Got to agree with Paul. having used their Dynax S50 and Waxoyl, i cleaned the waxoyl out of the door panels because it had set hard and there was rust underneath Re applied S50 and it seeped out of tiny area's that Waxoyl had'nt..... so far no more rust, so am afraid Waxoyl is only used on places not really prone to rust. Someone told me when it was made by Finnegans it was ok. But now it is a different matter probably caused by the EU saying it will kill you if you drank it...... Price wise, yes Bilt hamber S50 is expensive, but new panels and spraying are a huge amount more expensive. And they are big cans.
Tony