications include the waterproofing of brickwork, stone, and concrete structures, long-term protection of statues and monuments, and reconstructed stone protection.

Belzona 5122 is supplied as a concentrate and must be diluted before application. Mix one liter of Belzona 5122 with nine liters of clean tap water in a plastic bucket and stir thoroughly. In particularly exposed situations or where rain runs down inclined surfaces, use a dilution of seven parts water to one part concentrate. Apply by long-bristled brush or low-pressure spray, starting at the lowest section of the prepared surface and working upward so the material runs down into previously coated areas. The diluted material must be used within 24 hours and should not be applied below 41°F (5°C).

No. Belzona 5122 dries to be completely invisible, retaining the natural appearance of the substrate. Because the material is transparent when cured, care should be taken to mark treated areas if the work is interrupted to avoid misses when the application is resumed. The treated surface remains breathable due to its microporous structure, allowing the passage of air and water vapor while preventing water ingress. Treated surfaces also exhibit reduced dirt retention and inhibited growth of moss, mold, and algae.