Bilt-Hamber hydra-wax

Bilt-Hamber has been a frequent winner in our clay bar tests over the years, and hydra-wax proves it knows a lot about the next stage in the car care process, too. The product goes on easily with the supplied applicator and microfibre cloth, although it’s a little slow as you need to wait five to 10 minutes for it to haze. Despite being a liquid wax, a little goes a long way, plus it lasts: this was among the strongest at the end of our test.