Fluid Film Black Rustproofing Protection – UK Stockist
Long-Lasting Lanolin-Based Underbody Coating for Vehicles and Equipment
Rustbuster is proud to be one of the first UK stockists of Fluid Film Black, the powerful lanolin-based rustproofing solution designed for long-term underbody protection. Ideal for automotive, agricultural, and industrial use, Fluid Film Black offers a non-toxic, solvent-free coating that protects metal surfaces from corrosion — without cracking, drying out, or harming paintwork.
✅ What Is Fluid Film Black?
Fluid Film Black is a natural lanolin-based underbody coating that provides robust, long-lasting protection against rust. Derived from sheep’s wool, lanolin has been trusted for decades as a corrosion-resistant barrier — originally developed during World War II to protect the US Navy fleet.
This advanced formula now offers the same legendary performance in an attractive black finish, perfect for vehicle chassis, subframes, suspension components, and other exposed metal surfaces.
🔍 Key Benefits of Fluid Film Black Rustproofing
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Moisture displacement
Forms a powerful anti-corrosion barrier by displacing moisture and bonding to metal. -
Creeps into seams and cavities
Its natural viscosity allows it to penetrate tight seams, overlaps, and hard-to-reach areas. -
Solvent-free and non-cracking
Stays flexible and wet, unlike bitumen-based underseals that harden and crack over time. -
Safe and non-toxic
Contains no harmful chemicals, making it safe for users, paintwork, and plastics (avoid on non-oil-resistant rubber). -
Allows ongoing inspections
Can be removed with white spirit for periodic checks and reapplication as needed. -
Rust release action
Helps free up seized nuts, bolts, and corroded components.
🧼 Surface Preparation for Fluid Film Black
For the best performance, proper surface prep is essential:
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Power wash the area to remove dirt and debris.
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Degrease using a strong detergent like Rustbuster SP10.
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Remove loose rust with a wire brush or mechanical tools.
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Treat any remaining surface rust with Rustbuster Fe‑123 Rust Converter.
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Allow the surface to dry before application.
🛠️ How to Apply Fluid Film Black (Non-Aerosol)
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Shake or stir thoroughly before use.
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Ensure the product is at or above room temperature for optimal spraying.
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Thinning is usually unnecessary. However, vegetable oil can be added if needed.
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Use a compressor and spray gun — not suitable for hand or garden sprayers.
Recommended spraying pressures:
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Compressor: 60–80 psi
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Airless equipment: 2,000 psi
🎯 Recommended Spray Equipment from Rustbuster:
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Schutz Undercoating/Injection Gun – Compatible with empty Schutz cans.
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Pro Wax Undercoating/Injection Gun – Includes metal cup for direct spraying.
- Elite Rustproofing Injection Gun – Italian made High Pressure underbody and injection gun.
📐 Coverage
Expect coverage of approximately 5 square metres per litre.
🌿 Why Choose Fluid Film Black from Rustbuster?
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Trusted UK supplier of Fluid Film products
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Expert support from rustproofing specialists
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High-performance product with natural, sustainable ingredients
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Ideal for classic cars, 4x4s, agricultural vehicles, and marine use
