A concentrated product formulated for the sterilisation of masonry infected with dry rot fungus. Other uses include the control of mosses, lichens and algae on external surfaces. Does not contain any hydrocarbon solvents, glycols or glycol ethers. When diluted forms a low odour, non-corrosive and stable microemulsion. Trisol 23 should be diluted 24:1 with clean water. Supplied in 1 litre packs.