HMK® R773 is a special alkaline based concentrated cleaner for removing extremely persistent atmospheric deposits, oily soot, water marks and mineralization from rough granite, gneiss and sandstone facades. For external use.
Ensure all adjacent surfaces are protected. Always mix solution where spills can do no damage.Work on manageable areas at a time. Dilute HMK R773 with clean water (1:1 to 1:3) depending upon the intensity of the contamination. Apply the mixture on a cool and well wetted surface with a scrubbing brush, broom or a suitable pad. Scrub into the surface and leave it to work but do not allow it to dry. Scrub again and remove the residue. Thereafter apply HMK R163 Cement Film Remover diluted about 1:10 with clean water to neutralise the HMK R773 and to remove any cement smears. Rinse the treated area thoroughly with clear water to complete the procedure. Important: Do not apply in direct sunlight. Alkaline sensitive surfaces like polished marble, limestone and artificial stone, as well as some metals, plastics, etc. will be damaged by contact with HMK R773.
Chemical product. Contains caustic solutions. Avoid eye/skin contact. If exposed, wash/flush with water, and seek medical attention. Follow appropriate safety precautions. At all times wear suitable protective clothing (gloves, masks, boots, etc.). Keep out of the reach of children.
As HMK R773 is extremely strong, it is essential to always test the product in an inconspicuous area to evaluate suitability, coverage and performance. Do not use the product in temperatures below 12 and above 25°C. Store in a cool place and keep the lid tightly closed.