- Effectively removes concrete, cement, grout, quarry dust and hard water scale, without damaging the surface
- Non-corrosive, surface safe formulation
- Perfect for delicate surfaces including paintwork, glass, stainless steel, aluminium, plastic and rubber
- Low odour – no harmful fumes
Congo has been developed to remove concrete and other calcium based soils without the corrosion issues associated with conventional products. Use product neat or dilute up to 1:3 (25%) depending on degree of soiling. Apply product using brush or spray and fully wet surface. Leave to dwell ideally overnight. Remove using high pressure water. Does not contain Hydrochloric Acid or other mineral acids.