Products > Lotexan & Lotexan N

Description

Keim Lotexan is a siloxane based water repellent treatment for use on alkaline mineral substrates such as concrete and new cementitious renders. For mineral substrates having a lower alkalinity, such as weathered natural stone, Keim Lotexan N was developed as a dedicated generic variant.

When applied Keim Lotexan soaks into the substrate and, having a small molecular size, actually coats the pores of the mineral structure. A chemical reaction then takes place converting the siloxane into a silicone layer on the pores of the substrate which provides water repellency but maintains the vapour permeability. If a silicone is applied as an alternative it has a much larger molecular size and tends to fill the pores rather than coating them, reducing breathability.

Consumption rates are intended for guideline purposes only and are quoted for smooth rendered surfaces.

Actual rates are the responsibility of the applicator. Project specifications should be referred to for specific rates.

The benefits of Keim Lotexan have been realised at the many projects including:

St Malachy's Church in Belfast,  Grays Inn Buidling in London, Portcullis House, Osbourne House in Isle of Wight, The Maltings at Mill Wynd in Haddington, John Knox Building on Edinburgh's Royal Mile, The Galleries of Justice at Nottingham Lace Market, The Scottish Parliament Buildings at Holyrood Road in Edinburgh,  Cardiff Castle, R.M.A. Sandhurst in Camberley and The Yorkshire ArtSpace in Sheffield.