Overview Guide Over the last two decades, resin bound systems have been proven to be extremely durable and easy to maintain, if properly looked after and not abused. It is important that the surface is only used for what it was designed for, with respect to the specification of the full build up. If the surface was designed for foot traffic, it’s likely the full construction wasn’t designed to take heavy loads like vehicles etc. If it is likely that your surface is to be occasionally used by heavy goods vehicles, speak with your contractors and suppliers to design a full construction which can handle such traffic. It’s also highly recommended that other heavy objects such as skips shouldn't be dragged across resin bound surfaces (I know that sounds ridiculous, but one of my customers were silly enough to do this!!!). In order to prevent moss growth, it is important to regularly sweep and remove any leaves, twigs, etc., from the surface and if moss or weed growth is evident, treat immediately with appropriate herbicide or weed killer. If such debris is left on the surface for too long, there is a risk of staining from tanning. In terms of general cleaning and removing things like tyre marks, a light, cold power wash is absolutely fine. DO NOT hold the sprayer too close to the surface, to avoid compromising the resin bound structure. More specific cleaning… Cement Contamination Cement or concrete contamination can be removed using dilute hydrochloric acid or a proprietary cement removers. Polyurethanes are great for chemical resistance, but it’s recommended to trial whatever you use in a small area initially to confirm it’s suitable. Oil/Fuel Contamination These are the most harmful to polyurethane, so should be removed as quickly as possible to avoid compromising or staining the surface. Apply a mild detergent using a stiff brush in the isolated area of contamination, then leave to penetrate through the resin structure for about 10 minutes and finally wash through with cold water/pressure washer. Other Spillages Main concern is staining, so immediate action is the key. Again, light detergents are recommend along with a light, cold power wash. Sand, Soil, etc. After shovelling as much of the surface sand or soil, etc., use a stiff brush to get into the pores. Once you’ve removed as much as possible, a final power wash should remove any remaining. Chewing Gum Freezing spray is available, which makes removing chewing gum really easy with a scraper. If you’re struggling, get in contact with a specialist cleaner. Mineral Staining (Rust Staining) System and aggregate suppliers generally do a very good job of minimising the potential of such staining, however, the aggregate is a natural product and can contain naturally occurring iron pyrites (and other heavy metal contaminants). These can have the potential to oxidise when weathered, causing the surface to stain (it typically produces a dark spot around the area of contamination). Specialist acid solutions are available (such as oxalic acid), which can be effective on such stains. It’s crucial that the solution is only applied to the area of contamination, so should be applied carefully with something like a paint brush. Sometimes it may take a number of applications to completely remove stains. Ice No problem to use normal salts on resin bound during the colder months, just be sure to thoroughly wash away any salt/grit when conditions return to normal.