Leather Strong Foam Cleaner 4.3 (Strong Foam 4.3)
Enhanced pH-Balanced Foam Cleaner for Moderate Leather Soiling
Leather Strong Foam Cleaner 4.3 by Leather Doctor® is a general-purpose foam cleaner designed for moderate everyday soiling on leather, Nubuck and Suede.
With a designated pH of 4.3, it is formulated within Leather Doctor's Leather-Safe™ pH range of 3.0–5.0.
Its enhanced cleaning capacity makes it suitable for removing accumulated body-contact soil, perspiration residues, environmental dirt and everyday grime that may require more cleaning power than a mild maintenance cleaner.
The controlled foam application provides convenient surface distribution and working contact, allowing the cleaner to be gently worked into soiled areas before rinsing.
Key Features & Benefits
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Enhanced Cleaning Action: Designed for moderate everyday soil accumulation.
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Leather-Safe™ pH 4.3: Formulated within the designated leather-safe pH range.
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Controlled Foam Application: Provides convenient foam distribution and working contact.
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Progressive Cleaning Strength: Offers greater cleaning capacity than Soft Foam 3.8.
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Multi-Material Application: Designed for leather, Nubuck and Suede, subject to material and colorfastness testing.
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Common Rinse Compatibility: Follow with Leather Rinse 3.0 to remove suspended soil and cleaning residues.
Recommended Applications
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Moderately soiled leather upholstery.
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Body-contact areas such as armrests, seats and headrests.
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Leather automotive interiors.
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Handbags and leather accessories with accumulated handling soil.
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Leather garments and footwear.
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Moderate everyday soiling on Nubuck and Suede, following substrate-specific testing.
How to Use
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Inspect the leather and test for colorfastness in an inconspicuous area.
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Dispense Strong Foam 4.3 onto an appropriate foam applicator or cleaning brush.
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Apply to the soiled area and work gently using an appropriate leather brush.
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Allow sufficient cleaning contact without letting the working solution dry.
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Wipe away suspended soil using a clean absorbent towel.
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Follow with Leather Rinse 3.0 to remove remaining cleaning residues.
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Allow the leather to dry naturally.
Bottle Size:
3.3 oz Foamer Bottle (RTU) = US$17.95
8.4 oz Foamer Bottle (RTU) = US$29.95
16 oz Twist-Top Refill Bottle (CTF 4X Con 1:3) = US$41.95
32 oz Twist-Top Refill Bottle (CTF 4X Con 1:3) = US$66.95
For absorbent leather requiring restorative care after cleaning, continue with the appropriate Leather Doctor treatment system, including Hydrator 3.3 and Fatliquor 5.0 when required.
Choosing the Right Cleaning Strength
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Soft Foam 3.8: Light general soiling and delicate routine cleaning.
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Strong Foam 4.3: Moderate body-contact soil and accumulated everyday grime.
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Super Foam 4.9: Heavy general soiling and stubborn accumulated surface contamination.
Leather Doctor® – Restore Below, Refine Above.
November 11, 2026 - Roger Koh