As HG Algae and Mould Remover does not leave behind any harmful substances, the area does not have to be rinsed off. All of these green growth removal products are used extensively in the domestic and commercial sector and can stop external hard surfaces like concrete and natural stone going green. This product also leaves a minor residue which can help prevent further contamination by green growth.

It penetrates the surface, breaking down and lifting the organic matter so it can be easily rinsed or brushed away.

Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable).

This product is not for use in the prevention of Moss or Weeds, please use an appropriate plant prevention formula where needed. Just mix up the required dilution and spray it onto your patio (you can also apply it using a watering can). It is relatively inexpensive and can be laid reasonably quickly and easily leaving a smart, clean appearance. Suitable for use on paving, patio, decking, plastic, glass greenhouses, sheds, terracotta, roofing, and even on the caravan, our range of green mould and algae removers are versatile and practical.Try to avoid extremes of temperature so if it reaches below 1 or 2 degrees and the ground seems frozen or if it is a very hot day above 28 degrees then postpone applying until another day. I would like to use it on a UPVC Conservatory - in particular the roof which is some sort of clear plastic and not glass.

We understand that particularly here in the UK its very difficult to predict the weather but just be sensible and if the forecast is for imminent rain then choose another day.

Containing 100% more active ingredient than other brands, it tackles dirt and green growths, leaving your garden looking spotless.