New house, now about 5 years old completely built with our Secil NHL in Cork city. Zero lime leaching or any other unsightly staining that hybrid mixes can cause.  Strong case for using Secil NHL on all brickwork, old and new. Check out Midleton train station also, the main building was re-pointed with our lime but the car park walls were built with sand/lime/cement mix (and have all the signs of it!) Very short short term thinking mixing cement with lime.