"Good product for grout but not silicone." star star star star_border star_border This mould remover is great at getting mould off grout but I do find that it doesn't shift the mould from the silicone behind my bath taps. The taps are close to the wall so it's almost impossible to get behind them to keep the silicone clean. I was hoping this would do the trick and it does with the grout, but the silicone stays stubbornly black even with repeated applications. Mrs Robertson - 29 May 2021 support_agent A note from the team Thank you for placing your review. You may find with more stubborn stains it needs to be left on for longer or even overnight.