Gismo
14th July 2015, 06:08 PM
Not sure if you can get this in the UK, but, it's very good and requires little effort:-
http://panhandleminis.com/member_pictures/gismo/black_fjcw_2013/cleaning_products/blackfire_trim.jpg
Tested it on the roof gutter edge
http://panhandleminis.com/member_pictures/gismo/black_fjcw_2013/cleaning_products/mini_trim.JPG
http://panhandleminis.com/member_pictures/gismo/black_fjcw_2013/cleaning_products/blackfire_trim.jpg
Tested it on the roof gutter edge
http://panhandleminis.com/member_pictures/gismo/black_fjcw_2013/cleaning_products/mini_trim.JPG