✅ 1️⃣ Visual Decision Chart
START HERE ↓
Is the surface slightly tacky or dragging?
├── YES → Use B2 Cleaning System
│ (Early-stage residue buildup)
│
└── NO ↓
Does the surface feel sticky, dull, or uneven?
│
├── YES → Use B3 Degreasing System
│ (Oils have penetrated, and deterioration has started)
│
└── NO ↓
Does the surface feel soft, spongy, or “melting”?
│
├── YES → Use B7 Refinishing System
│ (The polyurethane structure has broken down)
│
└── NOT SURE?
→ Start with B2 → escalate if needed
✅ 2️⃣ WHICH KIT DO I NEED?
How to Choose the Right Bicast Leather Kit
Bicast leather stickiness develops in stages.
Choosing the correct system ensures success.
Choose B2 Cleaning System if:
- Surface feels slightly tacky
- Stickiness is recent
- No soft or spongy feel
- Happens mainly in high-contact areas
✅ This is a preventive and early correction
Choose B3 Degreasing System if:
- Stickiness is obvious and persistent
- Surface looks dull or uneven
- Cleaning no longer solves the issue
- Oils and sweat have likely penetrated
✅ This is an active correction
Choose B7 Refinishing System if:
- Surface feels soft, spongy, or rubbery
- Leather feels like it is “melting.”
- Sticky even after degreasing
- Finish looks worn or degraded
✅ This is structural restoration
Still Unsure?
Start with the B2 Cleaning System.
If the problem remains:
→ Upgrade to B3, then B7 if necessary
This ensures the safest and most effective approach.
✅ 3️⃣ B7 FAILURE PREVENTION
Why Some Sticky Leather Repairs Fail (And How to Avoid It)
Sticky Bicast repair can fail — not because of the product, but due to process gaps.
Here are the most common causes and how to avoid them:
1. Incomplete Removal of Deteriorated Topcoat
Problem:
Old polyurethane remains active underneath
Result:
New coating stays sticky or does not cure
✅ Solution:
Use Buffer 3 thoroughly
Continue until the residue becomes a fine white powder
This indicates unstable PU has been removed
2. Applying Topcoat Too Thick
Problem:
Heavy layers trap moisture and prevent curing
✅ Solution:
Apply thin, even coats only
Allow proper drying between layers
3. Skipping Proper Drying Time
Problem:
Moisture interferes with crosslinking
✅ Solution:
Allow 2–3 hours between coats
Cure 24–48 hours before use
4. Low Temperature or High Humidity
Problem:
Slows or prevents proper curing
✅ Solution:
Ideal temperature: 20–25°C
Ensure airflow (fan), avoid a cold environment
5. Insufficient Prep Application
Problem:
Contamination remains under the coating
✅ Solution:
Ensure proper degreasing
Visible transfer to the towel is expected
✅ Professional Insight
- Sticky bicast is a surface failure problem, not just a cleaning issue.
Successful repair depends on:
Removing instability
Rebuilding with controlled thin layers