Gtechniq

Gtechniq (founded 2002 in the United Kingdom) is a professional-installer-tier detailing brand with a strong consumer presence in coating maintenance and paint decontamination. The product line is organized around C-series ceramic coatings (C2, CSL, EXO) and W-series wash and decontamination products (W1 Citrus Foam, W4 Citrus All Purpose, W6 Iron and General Fallout Remover). The brand publishes SDS documents directly on gtechniq.com using a stable URL pattern (`/wp-content/uploads/{YYYY}/{MM}/{PRODUCT_CODE}_US.pdf`). W6 specifically is a pH-neutral thioglycolate-based iron remover marketed as coating-safe — community evidence generally supports this on Crystal Serum and similar Gtechniq coatings, with documented manufacturer maximum-dwell guidance.