The maker claims that after initial application and polishing, further buffing can be carried out 24 hours later. We doubt many motorists would be bothered to return to the job a day after, but we tried – and the results weren’t much different. Despite the liquid formula, it was easy to apply and buffed up well, yet the finish wasn’t as good as rivals – although it was still working hard at the end of our test, with dirt simply slipping off the alloy.