

Koch Chemie · Germany · Rinseless Wash Concentrate
1:256 Concentrate · Spray Bottle & Bucket Method · RRW
The rinseless done right — matches the market on ratio, beats it on execution.
RRW is the second rinseless wash Koch Chemie has produced. Where Wash & Finish came ready-to-use, RRW comes concentrated at a 1:256 dilution — the ratio the US market already expects from this category. Development started the moment Wash & Finish hit the market, aimed squarely at getting cleaning power and cost per application right. Both landed.
At minimum, RRW matches any comparable product in this segment on dilution ratio, cleaning power, and water conservation — and it holds up against the established competition, not just the previous version it replaces.
A rinseless wash is a compromise, and a situational one — useful when it's used properly, and it's stocked here because that's a legitimate method, not a shortcut. But it demands discipline: work from least to most dirty, have a process before the first panel gets touched, and stay on top of what the surface is telling you the whole way through.
What it delivers
Industry-standard 1:256 dilution — concentrated to match what US detailers expect from this category. One bottle goes significantly further, with cost per use in line with the best options on the market.
Top-tier cleaning power — a major step up from the previous version. At minimum matches comparable products in this segment and holds up against established competition.
One ratio, spray bottle and bucket — same 1:256 mix across both. Spray to saturate and encapsulate dirt, dwell briefly, then wash top to bottom with a quality pad.
Water conservation — no pressure rinse, no running hose. Built for limited water access, tight time, or when a full wash setup isn't practical, without trading away cleaning power.
At a Glance
Rinseless washing demands process discipline. Transferring contamination from a dirty area to a clean one is the primary cause of surface issues with this method. Always work least to most dirty, and wipe each panel dry before moving to the next. If a vehicle is significantly dirty, a rinseless may not be the right tool for that wash.
How to Use
Dilute to 1:256 in both a spray bottle and a wash bucket.
Spray and saturate a section to encapsulate dirt. Allow a brief dwell.
Wash with a quality pad from the bucket, working top to bottom and least to most dirty.
Wipe each panel dry with a clean towel before moving to the next section — don't skip this step.
Recommended Pairings
Drying Towel
KLiN Korea Plush+ Microfiber Towel
Panel wipe-down after each section
Spray Bottle
Koch Chemie 1L Spray Bottle
Dilute to 1:256 · pre-saturate sections
Wash Bucket
Detail Division Bucket
Rinseless solution for mitt/pad washing
Wash Mitt / Pad
KLiN Korea Softy HD Wash Mitt
The right contact tool for rinseless method