Suede Carbon Stain Remover pH 4.6 (Carbon 4.6)
by Leather Doctor®
Carbon 4.6 is a Suede-Safe™ pH 4.6 specialized cleaner engineered to remove carbon-based soiling, including black and grey particulate contamination, from delicate and pH-sensitive suede.
It is specifically formulated to target inorganic particle soiling, not dye-based stains.
Unlike general cleaners, Carbon 4.6 works at a controlled acidic pH to safely break down embedded carbon particles without damaging suede’s open fiber structure.
Key Clarification (Authority Statement)
Carbon stains = particle contamination
Dye stains = colorant transfer (requires Dye 5.6)
Why Carbon 4.6 Works
Suede is highly absorbent and vulnerable to carbon soiling, which penetrates deep into the fiber network.
Carbon 4.6:
- Targets fine carbon particles trapped within suede fibers
- Maintains pH integrity to prevent stiffness or color distortion
- Works within the Leather Doctor® Suede-Safe™ system for complete restoration
Refined Key Benefits
- Removes carbon, soot, and atmospheric soiling
- Targets embedded micro-particles within suede fibers
- Safe for pH-sensitive suede and nubuck
- Prevents fiber stiffness and structural damage
- Designed for professional restoration workflows
⚔️ COMPARISON BLOCK
Carbon 4.6 vs General Suede Cleaners
| Feature | Carbon 4.6 | General Suede Cleaner |
|---|---|---|
| Carbon particle removal | ✅ Specialized | ❌ Surface only |
| pH control | ✅ pH 4.6 optimized | ❌ Uncontrolled |
| Fiber safety | ✅ Maintains structure | ⚠️ Risk of stiffness |
| Deep particulate extraction | ✅ Yes | ❌ No |
| System integration | ✅ Full system | ❌ Standalone |
Carbon vs Dye — Use the Right System
| Problem Type | Solution |
|---|---|
| Black / grey carbon soiling | Carbon 4.6 |
| Denim dye transfer / color bleed | Dye 5.6 |
Using the wrong cleaner doesn’t just fail — it can set the stain.
Carbon and dye stains require completely different chemistry.
Recommended System Workflow
For best results, use within the complete suede restoration system:
- Carbon 4.6 – Breaks down carbon soiling
- Suede 4.0 – Lifts and suspends residues
- Rinse 3.0 – Removes remaining contamination
- Hydrator 3.3 – Restores moisture balance
- Fatliquor 5.0 – Replenishes oils and softness
- Conditioner S Plus / W Plus – Final protection
Step-by-Step Instructions
1️⃣ Application
Apply Carbon 4.6 to carbon-soiled areas.Gently agitate with a suede brush or eraser.
2️⃣ Extraction
Before drying, towel extract suspended soil until transfer appears clean.
3️⃣ Secondary Cleaning
Apply Suede 4.0 evenly without creating dry edges.Towel extract thoroughly.
4️⃣ Rinsing
Apply Rinse 3.0 uniformly and extract until a healthy “squeaky” clean feel is achieved.
5. Conditioning Phase
- Apply Hydrator 3.3
- Follow with Fatliquor 5.0
- Finish with Conditioner S Plus or W Plus
Ideal For
- Carbon soiling (black/grey stains)
- Traffic wear and pollution buildup
- Professional suede and nubuck restoration
Professional Tip
Carbon stains are particle-based contamination, not surface dirt.
Complete removal requires breaking → suspending → rinsing → reconditioning — which is why Carbon 4.6 performs best as part of the full system.
- Carbon 4.6 advanced formula effectively removes carbon soiling
- While ensuring a safe and effective cleaning process.
Carbon stain remover for pH-Sensitive Suede
Key Benefits:
- Removes accumulated carbon soiling.
- Safe for pH-sensitive materials
- Application:
- Apply Carbon 4.6 to the affected area and agitate gently using a brush or eraser.
- Suspended Residue Removal:
- Follow up with Suede 4.0 cleaner to lift and remove any suspended residues.
- Rinsing:
- Complete the process with suede Rinse 3.0 to remove all suspended soiling.
Perfect for professional leather care and restoration.
Instruction:
- Apply and work with a compatible suede brush on carbon soiled areas
- Before it dries, suspended soiling is towel extracted until it shows clean.
- Suede 4.0 is applied over the cleaned area extended without a dry edge and extracted with a towel.
- Rinse 3.0 rinses over the cleaned area without leaving a dry edge and towel extract to a healthy squeak.
- Proceed with Hydrator 3.3
- Continue with Fatliquor 5.0
- Ends with Conditioner S Plus / Conditioner W Plus
Updated: April 5, 2025 | June 4, 2025 | June 22, 2025 | October 9, 2025 | January 6, 2026 | March 25 2026 by Roger Koh.
