# Products diluted 1:20~1:60

> 2 products. A curated index over the authoritative English catalogue (for AI/search agents).

- [Hull Precleaner alkaline](https://findyourdetail.io/products/koch-chemie/hull-precleaner-alkaline) — Koch Chemie · pH alkali (13) · dilution 1:20~1:60 · [Amazon](https://www.amazon.com/s?k=Koch+Chemie+Hull+Precleaner+alkaline&i=automotive)
- [Vorspruehreiniger Plus](https://findyourdetail.io/products/polytop/vorspr-hreiniger-plus) — POLYTOP · pH alkali (14) · dilution 1:20~1:60