I was put off removing the cross-braces etc for repainting as the corrosion was only surface-level; I'm glad I did, as today I treated all those pesky ferrous areas underneath with Lanoguard and was pleasantly surprised by how easy it was to use. A simple spray nozzle attachment to the 2 litre container allows a variable spray, from fine mist to jet squirt, which gets into most of the areas that need protection with not too much physical contortion. It makes you smell a bit like a sheep shearer, but seems to be a benign product which is also made in the UK. It fully cures in about a week, so I'll have a close look next weekend and re-treat any missed spots; I'll keep an eye on it over the coming weeks, but am hopeful it will prove effective. Has anyone else on the Forum used this product, and what have you thought of it?