Restore Balance After Treatment
Correction is not complete until the leather is rebalanced.
✨ What Rinse 4.0 Does
Rinse 4.0 restores leather to a stable working condition after corrective and specialty treatments, preparing it for proper hydration, fatliquoring, and finishing.
2-LAYER EXPLANATION
Core:
Rebalances leather after treatment.
Deeper:
Following targeted treatments—such as acidification, alkaline correction, protein digestion, or contamination removal—
Rinse 4.0 stabilizes the leather environment, ensuring consistent absorption and performance in subsequent restoration steps.
SYSTEM FLOW
Treatment → Rinse 4.0 → Hydrator 3.3 → Fatliquor 5.0 → Conditioner B
WHEN TO USE RINSE 4.0
✔ after Acidifier 2.0
✔ after Blood Digest 10
✔ after Basifier 8.0
✔ after Sweat 1.0
✔ after Tannin 3.5
✔ after Tarnish 1.3
✔ after Urine 1.0
Use whenever leather has undergone a targeted or corrective treatment
⚠️ IMPORTANT DISTINCTION
Rinse 3.0:
Residue removal + baseline stabilization after cleaning
Rinse 4.0:
Rebalancing after treatment or correction
They serve different roles and are not interchangeable
SYSTEM PRINCIPLE
Rinse 3.0 follows cleaning.
Rinse 4.0 follows correction.
⚠️ WHEN NOT TO USE
❌ routine cleaning
❌ replacing Rinse 3.0
❌ without a prior treatment step
HOW TO USE
- Complete corrective or specialty treatment
- Apply Rinse 4.0 evenly
- Allow leather to rebalance
- Proceed to Hydrator 3.3 → Fatliquor 5.0
WHERE IT FITS
| Stage | Product | Role |
|---|---|---|
| Clean | 2.2 / 4.9 / 4.3 / 3.8 | Remove contamination |
| Stabilize | 3.0 | Baseline after cleaning |
| Correct / Treat | 2.0 / 1.0 / 8.0 / etc | Targeted treatment |
| Rebalance | 4.0 ⭐ | Post-treatment stabilization |
| Restore | 3.3 → 5.0 | Structure recovery |
CORE MESSAGE
Rebalance before you restore.
FAQ
Q: Can I use Rinse 4.0 instead of Rinse 3.0?
A: No. Rinse 4.0 is designed for post-treatment rebalancing, not routine cleaning.
Q: Do I always need Rinse 4.0 after treatment?
A: Yes, to ensure the leather is returned to a stable condition before further steps.
Q: What happens if I skip this step?
A: The leather may remain unstable, leading to uneven absorption and inconsistent results.
Launched April 10, 2026 by Roger Koh
