Yes i think the chemical brothers are great, i am happy to share my experience of using high alkaline based cleaning chemicals as i cant comment on specific brand names of chemicals on an open forum or post pictures and name and shame. Anyway i joined the cleaning industry in 1982 and was introduced to a range of different cleaning chemicals not having a clue about acidic or alkaline based chemicals, just took it on faith that they would do the job and yes they did do the job of removing soils from surfaces, but it took me many years to cop that these harsh chemicals did the job at a cost as i was always wondering why surfaces were becoming damaged, again without being boring i eventually found out that it was from using high alkaline based cleaning chemicals on a continuous basis. Now guys i dont have a background in chemistry but it was on a trip to the USA in search of safer cleaning solutions i met a chemist who explained to me the detrimental damage that harsh chemicals cause to surfaces, he recommended to use products that were Gras rated (generally regarded as safe) these products would have a pH value of between 5.5pH to 9.5pH he also shared much more interesting information on how dirty the cleaning industry really is (again i cant go into this on an open forum) this chemist had worked for many years with some of the biggest companies in the world producing cleaning chemicals but had made the change to work with a company that was producing one of this centuries most promising advances in cleaning science, anyway he went onto explain that chemicals with a pH value of 7 are neutral products that are under 7 on the pH scale are acidic and products with a pH value of over 7 are alkaline ( yes i know most of you will already know this) but he went onto explain that the ph scale is logarithmic meaning that an increase or decrease of an interger value changes the concentration by a tenfold, for example a cleaning chemical with a pH value of 11 is ten times more alkaline than a cleaning chemical with a pH value of 10
Again guys i am only sharing my experience here and for this reason the products that we generally use now have a pH value of 8.7 as i say there are many janitorial suppliers in the UK who promote safe to use products that are equally as effective as some of the products that have been mentioned on this post but they will not cause detrimental damage from continuous use. Again guys from my experience over the years its from the continuous use of harsh cleaning chemicals on surfaces that causes the detrimental damage, if you are doing o one off job on a conny roof you will not notice the damage. if you are checking out new cleaning chemicals look at the msds as they have to contain all the relevant information you require to make an informed decision on wether they are considered safe or not. Just to share as i dont have a background in chemistry if i am checking out new cleaning chemicals that are supposed to be safe i will dilute them at the recommended ratio then spray the chemical up into the air and let it fall back into my eyes and face, if i find it irritating well i know its not a Gras (generally regarded as safe) chemical.
now my next question is who is going to be brave enough to try that trick with any brand of TFR. as i said guys i am happy to share some of my experiences over the years and hope that some of the info can be of benefit to others. Regards Tadgh
