Bilt Hamber

Bilt Hamber is a UK manufacturer with an engineering rather than marketing emphasis — formulations are documented and discussed by their developers, and the company publishes technical bulletins on the chemistry behind each product. Their reputation in the detailing community is built on substance, not branding.

Their Auto-Clay range (Soft, Medium, Regular) is the canonical reference for paint-safe decontamination clay in enthusiast forums — it's the only major clay brand that requires only water as a lubricant, eliminating the need for a companion clay-lube product. The product line also includes Auto Foam (snow foam pre-wash), Auto-Wash, and Korrosionsschutz (corrosion protection) products that are widely respected in European detailing communities.