Our Metal Pergola Cleaner has a powerful, easy-to-use formula designed to clean and protect your metal pergola (both aluminium and steel). Effectively removes dirt, and weather build-up, leaving surfaces clean, refreshed, and looking like new. Suitable for all metal pergolas. This cleaner has been tried and tested with the full range of PergoSTET pergolas, making it the perfect partner to keep your investment clean. Directions for use: Ensure the area is free from debris and the pergola is dry prior to application. Apply directly to the area to be treated and use the cloth to work in the solution. Finish with a clean, damp cloth to wipe away any residual cleaner.