Koch-Chemie Copo Star BMP-T "Cst" Pre-Cleaner 10kg

Eliminate stubborn industrial dirt — with Koch-Chemie Copo Star BMP-T "Cst" Pre-Cleaner

The Koch-Chemie Copo Star BMP-T "Cst" is a highly concentrated, alkaline pre-cleaner for manual and mechanical removal of oil, grease, and industrial residues on vehicles, machines, and industrial surfaces — designed as a preparatory cleaner before the actual cleaning process, for dirt that overwhelms standard cleaners.

• Highly alkaline pre-cleaner — concentrated action against baked-on oil, grease, and soot residues that resist standard alkaline cleaners.
• Pre-treatment before the main cleaning step — pre-treats stubborn deposits so that the subsequent cleaning step (e.g., with Cosmo-Clean) can work effectively.
• For commercial users — designed for automotive workshops, vehicle detailing, and industrial cleaning, not for private use.

Why do you need a pre-cleaner like Copo Star BMP-T?

In commercial vehicle and machine maintenance, there are types of dirt that cannot be completely removed with an ordinary cleaning step: baked-on engine oil residues on engine blocks, hydraulic oil deposits on vehicle underbodies, old grease accumulations on axles and chassis, or industrially accumulated soot film on commercial vehicles. The Copo Star BMP-T "Cst" is designed as a pre-cleaner for exactly these application classes. Its highly alkaline pH value dissolves polymerized greases and oils that are baked onto metal surfaces by heat. Copo Star BMP-T is applied before the actual cleaning process, allowed to dwell, and thus breaks the bond between the dirt layer and the substrate — making the subsequent main cleaning step significantly more efficient.

Application and dosage — how to use pre-cleaner correctly

Spray or apply Copo Star BMP-T, depending on the degree of soiling, undiluted or slightly diluted, to the surface. Observe the dwell time — between 3 and 10 minutes, depending on temperature and degree of soiling. Then work off with a high-pressure cleaner or brush. Do not use on hot surfaces and avoid direct sunlight during the dwell time. Not suitable for painted surfaces — the high pH value can attack paints and coatings. Protective equipment (gloves, eye protection) is mandatory when handling.

Practical tip from Detailing1: Never use Copo Star BMP-T on warm engines or in direct midday sun — the evaporation of the product accelerates and the dwell time shortens uncontrollably. Best results at room temperature or on slightly pre-warmed surfaces (hand warm). After rinsing, treat with Cosmo-Clean "Cc" to neutralize any remaining residues from the alkaline pre-cleaner.

Copo Star BMP-T vs. Green Star — which product for which task?

While Koch-Chemie Green Star BMP is a versatile universal cleaner for moderate to medium dirt, Copo Star BMP-T is designed for extreme dirt that overwhelms Green Star. Rule of thumb: If you can't get clean with Green Star in two passes, you need Copo Star as a pre-cleaner. Always perform a final cleaning step with a milder cleaner after Copo Star BMP-T to completely remove residues of the alkaline cleaner.

Who is Copo Star BMP-T the right choice for?

For automotive workshops, vehicle detailing businesses, and industrial companies that regularly clean heavily soiled vehicles or machines. The 10 kg container is sized for commercial use. The product is not suitable for private users — the high pH value requires expertise in handling and is exclusively approved for commercial users.